4. Ionic compounds conduct electricity when they are in the __ state

Answer:

Only thing that should hold constant is the Density of the water

Explanation:

Since you are removing some of the water, the Mass and Volume will decrease.

Density of the water are the properties should have the same value for both of her measurements.

The density can be described as the mass per unit volume like it is the ratio between mass and volume, how much stuff an object has in a unit volume.

Density is a determining factor of matter, where it shows how tightly the matter is crammed together, the term was discovered by the Greek scientist Archimedes

The density can be calculated as the mass (m) can be divided by the volume (v)

Density = Mass/Volume

The SI unit of density is kilogram per cubic meter (kg/m3).

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Answer:

What are the answer choices

Explanation:

Answer:

The answer choices are

Explanation:

A. The ocean plants cause more weathering.

B. More algae grows and competes for resources.

C. the slow water causes more erosion.

D. Less sediment is deposited in the soil.

But the answer is (D. Less sediment is deposited in the soil.)

The activated carriers produced by the citric acid cycle are NADH and FADH₂ (Option 1 and 5).

The citric acid cycle, also known as the Krebs cycle or TCA cycle, is a series of chemical reactions that take place in the mitochondria of eukaryotic cells. It is responsible for the oxidation of acetyl-CoA to carbon dioxide, the production of NADH and FADH₂, and the conversion of ADP to ATP.

Along with NADH, FADH₂ is also an activated carrier, that transfers electrons to the electron transport chain. The electron transport chain is responsible for generating a proton gradient, which is then used to produce ATP in a process called oxidative phosphorylation. The electrons that pass through the electron transport chain eventually combine with oxygen to form water. Overall, the citric acid cycle is a key part of cellular respiration, which is the process by which cells generate energy in the form of ATP

Your question is incomplete, but most probably your option were

1. NADH

2. NADPH

3. CO₂

4. GTP

5. FADH₂

6. ATP

Thus, the correct option is 1 and 5.

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Approximately 18.4832 mL of 0.250 M NaOH is required to neutralize 30.4 mL of 0.152 M HCl.

To determine the volume of 0.250 M NaOH required to neutralize 30.4 mL of 0.152 M HCl, we can use the concept of stoichiometry and the balanced chemical equation for the neutralization reaction between NaOH and HCl:

NaOH + HCl -> NaCl + H2O

From the balanced equation, we can see that the stoichiometric ratio between NaOH and HCl is 1:1. This means that for every mole of NaOH, we require an equal number of moles of HCl to neutralize.

First, let's calculate the number of moles of HCl present in the given volume:

Moles of HCl = concentration of HCl * volume of HCl

= 0.152 M * 30.4 mL

= 4.6208 mmol (millimoles)

Since the stoichiometric ratio is 1:1, the number of moles of NaOH required to neutralize the HCl is also 4.6208 mmol.

Now, let's calculate the volume of 0.250 M NaOH needed to contain 4.6208 mmol:

Volume of NaOH = (moles of NaOH) / (concentration of NaOH)

= 4.6208 mmol / 0.250 M

= 18.4832 mL

Therefore, approximately 18.4832 mL of 0.250 M NaOH is required to neutralize 30.4 mL of 0.152 M HCl.

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Answer:

Lungs.

Explanation:

They bring the blood throughout the body, to help it function properly

Answer:

D = 2

2H₂0 → 2H₂ + O₂

Explanation:

I'll assume that "DH₂0-DH₂ + O₂" is meant to read:

   DH₂0 → DH₂ + O₂

Water decomposes into oxygen (O2) and hydrogen (H2) molecules.

We are to find a vale of D that will balance this equation.

        DH₂0 → DH₂ + O₂

Count the atoms on both sides of the equation, assuming D is 1 at this point:

 (D = 1)

 Element  Reactant  Product Balanced?

       H            2               2            Yes

       O            1                2            No

We need an additional oxygen atom on the reactant side, so lets try D=2:

2H₂0 → 2H₂ + O₂

 Element  Reactant  Product Balanced?

       H            4               4           Yes

       O            2               2           Yes

The equation is balanced for D = 2:

2H₂0 → 2H₂ + O₂

Answer:

The number of bonds for a neutral atom is equal to the number of electrons in the full valence shell (2 or 8 electrons) minus the number of valence electrons. This method works because each covalent bond that an atom forms adds another electron to an atoms valence shell without changing its charge.

Explanation:

In the Lewis structure for HSIN, there are usually 2 bonds.

To determine the total number of bonds in the Lewis structure for HSIN, we first need to determine the number of valence electrons for each atom and then distribute them to form bonds.

The Lewis structure for HSIN:

H-S-I-N

To calculate the number of valence electrons:

H (Hydrogen) has 1 valence electron.

S (Sulfur) has 6 valence electrons.

I (Iodine) has 7 valence electrons.

N (Nitrogen) has 5 valence electrons.

Adding these together, we have:

1 + 6 + 7 + 5 = 19 valence electrons.

In the Lewis structure for HSIN, hydrogen (H) forms a single bond with sulfur (S), iodine (I) forms a single bond with nitrogen (N), and there are no other bonds.

Therefore, the total number of bonds in the Lewis structure for HSIN is 2.

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The pressure of the gas in the container when the volume is 132.5 mL is 465.54 torr (rounded to the nearest 0.01) with units of torr.

To solve this question, we can use the ideal gas law equation, PV = nRT, where P is the pressure, V is the volume, n is the number of moles of gas, R is the universal gas constant, and T is the temperature. Since the sample of neon is at a constant temperature and the number of moles of gas is constant, we can use the equation P1V1 = P2V2, where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume.
Using the given values, we can write:
P1V1 = P2V2
(757.2 torr) x (81.4 mL) = P2 x (132.5 mL)
Solving for P2, we get:
P2 = (757.2 torr x 81.4 mL) / 132.5 mL
P2 = 465.54 torr
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Answer:  metric unit for length would be Meters (m)

The ratio of octene to oxygen is 1:12.

To determine the ratio of octene (C8H16) to oxygen (O2) in the given reaction, we need to examine the balanced chemical equation. However, the equation you provided does not seem to be balanced. The coefficients for each compound must be determined to achieve a balanced equation before we can calculate the desired ratio.

Assuming you meant the combustion reaction of octene, a balanced equation would be:

C8H16 + 12O2 → 8CO2 + 8H2O

From the balanced equation, we can see that for every 1 mole of octene (C8H16), we require 12 moles of oxygen (O2) to completely react.

This means that for every 1 mole of octene, we need 12 moles of oxygen to fully combust the octene and produce the corresponding amounts of carbon dioxide (CO2) and water (H2O) as shown in the balanced equation.

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Answer:

Write a different letter coefficient in front of each compound in the equation. Write algebraic expressions or rules for each element that equate its atoms on the LHS and RHS. Substitute the values into the other rules to obtain the balancing coefficients

Explanation:

The theory of phlogiston was the first to explain combustion process. J.J Becher was proposed this theory and states the existence of phlogisticated substances contain phlogiston and that they dephlogisticate when burned.

Combustion is the reaction of gases with atmospheric oxygen producing carbon dioxide and water. Gases like hydrocarbons easily undergoes combustion reaction.

Combustion is an exothermic reaction. Thus, heat is evolved to the surrounding. The conservation of mass is not only for combustion but it is the theory of every reaction.

The phlogiston idea, a debunked scientific hypothesis, suggested that combustible bodies contained a fire-like substance called phlogiston, which was produced after combustion.

Johann Joachim Becher originally put out the concept in 1667, and Georg Ernst Stahl later formalized it. The Phlogiston theory sought to explain a variety of chemical reactions, including burning and rusting Hence, option C is correct.

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Because the nucleus can't hold the 18 electrons in the Cl- ion as tightly as the 17 electrons in the neutral atom, the negative ion is significantly larger than the atom from which it forms. For the same reason, positive ions should be smaller than the atoms from which they are formed.

Immunizations are the best way to protect yourself and your family from illnesses.

Immunizations, or vaccines, are one of the most important public health tools available to protect people from serious and potentially deadly diseases. Vaccines work by introducing a small, weakened form of a virus or bacteria into the body. This triggers the body’s immune system to respond and create antibodies, which provide immunity to the disease when the body is exposed to it. Immunization protects not only the person who is vaccinated, but also their family, friends, and community. It can also help prevent the spread of disease to other countries.It is important to stay up to date on immunizations, as recommended by the Centers for Disease Control and Prevention (CDC).

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Here are three examples of actual chemical reactions, along with explanations on how to manipulate each to increase the reaction rate:
1. Combustion of methane (CH4 + 2O2 → CO2 + 2H2O): This reaction can be manipulated by increasing the concentration of oxygen, as more oxygen molecules will collide with methane molecules, leading to a faster reaction rate.
2. Rusting of iron (4Fe + 3O2 → 2Fe2O3): The reaction rate can be increased by raising the temperature, as higher temperatures provide the reactants with more energy to overcome activation energy, leading to more frequent collisions and faster reactions.
3. Neutralization (HCl + NaOH → NaCl + H2O): In this reaction, increasing the concentration of either the acid or the base will lead to a faster reaction rate, as the increased number of particles will cause more collisions and reactions to occur.

Here are three examples of actual chemical reactions and how they can be manipulated to increase the reaction rate:

1. Combustion of methane: This reaction occurs when methane gas (CH4) reacts with oxygen gas (O2) to produce carbon dioxide gas (CO2) and water vapor (H2O). To increase the reaction rate, the temperature can be increased, the pressure can be increased, or a catalyst (such as platinum) can be added to the reaction.
2. Rusting of iron: This reaction occurs when iron (Fe) reacts with oxygen (O2) and water (H2O) to produce rust (Fe2O3·xH2O). To increase the reaction rate, the presence of water and oxygen can be increased, or a chemical such as hydrochloric acid can be added to the reaction to increase the acidity, which will speed up the rusting process.
3. Decomposition of hydrogen peroxide: This reaction occurs when hydrogen peroxide (H2O2) breaks down into water (H2O) and oxygen gas (O2). To increase the reaction rate, a catalyst such as manganese dioxide can be added to the reaction, which will speed up the decomposition process. Additionally, the temperature can be increased or the concentration of hydrogen peroxide can be increased to increase the reaction rate.
Overall, by manipulating factors such as temperature, pressure, concentration, and the presence of catalysts or other chemicals, the reaction rate of these chemical reactions can be increased.
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Answer:

The energy transferred between particles.

Explanation:

Temperature is a measure of the average translational kinetic energy of the molecules of a system. Heat is commonly expressed in either of two units: the calorie , an older metric unit, and the British thermal unit (Btu), an English unit commonly used in the United States. Scientists express heat in terms of the joule , a unit used for all forms of energy.

As heat is added to a substance in the solid state, the molecules of the substance gain kinetic energy and the temperature of the substance rises. 

The limiting component or reactant in a chemical process is the one that controls how much product is created. Because metals and compounds respond in a balanced chemical equation according to their mole ratios, a limiting reactant is necessary.

When a chemical reaction is complete, the limiting reagent—also known as the limiting reactant or limiting agent—is the component that has been completely consumed.  Since the process cannot proceed without this reagent, the quantity of product that can be produced is constrained.

Excess reagents or surplus reactants are any chemicals that are present in amounts greater than those necessary to cause a reaction with the limiting reagent (sometimes abbreviated as "xs").

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what you need:

1 part aloe vera gel or glycerin

2 part isopropyl alcohol (rubbing alcohol) with a concentration of 91%

Essential oil, such as lemon or lavender (this is an optional ingredient for scent)

Clean containers for mixing and an air-tight container for storage

Spoon or whisk for mixing

Explanation:

step:

Combine the aloe vera gel or glycerin with the isopropyl alcohol in a clean container. To get one cup of sanitizer, combine ⅓ cup of gel or glycerin with ⅔ cup of rubbing alcohol.

Mix thoroughly with your spoon or whisk to ensure that the alcohol is evenly distributed throughout the gel.

Stir in five drops of an essential oil, if you're using it. This is entirely optional and is only meant to improve the scent of the sanitizer.

Store the sanitizer in an air-tight container. Alcohol evaporates with time, so an air-tight container will keep your sanitizer effective for longer. A pump or squeeze bottle can minimize evaporation while keeping your sanitizer easily accessible — just make sure the container for your sanitizer is clean and air-tight

25.57 g of NH₃ can theoretically be produced.

Atomic number 7 and the letter N both identify nitrogen as a chemical element. A little more than 78% of the volume of the Earth's atmosphere is made up of this tasteless, odorless, and colorless gas.

According to the chemical equation, 1 mole of N2 interacts with 3 moles of H2 to create 2 moles of NH3. With this knowledge, we can determine how much NH3 can be created from the given amounts of N2 and H2.

Then, we must use their respective molar masses to convert the provided masses of N2 and H2 to moles.

N2 has a molar mass of 28.02 g/mol.

H2 has a molar mass of 2.02 g/mol.

N2 moles= 21.0 g / 28.02 g/mol = 0.749 mol.

Number of moles of H₂ = 6.06 g / 2.02 g/mol = 3.00 mol.

The balanced equation states that 2 moles of NH₃ are created when 1 mole of N₂ combines with 3 moles of H₂. Given that we have 0.749 moles of N₂ and 3.00 moles of H₂, N₂ is the limiting reagent.

We may get the theoretical yield of NH3 using the balanced equation's stoichiometry:

Number of moles of NH₃ = 0.749 mol N₂ x (2 mol NH₃ / 1 mol N₂) = 1.498 mol NH₃

Lastly, we may translate the quantity of NH3 in moles to grams:

Mass of NH₃ = 1.498 mol NH₃ x 17.03 g/mol = 25.57 g NH₃

As a result, 25.57 g of NH₃ can theoretically be produced.

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Explanation:

The Gas Law Apparatus is a high-quality demonstrator of the relationship between pressure, volume and temperature of a gas. The pressure gauge shows how pressure affects volume and vice versa. A digital thermometer displays the temperature.

Answer: 747.98 grams of KCl are made when 5.02 moles of  \(ZnCl_2\) react in the reaction.

Explanation:

The balanced chemical equation is:

\(2KMnO_4+ZnCl_2\rightarrow 2KCl+Zn(MnO_4)_2\)

According to stoichiometry:

1 mole of \(ZnCl_2\) produce = 2 moles of \(KCl\)

Thus 5.02 moles \(ZnCl_2\) will produce =\(\frac{2}{1}\times 5.02=10.04\) moles of \(KCl\)

Mass of \(KCl=moles\times {\text {molar mass}}=10.04mol\times 74.5g/mol=747.98g\)

Thus 747.98 grams of KCl are made when 5.02 moles of  \(ZnCl_2\) react in the reaction.

Answer:

a: cells

Explanation:

just did it. your welcome have a nice day

answer :- The smallest unit of life that conducts all life function are cell

A total of 6 molecules of carbon dioxide are required to be produce in one calvin cycle to make one molecule of glucose.

Basically Calvin cycle is a series of chemical reaction that are performed by plants in order to fix the carbon dioxide present in the atmosphere by converting them into carbon sugars.

During photosynthesis carbon dioxide is taken by the plants and it is converted into glucose molecule a total of sex carbon dioxide molecules are required in order to make one molecule of glucose.

The chemical formula of glucose molecules C₆H₁₂O₆.

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The balanced reaction equation for the bromination of stilbene using pyridinium tribromide is: C14H12 + Br2 → C14H10Br2 In this reaction, stilbene (C14H12) reacts with bromine (Br2) to form dibromostilbene (C14H10Br2).

The balanced reaction equation for the bromination of stilbene using pyridinium tri-bromide is: Stilbene + 3 Br2 + Pyridinium tribromide → 2,3,4,5-tetrabromostilbene + Pyridinium bromide In the given procedure, the amount of stilbene is not mentioned, so we cannot determine the limiting reagent directly.

To find the limiting reagent in a given procedure, you will need to compare the stoichiometric ratios of the reactants to determine which one will be completely consumed first during the reaction.

To do this, you'll need the amounts (usually in moles or grams) of both stilbene and pyridinium tribromide used in the procedure.

However, we can assume that the amount of pyridinium tri-bromide is in excess, and the limiting reagent will be the reactant that is completely consumed first.

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Answer:

It is Noble-gas notation

Explanation:

Just did it on Edgenuity 2020

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, the given electronic configuration represents noble-gas notation​.

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

The systematic distribution of electrons in the various atomic orbitals is called its electronic configuration. The atomic number of argon is 18. The electronic configuration of argon is (Ne) 3s² 3p⁶. 1,2,3 represents the number of shells and s and represents the orbitals. The superscripts represents the number of electrons in each orbitals. The given electronic configuration represents  noble-gas notation​.

Therefore, the given electronic configuration represents noble-gas notation​.

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The amount of CO2 produced is approximately 231.82 grams.

To determine the amount of CO2 produced, we need to calculate the molar mass of propene (C3H6) and the stoichiometry of the reaction. The molar mass of propene is calculated as:

C: 3 atoms x 12.01 g/mol = 36.03 g/mol

H: 6 atoms x 1.01 g/mol = 6.06 g/mol

Total molar mass = 36.03 g/mol + 6.06 g/mol = 42.09 g/mol

The balanced chemical equation for the combustion of propene is:

C3H6 + 9/2 O2 -> 3 CO2 + 3 H2O

From the equation, we can see that 1 mole of propene produces 3 moles of CO2. Therefore, the number of moles of propene can be calculated as:

Number of moles of propene = mass / molar mass = 91.3 g / 42.09 g/mol ≈ 2.17 mol

Since the yield is given as 81.3%, we can calculate the actual yield of CO2 as:

Actual yield of CO2 = 81.3% * (2.17 mol x 3 mol CO2/mol) = 5.27 mol

Finally, we convert the moles of CO2 to grams:

Mass of CO2 = actual yield of CO2 x molar mass of CO2 = 5.27 mol x 44.01 g/mol ≈ 231.82 g

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Answer:

Summer

Explanation:

Assuming you are in the northern hemisphere, it would be summer.

Asia is in the southern hemisphere and because of the Earth's axis of 23 degrees, it causes seasons to be inversed in the other hemisphere.

Hope that helps

Answer:

Do you still need help. If yes write "Yes" in comments and I will answer?

Explanation:

Happy New Year!

Answer

D

Explanation:

They take up usable forms of nitrogen found in soil

Answer:

d

Explanation:

i took the test