how many isomers exist for [co(en)₂brcl]⁺
Answers
There exist two isomers for [Co(en)2BrCl]+.
What are isomers?
In chemistry, isomers are molecules with the same molecular formula but different structural formulas. They have the same number of atoms of the same elements, but the atoms are arranged differently in space. For example, glucose, galactose, and fructose are isomers of each other because they all have the same chemical formula (C6H12O6), but their atoms are arranged differently.
What is [Co(en)2BrCl]+?
Cobalt(III) complexes of the type [Co(en)2(NH3)2X]+ (X = Cl, Br, or I) have been prepared by reacting [Co(en)2(H2O)2]3+ with NH4X. The product can be isolated as the hydrated or non-hydrated chloride, bromide, or iodide. The coordination sphere of the cation [Co(en)2X(NH3)2]+ is octahedral, with the two bidentate ethylenediamine ligands occupying cis positions.
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Related Questions
A voltaic cell was constructed using the half-cell Cr(s) | Cr3 (0.32 M) as the anode and the half-cell Sn2 (x M) | Sn(s) as the cathode; the measured cell voltage was 0.44 V. Calculate x, the molarity of Sn2 in the cathode.
Answers
The molarity of Sn2+ in the cathode is approximately 0.15 M.
To calculate the molarity of Sn2+ in the cathode, we can use the Nernst equation and the given cell voltage. The Nernst equation relates the cell voltage to the concentrations of the species involved in the redox reaction.
The balanced half-cell reactions are as follows:
Anode (oxidation half-reaction): Cr(s) → Cr3+(0.32 M) + 3e-
Cathode (reduction half-reaction): Sn2+(x M) + 2e- → Sn(s)
The overall cell reaction is the sum of these two half-reactions:
Cr(s) + Sn2+(x M) → Cr3+(0.32 M) + Sn(s)
Given that the measured cell voltage is 0.44 V, we can substitute the values into the Nernst equation:
Ecell = E°cell - (RT / nF) * ln(Q)
Here:
Ecell = 0.44 V (measured cell voltage)
E°cell = 0 V (standard cell potential since it is not given)
R = 8.314 J/(mol·K) (gas constant)
T = temperature in Kelvin (not given, assume room temperature, around 298 K)
n = number of electrons transferred (from the balanced cell reaction, it is 2)
F = 96485 C/mol (Faraday's constant)
Q = reaction quotient (concentrations of species involved in the reaction)
To calculate x, we need to find the reaction quotient Q. From the balanced cell reaction, we can see that the concentrations of the Cr3+ and Sn2+ ions are equal, as they have stoichiometric coefficients of 1 in the reaction.
Q = [Cr3+]/[Sn2+]
Given [Cr3+] = 0.32 M, we can assume [Sn2+] = x M.
Plugging in the values into the Nernst equation, we have:
0.44 V = 0 V - (8.314 J/(mol·K) * 298 K / (2 * 96485 C/mol)) * ln(0.32 M / x M)
Simplifying the equation:
0.44 = - (0.02768 / x) * ln(0.32 / x)
To solve this equation for x, we need to use numerical methods or a graphing calculator. Let's assume x is a reasonable value, such as 0.1 M, and then calculate the left and right side of the equation:
Left side = 0.44
Right side = - (0.02768 / 0.1) * ln(0.32 / 0.1) ≈ -8.308
Since the left side is positive and the right side is negative, we can see that x = 0.1 M is too small. We need to increase the value of x. By trial and error, we find that x ≈ 0.15 M satisfies the equation:
Left side = 0.44
Right side ≈ - (0.02768 / 0.15) * ln(0.32 / 0.15) ≈ -0.452
Since the left side is positive and the right side is negative, x ≈ 0.15 M is a valid solution.
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1) If heating 1Kg of water, how much would the temperature increase by burning 100g of each substance each substance:
a) Ethanol: ∆H= 29.65KJ/g
b) Hexane: ∆H= 48.29KJ/g
c) Kerosene(C12H26): ∆H= 46.2KJ/g
d) Car Fuel (90% octane): ∆H= 47.3KJ/g
e) Diesel (C12H23): ∆H= 44.8KJ/g
Answers
Answer:
a) The temperature of the water will rise by maximum 100 K, steam by 143.9 K
b) The temperature of the water will rise by maximum 100 K, steam by 1077.45 K
c) The temperature of the water will rise by maximum 100 K, steam by 972.75 K
d) The temperature of the water will rise by maximum 100 K, steam by 1027.86 K
e) The temperature of the water will rise by maximum 100 K, steam by 902.6 K
Explanation:
a) ΔH for ethanol = 29.65 kJ/g therefore, burning 100 g will produce;
29.65 × 100 = 2965 kJ
The specific heat capacity of water = 4.184 J/(g·K)
Therefore, 2965000= 1000 × 4.184 × ΔT
ΔT = 2965000 ÷ (1000 × 4.184) = 708.65 K
Latent heat of water = 2260 kJ/kg will be absorbed when the temperature reaches the boiling point of water hence we have
2965 - 2260 = 705 kJ to heat the water of which a maximum of 418.4 will boil the water and the steam temperature will rise by (705-418.4)/1.996 = 143.59 K
b) For Hexane: ΔH = 48.29 kJ/g
100 g will produce 4829 kJ
∴ Temperature change for the 1 kg water is given as follows
ΔT = 4829000 ÷ (1000 × 4.184) = 1154.16 K
However
4829 - 2260 = 2569
2569 - 418.4 = 2150.6
2150.6 / 1.996 = 1077.45 K
The final steam temperature will rise by 1077.45 K
c) For Kerosene(C₁₂H₂₆): ΔH = 46.2 kJ/g
100 g will produce 4620 kJ
∴ Hypothetically the temperature change for the 1 kg water is given as follows
ΔT = 4620000 ÷ (1000 × 4.184) = 1104.21 K
However
4620 - 2260 = 2360
2360 - 418.4 = 1941.6
1941.6 / 1.996 = 972.75 K
The final steam temperature will rise by 972.75 K
d) For Car Fuel(90% octane): ΔH = 47.3 kJ/g
100 g will produce 4730 kJ
∴ Temperature change for the 1 kg water is given as follows
ΔT = 4730000 ÷ 4184 = 1130.5 K
However
4730 - 2260 = 2470
2470 - 418.4 = 2051.6
2051.6 / 1.996 = 1027.86 K
The final steam temperature will rise by 1027.86 K
e) For Diesel (C₁₂H₂₃): ΔH = 44.8 kJ/g
100 g will produce 4480 kJ
∴ Temperature change for the 1 kg water is given as follows
ΔT = 4480000 ÷ 4184 = 1070.75 K.
However
4480 - 2260 = 2220
2220 - 418.4 = 1801.6
1801.6 / 1.996 = 902.6 K
The final steam temperature will rise by 902.6 K.
A pupil adds 5 cm of 12 mol.dm sulphuric acids to make a 250 cmº solution. Calculate the
concentration of the diluted acid.
Answers
Answer:
0.500 mol/dm³
Explanation:
Using the formula below;
CaVa = CbVb
Where;
Ca = concentration of acid (mol/dm³)
Cb = concentration of base (mol/dm³)
Va = volume of acid (cm³)
Vb = volume of base (cm³)
In accordance to the information provided in this question is;
Va = 5cm³
Vb = 250 cm³
Ca = 12 mol/dm³
Cb = ?
Using CaVa = CbVb
12 × 5 = Cb × 250
60 = 120Cb
Cb = 60/120
Cb = 0.500 mol/dm³
what is 4 forces of flight
Answers
The four forces of flight include the following: lift, thrust, drag, and weight.
What is a force?A force is defined as an external action on an object that causes it to move from one place to another.
For a airplane to be suspended on air, the four forces that must act on it includes the following:
lift force; the upward acting force; weight, the downward acting force; thrust, the forward acting force; and drag, the backward acting force (also called wind resistance).Learn more about force here:
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In the synthesis of aspirin we react salicylic acid with acetic anhydride. The balanced chemical equation is:2HOOCC6H4OH + C4H6O3 → 2HOOCC6H4O2C2H3 + H2Osalicylic acid acetic acetyl salicylic acid. water anhydride If we mix together 26.3 grams of salicylic acid with 17.7 grams of acetic anhydride in this reaction, we obtain 30.7 grams of aspirin.a. What are the theoretical yields of our experiment? b. What are the percentage yields of our experiment?
Answers
(a). First, we need to identify the limiting reactant. Let's calculate the number of moles of each reactant:
For salicylic acid, we have that its molar mass is 138.1 g/mol (you can calculate it using the periodic table and doing the algebraic sum):
\(26.3\text{ g s. acid}\cdot\frac{1\text{ mol s. acid}}{138.1\text{ g s. acid}}=0.19\text{ mol s. acid.}\)And now, let's see the number of moles of 17.7 g of acetic anhydride, where its molar mass is 102.1 g/mol:
\(17.7\text{ g a. anhydride}\cdot\frac{1\text{ mol a. anhydride}}{102.1\text{ g a. anhydride}}=0.17\text{ mol a. anhydride.}\)Now, you can realize that in the reaction 2 moles of salicylic acid react with 1 mol of acetic anhydride. Let's see how many moles of acetic anhydride requires to react with 0.19 moles of salicylic acid:
\(0.19\text{ mol s. acid}\cdot\frac{1\text{ mol a. anhydride}}{\text{2 mol s. acid}}=0.095\text{ mol a. anhydride.}\)You can realize that we obtained less number of moles for acetic anhydride, meaning that the acetic anhydride is in excess and the salicylic acid is the limiting reactant, so we're going to work with this compound to find how many grams of aspirin is produced:
In the chemical equation, 2 moles of salicylic acid reacted produces 2 moles of aspirin, so the mole ratio between these two is 1:1 which is telling us that 0.19 moles of salicylic acid are producing 0.19 moles of aspirin. With this value, we can calculate the mass of aspirin as our theoretical yield. The molar mass of aspirin is 180.2 g/mol:
\(\text{0}.19\text{ mol aspirin}\cdot\frac{180.2\text{ g aspirin}}{1\text{ mol aspirin}}=34.24\text{ g aspirin.}\)Remember that the theoretical yield is the amount that we expect to get in the reaction, in this case, is 34.24 grams of aspirin.
(b). Let's see the formula for percent yield:
\(\text{percent yield=}\frac{actual\text{ amount of product}}{\text{theoretical }yield}\cdot100,\)where the actual amount of product is what we obtained from the reaction, in this case, 30.7 grams of aspirin and the theoretical yield that we've already found (34.24 g). Replacing these values, we're going to have:
\(\begin{gathered} \text{percent yield=}\frac{30.7\text{ g aspirin}}{34.24\text{ g aspirin}}\cdot100, \\ \text{percent yield=89.66}\%. \end{gathered}\)The percentage yield of the experiment is 89.66%.
huryyyyyy plsssssssssssssssssss
Answers
Answer:
B.
Explanation:
bc it goes from having the potential to move to moving sorry if im wrong tho
Which sentence best explains the observed trend in atomic radius as you
move down the periodic table?
O A. The more core electrons an atom has, the smaller the atomic
radius.
OB. The more energy levels that are occupied by electrons, the larger
the atomic radius.
C. The more paired electrons there are, the smaller the atomic radius.
O D. The more neutrons a nucleus has, the larger the atomic radius.
Answers
Answer:
B
Explanation:
The more energy levels that are occupied by electrons, the larger
the atomic radius.
The more energy levels that are occupied by electrons, the larger
the atomic radius. Hence, option B is correct.
What is the atomic radius?The atomic radius is calculated by measuring the distance between the nuclei of two identical atoms bonded together.
In general, the atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remain constant.
Hence, the observed trend in atomic radius as you move down is that the more energy levels that are occupied by electrons, the larger
the atomic radius.
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What is the formula for volume usuing density and mass?
Answers
Answer:
P= \(\frac{M}{V}\)
Explanation:
Which of the following correctly describes the heliocentric model of the Solar System?
A.
Earth is at the center of the Solar System.
B.
The Moon is at the center of the Solar System.
C.
Mars is at the center of the Solar System.
D.
The Sun is at the center of the Solar System.
Answers
Answer:
D. the sun is at the center of the solar system
Answer:
I think its D.
Explanation:
As heliocentrism means a cosmological model in which the Sun is assumed to lie at or near a central point, the only option that states that the Sun is at a central point is D.
what is the difference between biology and anatomy?
Answers
Answer:
Biology is the study of nature, like plants and animals, while anatomy is the study of the human body, like our bones and muscles.
Explanation:
Hope it helped!
a solution is prepared by dissolving 15.0 g of nh3 in 250.0 g of water. the density of the resulting solution is 0.974 g/ml. what is the mole fraction of nh3 in the solution?
Answers
The mole fraction of NH₃ in the solution is 0.076. The mole fraction is a way of expressing the concentration of a component in a solution. It is defined as the number of moles of a particular component divided by the total number of moles in the solution.
To determine the mole fraction of NH₃ in the solution, we need to first calculate the total mass of the solution.
Total mass of solution = mass of NH₃ + mass of water
Total mass of solution = 15.0g + 250g
Total mass of solution = 265.0g
Next, we can use the density of the solution to calculate its volume:
Density = mass/volume
0.974 g/ml = 265.0g/volume
Volume = 272.11 ml
Now we can use the mass of NH₃ and the total volume of the solution to calculate the mole fraction of NH₃:
Mole fraction of NH₃= moles of NH₃/total moles in solution
To find the moles of NH₃, we need to first convert the mass of NH₃ to moles using its molar mass:
Molar mass of NH₃ = 14.01 g/mol
Moles of NH₃= 15.0g / 14.01 g/mol
Moles of NH₃= 1.07 mol
To find the total moles in the solution, we need to use the density and the molar volume of water (which is 18.02 mL/mol at room temperature and pressure):
Volume of water = total volume - volume of NH₃
Volume of water = 272.11 ml - (15.0g / 1.00 g/ml)
Volume of water = 257.11 ml
Total moles in solution = (257.11 ml / 1000 ml/L) * (1 L/1000 ml) * (1 mol/18.02 L)
Total moles in solution = 0.014 mol
Now we can calculate the mole fraction of NH₃:
Mole fraction of NH₃= 1.07 mol / 0.014 mol
Mole fraction of NH₃= 0.076
Therefore, the mole fraction of NH₃ in the solution is 0.076.
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Explain why non-metals tend to be poor conductors using the term electronegativity.
Answers
Explanation:
Components that throughout chemical processes appear to acquire electrons to achieve anions are considered non-metals. These were all elements which are electronegative. Those who are – anti conductors of electricity and heat, fragile and disadvantaged.
An aluminum can is strong enough to withstand pressures of up to 6atm! if you have a can holding a pressurized ges at 2.00 am
at 30°C will the can explode if you theat it up to 710°C?
Answers
Yes, the aluminum can will explode if you threat it up to 710°C because the pressure of the gas will be 6.5 atm which is more than 6 atm.
What is the maximum pressure of the aluminum can?The maximum pressure the aluminum can will stand is calculated as follows;
PV = nRT
where;
P is the pressure of the gasV is the volume of gas in the cann is the number of moles of gasR is the gas constantT is the temperature of gas in the canThe given parameters include;
P = 2.00 atm = 202650 Pa
V = 0.355 m³
n = PV / RT
n = (202650 x 0.355 ) / (8.314 x 303)
n = 28.6 mol
The pressure at 710°C is calculated as follows;
n = (PV) / (RT)
P = (nRT) / V
P = (28.6 x 8.314 x 983) / 0.355
P = 658,417.28 Pa = 6.5 atm
Thus, the pressure at 710°C is more than the maximum pressure the can cannot withstand which is 6 atm, so the can will explode.
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Use the formula to answer the following question4Li + Pb(SO4)2->2Li₂SO4 + PbHow many moles of Pb(SO4)2 are needed to produce 330 g Li₂SO4?
Answers
ANSWER
The number of moles of Pb(SO4)2 is 1.5 moles
EXPLANATION
Given that;
The mass of Li2SO4 is 330g
Follow the steps below to find the moles of Pb(SO4)2
Step 1; Write the balanced equation of the reaction
\(\text{ 4Li + Pb\lparen SO}_4)_2\rightarrow\text{ 2Li}_2SO_4\text{ + Pb}\)Step 2; Find the number of moles of Li2SO4 using the below formula
\(\text{ Mole = }\frac{\text{ mass}}{\text{ molar mass}}\)Recall, that the molar mass of Li2SO4 is 109.94 g/mol
\(\begin{gathered} \text{ mole = }\frac{\text{ 330}}{\text{ 109.94}} \\ \text{ mole = 3.00 moles} \end{gathered}\)The number of moles of Li2SO4 is 3.00 moles
Step 3; Find the number of moles of Pb(SO4)2 using a stoichiometry ratio
In the above equation of the reaction, 1 mole Pb(SO4)2 reacts to give 2 moles LiSO4
Let the number of moles of Pb(SO4) be x
\(\begin{gathered} \text{ 1 mole Pb\lparen SO}_4)_2\text{ }\rightarrow\text{ 2 moles Li}_2\text{SO}_4 \\ \text{ x moles Pb\lparen SO}_4)_2\text{ }\rightarrow\text{ 3.00 moles Li}_2SO_4 \\ \text{ Cross multiply} \\ \text{ 1 mole Pb\lparen SO}_4)_2\text{ }\times\text{ 3 .00 moles Li}_2SO_4\text{ = 2 moles Li}_2SO_4\text{ }\times\text{ x moles Pb\lparen SO}_4)_2 \\ \text{ Isolate x} \\ \text{ x = }\frac{\text{ 1 mole Pb\lparen SO}_4)_2\times3moles\cancel{Li_2}SO_4}{2moles\cancel{Li_2}SO_4} \\ \text{ x = }\frac{1\text{ }\times\text{ 3}}{2} \\ \text{ x = }\frac{3}{2} \\ \text{ x = 1.5 moles} \end{gathered}\)Therefore, the number of moles of Pb(SO4)2 is 1.5 moles
imagine you are frosting a cake apply pascal's law to using the bag of frosting what would happen when you squeeze the bag
Answers
Ideal gas law:
If 6.3 moles of a gas in a 20 L cylinder have a pressure of 5.5 atm, what is the temperature?
Answers
Answer:
212. 9 degree celcius
Explanation:
From PV =nRT
T= PV/nR
T= (5. 5x20)/(6. 3x0. 082)
T= 110/0. 5166
T= 212. 9 degree celcius
1 point
Group 1 metal and a Group 17 halogen form an ionic bond, what best
describes the reaction?
+1
0
H +2 +3 +4 -3 -2 -1
BICINOEN
Na Al Si P S CIA
K к GoGe As Se Br K
In |5n|S|Tele
CS
O A halogen(+1) loses one electron to the metal(-1)
O A halogen(+2) loses two electrons to the metal(-1)
O A halogen(-1) gains one electron from the metal(+1)
O A halogen(-2) gains two electrons from the metal(+1)
O This is a required question
Answers
Which functional group does the molecule below contain?
• A. Ether
• B. Carbonyl
O c. Hydroxyl
• D. Amino
Answers
The functional group that the molecule below contain is: c. Hydroxyl.
Which functional group does the molecule below contain?The hydroxyl group , which is a distinctive functional group of alcohols and phenols, is composed of an oxygen atom bound to a hydrogen atom. The provided molecule is an alcohol since the hydroxyl group is joined to a carbon atom.
A carbon atom is doubly bound to an oxygen atom in the carbonyl functional group (>C=O), whereas an oxygen atom is coupled to two carbon atoms in the ether functional group (-O-). A distinctive functional group of amines is the amino functional group (-NH2), which consists of a nitrogen atom bound to two hydrogen atoms.
Therefore the correct option is C.
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Answer: its B)
Explanation:
it got the other answer wrong
Understanding Claims vs. Scientific Claims
Which statements about claims are true? Check all that apply.
A.Sometimes people claim things that are not true
B.If a scientist claims that something is true, is it true?
C.scientific claim is supported by evidence that demonstrates it is true
D.Scientific claims are the result of controlled experiments.
E.Scientific claims should never be questioned.
Answers
Answer:
IT IS A C D I GOT IT WRONG FROM THE ANSWER ON TOP OF ME
Explanation:
Which one is a single replacement reaction? (Whoever gets it correct first I’ll mark)
Answers
The equation that represents a single replacement reaction given the various options is 2Al(s) + 6HCl -> 2AlCl₃(aq) + 3H₂O(g) (option 2)
What is a single replacement reaction?A single replacement reaction, also known as single displacement reaction is a reaction in which elements higher in the electro-chemical series displace or replace elements lower in the electro-chemical series displace from a solution.
The following example illustrates single replacement reaction:
A + BC -> AC + B
From the above reaction, we can see that A has replace/displace B to from AC.
With the above information, we can determine the equation that represents single replacement reaction. Details below:
Equation from the questions:
2Al + 3Cl₂ -> 2AlCl₃2Al(s) + 6HCl -> 2AlCl₃(aq) + 3H₂O(g)2AlCl₃(aq) -> 2Al + 3Cl₂ AlCl₃ + 3KOH -> Al(OH)₃ + 3KClFrom the above, we can see that only 2Al(s) + 6HCl -> 2AlCl₃(aq) + 3H₂O(g) conform to single replacement reaction.
Thus, the correct answer to the question is: 2Al(s) + 6HCl -> 2AlCl₃(aq) + 3H₂O(g) (option 2)
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When Michelle's blood was tested, the chloride level was 0.55 g/dL. Part A What is this value in milliequivalents per liter? Express your answer in milliequivalents per liter to two significant figures. IVAL OO? mEq/L S
Answers
The given chloride level in Michelle's blood is 0.55 g/dL. Now we need to convert this value into milliequivalents per liter.
Chloride has a molar mass of 35.45 g/mol. The equation for calculating milliequivalents per liter is:milliequivalents per liter (mEq/L) = (mass in g / molar mass) x 10So, milliequivalents per liter (mEq/L) of Michelle's blood is:0.55 g/dL = 0.55 x 10 / 35.45 mEq/L (since 1 dL = 1000 mL)0.55 x 10 / 35.45 ≈ 0.1561 (rounded to four significant figures)So, the value of chloride level in milliequivalents per liter in Michelle's blood is approximately 0.1561 mEq/L (to two significant figures, the answer is 0.16 mEq/L).Thus, the correct answer is IVAL 0.16 mEq/L.
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Which statement by a patient receiving l evodopa/ carbidopa and an anticholinergic indicates the need for further teaching
Answers
The statement indicating the need for further teaching would be, "I can stop taking my anticholinergic medication now that I'm on levodopa/carbidopa."
This statement indicates a misunderstanding by the patient about the purpose and usage of their medications. Levodopa/carbidopa is a combination medication used to treat the symptoms of Parkinson's disease, while anticholinergic medications are prescribed to manage certain symptoms associated with the disease.
It is important for the patient to understand that levodopa/carbidopa and anticholinergic medications have different mechanisms of action and serve distinct purposes in their treatment plan.
By stating that they can stop taking the anticholinergic medication now that they are on levodopa/carbidopa, the patient demonstrates a lack of comprehension about the role of each medication. Levodopa/carbidopa primarily helps increase dopamine levels in the brain to alleviate motor symptoms, while anticholinergics work by blocking the action of acetylcholine, another neurotransmitter involved in movement regulation.
The need for further teaching is essential to clarify the patient's understanding. It is crucial for them to grasp that discontinuing the anticholinergic medication without medical guidance can lead to a worsening of symptoms and potential complications.
The healthcare provider should emphasize the importance of following the prescribed regimen and consult with them to adjust the dosage or consider discontinuation of any medication.
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How many total oxygen atoms are in the formula 3Na(OH)2? A. 1 B. 2 C. 6 D.7
Answers
Write a balanced chemical equation for the reaction that occurs when Mg(s) reacts with Cl2(g).
Answers
Explanation:
When magnesium reacts with chlorine then it forms magnesium chloride.
Equation -
Mg + Cl₂ → MgCl₂
This is the example of Combination reaction.
Which type of bond will form between each of the following pairs.
USED EXACTLY TWICE!!!
(10 points)
1: N and H
2: F and F
3: Li and F
4: Al and Cl
5: H and Br
6: S and F
7: C and O
8: Li and O
9: Cl and F
10: Br and Br
(and they match with)
A. Nonpolar covalent
B. Moderately polar covalent
C. Very polar covalent
D. Ionic
E. moderately to very polar covalent
Answers
Answer: EADCBCEDBA
Explanation:
1. E - Moderately to very polar covalent
Electronegativity (χ) = .84
2. A - Nonpolar covalent
χ = 0 - There is no electronegativity difference
3. D - Ionic
χ = 3 - The electronegativity is greater than 2
4. C - Very polar covalent
χ = 1.55
5. B - Moderately polar covalent
χ = .76
6. C - Very polar covalent
χ = 1.4
7. E - Moderately to very polar covalent
χ=.89
8. D - Ionic
χ= 2.46
9. B - Moderately polar covalent
χ = .82
10. A- Nonpolar covalent
χ = 0 - There is no electronegativity difference
hope this helps :3
write about grass land in long question
Answers
Grasslands are areas where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide.[1] They cover 31-43% of the Earth's land area. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands.[1]
Answer:
Grasslands are areas where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth.
Explanation:
Why do lungfish walk on land?
Answers
Because of the active transport of sodium and chloride out of the ascending limb of the loop of henle and its impermeability to water? all three of the statements are correct two of these statements are correct fluid in the ascending limb of the loop of henle is hyper-osmotic compared to the surrounding environment water is able to be passively reabsorbed in the medullary collecting duct fluid in the distal tubule is hypo-osmotic compared to plasma
Answers
Two of the statements are correct: fluid in the ascending limb of the loop of Henle is hyper-osmotic, while fluid in the distal tubule is hypo-osmotic. Water is actively reabsorbed in the medullary collecting duct due to the presence of aquaporin water channels.
The loop of Henle plays a critical role in generating and maintaining a concentration gradient in the renal medulla, which is necessary for the production of concentrated urine.
In the ascending limb of the loop of Henle, active transport of Na⁺ and Cl⁻ ions out of the tubular lumen leads to the formation of a hyper-osmotic interstitial fluid in the renal medulla. This gradient is then utilized by the medullary collecting duct to reabsorb water and concentrate urine.
In the distal tubule, Na⁺ reabsorption and K⁺ secretion occur, which results in the formation of hypo-osmotic fluid. This fluid then enters the collecting duct, which passes through the hypertonic medullary interstitium, allowing for further water reabsorption and urine concentration.
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The compound Mg(OH)2 is incorrectly named magnesium dihydroxide.
Explain the errors)
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Answer:
Mg(OH)2 is an inorganic compound and it's a base.
because it has a hydroxide ion and its name is magnesium hydroxide
for the reduction of benzophenone into diphenylmethanol, how would the rf values of reactant vs. product compare?
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The Rf of diphenylmethanol (product) is smaller than that of the benzophenone(reactant) .
What is benzophenone used in?
In addition to being a flavoring agent, fragrance enhancer, perfume fixative, and additive for plastics, coatings, and adhesive formulations, benzophenone is also utilized as a UV curing agent. In order to protect cosmetics from harm from ultraviolet light, benzophenone is also used as a screen.
What are the side effects of benzophenone?
Both photocontact dermatitis and the raditional allergic contact dermatitis are caused by benzophenone sensitivity. Products containing benzophenone or benzophenone derivatives may produce redness, swelling, itching, and fluid-filled blisters in people who are allergic to benzophenone.
What is Diphenylmethanol used in?
Diphenylmethanol (DPM) and its derivatives are crucial components in the production of cosmetics, drugs, and practical organic compounds.
How do you make Diphenylmethanol?
A Grignard reaction involving phenylmagnesium bromide and benzaldehyde can produce diphenylmethanol. The reduction of benzophenone using sodium borohydride, zinc dust, or sodium amalgam and water is an alternate approach.
As, we know that,
Diphenylmethanol is an alcohol and benzophenone is a ketone.In Diphenylmethanol there is dipole-dipole interactions and hydrogen-bonding.In benzophenone there is dipole-dipole interaction.Here, Product is more polar than the reactant.Also, Diphenylmethanol has a higher affinity.To know more about
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benzophenone: https://brainly.com/question/29753353
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