Name the following ionic compounds. Use the periodic table, the table of common polyatomic ions, and
the transition metal charges chart found here.
Al₂O3:
I
Name
Formula and
Charge
DONE
Ammonium
NH4
Hydroxide
OH
Nitrate
Carbonate
NO3-
CO32-
SO,2-
PO, 3-
Sulfate
Phosphate

1. The Molar mass of Al(SO₄)₃ is 342.15 g/mol

2. The molarity of aluminum ions in the new solution will be 0.478 M.

1. Aluminum (Al): 26.98 g/mol (2 atoms)

Sulfur (S): 32.07 g/mol

Oxygen (O): 16.00 g/mol (12 atoms)

Molar mass of Al(SO₄)₃ = (2 × 26.98 g/mol) + 32.07 g/mol + (12 × 16.00 g/mol)

= 342.15 g/mol

2. Total moles of Al₃+ ions in the new solution = 0.0436 mol + 0.0877 mol = 0.1313 mol

Volume of the new solution = 225 mL + 325 mL = 550 mL = 0.55 L

Molarity of Al₃+ ions in the new solution = 0.1313 mol / 0.55 L

= 0.478 M

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Answer:

a. evaporation .

Explanation:

In this case, given the described situation, we should take into account that there are two types of liquid-gas phase transitions, evaporation and vaporization, which occur in totally different way.

Firstly, evaporation is a superficial phenomena, it means that it occurs at the surface of the liquid only whereas the vaporization is a bulk phenomena, which means that it occurs along the whole volume of liquid.

In such a way, we can infer that cold steam stream flowing over the pond has the capacity to strip or remove liquid water molecules in the pond and take them to the vapor phase, which means that the answer is a. evaporation .

Best regards.

The number of oxygen atoms in a 120.0 g sample of diphosphorus pentoxide is 2.553 x 10^24. This answer has 4 significant digits and the unit symbol is "oxygen atoms".

To calculate the number of oxygen atoms in a 120.0 g sample of diphosphorus pentoxide (P2O5), we need to use the formula for the number of moles, which is:

n = m/M

Where n is the number of moles, m is the mass of the sample, and M is the molar mass of the compound.

The molar mass of P2O5 can be calculated by adding the molar masses of 2 phosphorus atoms and 5 oxygen atoms:

M = (2 x 30.97) + (5 x 16.00) = 141.94 g/mol

Now we can plug in the values into the formula:

n = 120.0 g / 141.94 g/mol = 0.8453 mol

To calculate the number of oxygen atoms, we need to multiply the number of moles by the Avogadro's number (6.022 x 10^23) and by the number of oxygen atoms in one molecule of P2O5 (5):

N = 0.8453 mol x 6.022 x 10^23 x 5 = 2.553 x 10^24 oxygen atoms

Therefore, the number of oxygen atoms in a 120.0 g sample of diphosphorus pentoxide is 2.553 x 10^24. This answer has 4 significant digits and the unit symbol is "oxygen atoms".

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For a voltaic cell consisting of chromium, an electrode dipped in a 1.20 M chromium (III) nitrate solution and a tin electrode dipped in a 0.400 M tin (II) nitrate solution, the cell potential at 298 K  is mathematically given as

Ecell = 0.577 V

Generally, the equation for the Oxidation and Reduction  is mathematically given as

Cr(s) ------------------ Cr+3(aq) + 3e- ] x 2 ...O

Sn+2(aq) + 2e- ------------ Sn(s) ] x 3  ...R

Reaction

 2 Cr(s) + 3 Sn+2(aq) --------------- 2 Cr+3(aq) + 3 Sn(s)

Therefore

Eicell = - 0.14 - ( - 0.74)

Eicell = 0.60

In conclusion

\(Ecell= E0cell - \frac{0.0591}{n} * \frac{log[Cr+3]^2}{ [ Sn+2]^3}\)

\(Ecell = 0.60 - \frac{0.0591 }{6} \frac{log( 1.20)^2}{ ( 0.200)^3}\)

Ecell = 0.577 V

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The IUPAC name for the compound given in the question is 2,3-dibromo-5-methylheptane

The IUPAC name for compound can be obtained by using the following steps:

Thus, the IUPAC name for the compound is: 2,3-dibromo-5-methylheptane

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The colors in fireworks come from a simple source: pure chemistry. They're created by the use of metal salts. ... Some of these compounds produce intense colors when they are burned, which makes them ideal for fireworks. Others, like potassium nitrate, sulfur and charcoal are often used to help the fireworks burn.

Answer:

Their moms and dads. ;)

Explanation:

Answer:

new pressure = 2.86 atm

Explanation:

To solve the given problem, we have to use the 'combined gas law', which is expressed in the formula:

\(\boxed{\frac{p_1V_1}{T_1} = \frac{p_2V_2}{T_2}}\).

From the question, we know that the initial volume of the gas is 9.5 L, the initial pressure is 3.3 atm, and the initial temperature is 279 K. Therefore, V₁ = 9.5, p₁ = 3.3, and T₁ = 279.

We are also told that the gas temperature increases to 303 K and the volume increases to 11.9 L. Therefore, T₂ = 303 and V₂ = 11.9. We are then asked to calculate the new pressure (p₂).

To do this, we have to substitute the known values into the equation and solve it for p₂:

\({\frac{p_1V_1}{T_1} = \frac{p_2V_2}{T_2}}\)

⇒ \(\frac{3.3 \times 9.5}{279} = \frac{p_2 \times 11.9}{303}\)

⇒ \(303 \times \frac{3.3 \times 9.5}{279} = p_2 \times 11.9\)

⇒ \(\frac{3.3 \times 9.5 \times 303 }{279 \times 11.9} = p_2\)

⇒ \(p_2 = \bf 2.86 \ atm\)

Therefore, the new pressure of the gas is 2.86 atm.

Sulphur has a larger atomic radius than chlorine, even though chlorine has more protons, neutrons and electrons because sulfur is to the left of chlorine in the periodic table.

Atomic radius is defined as the distance between the atomic nucleus of an atom to the electron which is located at the outermost shell of the atom.

In the periodic table, the elements are being arranged in groups and periods with respect to their various atomic mass and numbers.

The atomic radius decreases across the period but increases down the group of the periodic table.

Therefore, sulphur would probably have a larger atomic radius when compared with chloride because it is located to the left of chloride in the periodic table.

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The final pressure of the gas mixtures is 72.48 atm.

The given parameters;

The number of moles of the gases is calculated as follows;

\(number \ of \ moles \ of \ oxygen = \frac{88}{16} = 5.5 \ moles\\\)

\(number \ of \ moles \ of \ argon = \frac{33}{40} = 0.825 \ moles\\\)

The total number of moles of the gas mixture;

= 5.5 + 0.825

= 6.325 moles

The final pressure of the mixture is calculated as follows;

PV = nRT

\(P = \frac{nRT}{V} \\\\P = \frac{6.325\ mol \times (0.0821 \ L.atm/mo.K) \times (62+273)}{2.4 \ L} \\\\P = 72.48 \ atm\)

Thus, the final pressure of the gas mixtures is 72.48 atm.

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An acid–base titration is a method of quantitative analysis for determining the concentration of an acid or base by exactly neutralizing it with a standard solution of base or acid having known concentration. A pH indicator is used to monitor the progress of the acid–base reaction.

There is no change in the concentration of the reactants or the products.

When a reversible process reaches equilibrium,

The forward reaction rate is the same as the backward reaction rate.

The quantity of product being formed is therefore equal to the quantity of reactant being formed in a given amount of time.

Therefore, for a reversible reaction at equilibrium, both the reactant concentration and the product concentration are constant.

Indicators can be used to roughly determine the equivalence point of an acid-base titration as this colour shift only happens over a narrow pH range.

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The principle behind the acid-base titration is that at the equivalence point , is where the no. of moles of the OH⁻ and H⁺ is equals. . indicator is the dye that color depends on the acidity or the basicity of solution.

The principles in which the acid - base titration is based on is that at the equivalence point the number of the moles of the OH⁻  ions and the number of moles of the  H⁺ both are equals. in the neutralization reactions the acid and the base will react and form the salt and the water.

An indicator is the dye or the chemical substances the will indicates the nature of the acidic and the basic solution.

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Answer:

the interface between soil and plant root

Exothermic refers to chemical interactions that aerobic respiration. Combustion reactions release higher energy. Endothermic refers to atoms and molecules that either use or absorb reactive power.

A chemical process known as an endothermic releases energy as heat or light. It is an endothermic reaction's opposite. Chemical equation expressed as reactants + products + energy. An reaction mechanism is one in which electricity is given off as light or warmth.

A response is deemed to be exothermic if it produces heat while also undergoing a net decrease in basic enthalpy change. Samples include those type of combustion, iron rust, including water froze. Exothermic processes are those that discharge heat and energy into the surroundings.

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Explanation:

To calculate the heat gained by nickel, we can use the formula:

q = m * c * ΔT

where q is the heat gained, m is the mass of the nickel, c is the specific heat of nickel, and ΔT is the change in temperature.

Given:

- Mass of nickel, m = 31.4 g

- Specific heat of nickel, c = 0.443 J/g · °C

- Change in temperature, ΔT = 64.2 °C - 27.2 °C = 37.0 °C

Substituting the values into the formula, we get:

q = (31.4 g) * (0.443 J/g · °C) * (37.0 °C)

Simplifying the calculation, we get:

q = 584 J

Therefore, the heat gained by nickel when 31.4 g of nickel is warmed from 27.2 °C to 64.2 °C is 584 J.

Answer:

flo-non metal

germ- metalloid

zinc - metal

phos- non metal

lithium- metal

Answer:

A chemical reaction is a rearrangement of atoms which turn one or more compounds into new compounds. Equations and models may describe all of the chemical reactions. ... If atoms detach from each other and recombine into various types of atoms, we conclude that there has been a chemical reaction.

Answer:

equations and models.

Explanation:

All chemical reactions can be represented by equations and models.

The completed table of maximum moles of water, limiting reactant and excess reactant is as follows:

Q: 6 moles, O₂, 1 mole H₂

R: 6 moles, O₂, 2 moles H₂

S: 5 moles, none, none

T: 5 moles, H₂, 2.5 moles O₂

U: 8 moles, H₂, 2 moles O₂

The mole ratio of the reaction of hydrogen and oxygen to form water is obtained from the equation of the reaction.

The equation of the reaction is given below:

2 H₂ + O₂ --> 2 H₂O

The mole ratio of hydrogen to oxygen is 2:1 in both the water molecule and the reactants, hydrogen gas (H2) and oxygen gas, as can be seen from the balanced equation (O2). 

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Answer: Pressure of the gas is 19.65 atm.

Explanation: Known quantities=

No of moles=37

Temperature=167 °C=440K

Volume=68 liters

unknown quantities

Pressure=x atm

The unknown quantity pressure can be found out by using the ideal gas law equation given by:

PV=nRT ---------- (1)

P = pressure.

V =volume.

n =amount of substance.

R= ideal gas constant.

Substituting the values in equation (1)

P=(37x0.0821x440)/(68)

=19.65 atm

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Answer:

Be replacement

Explanation:

srry they delted my answer before:( someone from brainly all i did was added a link for a quizlet that would help you.. :(

Answer:

Be

Replacement

Explanation:

Answer and Explanation:

The introduced species is, literally, a species that was introduced into an environment by human action. In other words, an introduced species is one that is not native to a region, does not occur naturally, but has been taken by humans to that region.

An invasive species, on the other hand, is one that was introduced naturally in an environment, but multiplied in a harmful way, causing a strong imbalance in the region.

Answer:

About 2.8

Explanation:

Answer:

to determine the concentration of one of the reactants

The main goal of any titration is to determine the concentration of one of the reactants.

Titration is a typical quantitative chemical analysis procedure used in laboratories to quantify the concentration of a specified analyte.

In this method the titrant or titrator is a reagent that is prepared as a standard solution with a known concentration and volume and this will be titrate against another reagent of unnkown concentration in the presence of indicator. Indicator is used to known the end point of the titration.

Hence main goal is to determine the concentration of one of the reactants.

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Answer:

It is a combustion reaction

Explanation:

I'm not sure about the number, but for sure it's a combustion reaction because the products are water and co2.

The strand 1 of hydrocarbons is used to produce plastic, hence option D is correct.

Raw resources like natural gas, oil, or plants that have been processed into ethane and propane are used to make plastics. The subsequent "cracking" procedure uses heat to transform ethane and propane into ethylene and propylene. To produce various polymers, these components are mixed.

Propylene is a substance found in large quantities in petroleum. In order to speed up chemical processes, refiners combine heated propylene with a catalyst to create plastic. Propylene molecules start to cluster together like beads on a thread as a result.

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Given :

Mass of Ba(OH)₂ , m = 35.5 g.

Volume of mixture, V = 325 mL = 0.325 L.

To Find :

The molarity of a solution.

Solution :

We know, molarity of a solution is given by :

\(M = \dfrac{Given \ Weight}{Molecular\ Mass\times Volume( L ) }\)

We know, molecular mass of Ba(OH)₂ is given by :

M.M. = 171 g/mol

Putting all these values in given equation, we get :

\(M = \dfrac{35.5}{171\times 0.325}\ M\\\\M = 0.64\ M\)

Hence, this is the required solution.

The chart with characteristics of mineral resources has been attached below.

Luster, also spelled as "lustre", is the visual appearance of a mineral surface when it reflects light. It is a physical property that describes how shiny or dull the surface of a mineral appears. Luster is determined by the way in which light is reflected from the surface of the mineral, and can be described as metallic (like the shine of a metal), vitreous (like the shine of glass), pearly (like the shine of pearls), greasy, dull, or earthy. The luster of a mineral can provide clues about its identity, as different minerals have characteristic lusters that can help distinguish them from one another.

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The answer responses to  the structures shown in the diagram are:

A. chromosomes

C. They would be the same.

B. They are in pairs because each one comes from a different parent.

The chromosomes are in pairs because humans have a diploid number of chromosomes, meaning they have two sets of chromosomes, one inherited from each parent.

The nucleus is important in eukaryotic cells and has many important parts that help the cell work properly. There are some parts inside cells called the nuclear membrane, nucleoplasm, nucleolus, and chromatin. Chromatin is made up of DNA and other proteins.

Every part of a person's body has the same genes, but the way they are organized can be different in different types of cells. The chromosomes in our skin cells might not be the same as the chromosomes in our muscle cells, even if they come from the same person.

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Identify the structures shown.

A. chromosomes

B. mitochondria

C. nuclei

D. vacuoles

C

Describe how the structures from this cell would compare to the structures in the nucleus of another body cell from the same person.

A. There would be longer.

B. They would be shorter.

C. They would be the same.

D. They would be different.

Describe how the structures from this cell would compare to the structures in the nucleus of another body cell from the same person.

A. There would be longer.

B. They would be shorter.

C. They would be the same.

D. They would be different.

Explain why the structures are in pairs.

A. They aren't in pairs.

B. They are in pairs because each one comes from a different parent.

C. This cell is making a copy of itself.

D. The cell always has 2 copies in case 1 is damaged.

The half-reaction is; H₂ → 2H⁺ + 2e⁻, the oxidizing agent is chlorine , and the reducing agent is hydrogen. The oxidation half-reaction is where a species loses electrons, the reduction half-reaction is where a species gains electrons, the oxidizing agent is the species that causes another species to be oxidized by accepting electrons itself, and the reducing agent is the species that causes another species to be reduced by donating electrons itself.

The oxidation half-reaction is the half-reaction where a species loses electrons. In this reaction, hydrogen (H₂) is oxidized to form hydrogen ions (H⁺). The half-reaction can be written as;

H₂ → 2H⁺ + 2e⁻

The reduction half-reaction is the half-reaction where a species gains electrons. In this reaction, chlorine (Cl₂) is reduced to form chloride ions (Cl⁻). The half-reaction can be written as follows;

Cl₂ + 2e⁻ → 2Cl⁻

The oxidizing agent is the species that causes another species to be oxidized by accepting electrons itself. In this reaction, chlorine (Cl₂) is the oxidizing agent because it accepts electrons from hydrogen (H₂), causing it to be oxidized.

The reducing agent is the species that causes another species to be reduced by donating electrons itself. In this reaction, hydrogen (H₂) is the reducing agent because it donates electrons to chlorine (Cl₂), causing it to be reduced.

Therefore, chlorine is the oxidizing agent, and hydrogen is the reducing agent.

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