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zubka84 [21]
3 years ago
8

A hydrogen electron is elevated from level 1 to level 2. Another electron is elevated from level 2 to level

Chemistry
1 answer:
BaLLatris [955]3 years ago
5 0

Answer: level 2 to level 4

Explanation:

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What are glands.......................
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An organ in the human or animal body that secretes particular chemical substances for use in the body or for discharge into the surroundings.
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A student obtains a 10.0g sample of a white powder labeled as BaCl2. After completely dissolving the powder in 50.0mL of distill
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Answer:

<em>(B.) What is the molar solubility of barium chloride, BaCl2 in water? </em>

Explanation:

Molar solubility is the number of moles of a substance that can dissolve in a liter of solution to the point of the solution's saturation. It can be calculated stoichiometrically from a substance's solubility product constant in mol/L.

Since all the BaCl_{2} reacted all the Na_{2} SO_{4} from the information, we can easily assume all the substances were consumed in the reaction, and hence account for their purity. Furthermore, BaSO_{4} is insoluble in water, the most probable scientific query would be the molar solubility of the BaCl_{2} used in the experiment.

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4 years ago
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In the reversible reaction: 2NO2 (g) ⇌ N2O4 (g) the formation of dinitrogen tetroxide releases heat and the formation of nitroge
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Answer: Option (B) is the correct answer.

Explanation:

According to Le Chatelier's principle, any disturbance causes in an equilibrium reaction will shift the equilibrium in a direction that will oppose the change.

For example, 2NO_{2}(g) \rightleftharpoons N_{2}O_{4}(g)

When we increase the temperature then the reaction will shift in a direction where there will be decrease in temperature.

This, means that the reaction will shift in the backward direction.

Thus, we can conclude that if the reaction is at equilibrium and the temperature increases, the equilibrium will shift so that there is more nitrogen dioxide.

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4 years ago
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The calvin cycle and the krebs are referred to as cycles of chemical reactions because they
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Answer:

The options are

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The answer is b. Start over continually

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The two cycles involves a continuous process as long as the reactants are present under suitable conditions. The cycle happens all the time due to it being necessary to produce important products all the time for the body system.

A good example involves the existing Carbon dioxide and water reacting together to get converted into substance that could provide energy (ATP and NADH) such as Glucose.

8 0
3 years ago
Write balanced complete ionic equation for the reaction AgNO3(aq)+KCl(aq)→AgCl(s)+KNO3(aq).
Nikitich [7]
AgNO3(aq)  + KCl (aq)----->   AgCl(s) +  KNO3(aq)

Ag ^+(aq)   +  NO3^-(aq)  +  K^+ (aq)  +  cl^- (aq) ---->  AgCl(s)  +  K^+(aq)   +  NO3^-(aq)

net  ionic  equation
  Ag ^+(aq)   +  Cl^-(aq)   ---->  AgCl(s)
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