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Travka [436]
4 years ago
5

Page 705 #12/#13: Use the changes in oxidation numbers to identify which atom is oxidized, reduced, the oxidizing agent, and the

reducing agent. 5
A.
2H2(g) + O2(g) → 2H2O(l)

B.
2KNO3(s) → 2KNO2(s) + O2(g)

Chemistry
1 answer:
guapka [62]4 years ago
7 0

Concepts to understand before solving:

-Oxygen is ALWAYS reduced

-OIL- Oxidation Is Loss of electrons

-RIG- Reduction Is Gain of electrons

-the element that is oxidized is the reducing agent

-the element that is reduced is the oxidizing agent

A. 2H2 + O2 —> 2H2O

O is reduced, making it the oxidizing agent

H is oxidized, making it the reducing agent

B. 2KNO3 —> 2KNO2 + O2

O is reduced, making it the oxidizing agent

KNO is oxidized, making it the reducing agent

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Which equation represents a neutralization reaction?
Harrizon [31]

Answer: HCI + KOH → KCI + H20

Explanation:

HCI(aq) + KOH(aq) → KCI(aq) + H20(l)

Acid + base → Salt + Water.

The above is a neutralization reaction in which an acid, aqeous HCl reacts completely with an appropriate amount of a base, aqueous KOH to produce salt, aqueous KCl and water, liquid H2O only.

This is a neutralization reaction since, the hydrogen ion, H+, from the HCl is neutralized by the hydroxide ion, OH-, from the KOH to form the water molecule, H2O and salt, KCl only.

3 0
3 years ago
A sample of ice is heated continuously until it becomes a liquid, and then a gas. Its temperature is recorded throughout and a g
padilas [110]

Answer:

The answer to your question is: C. The specific latent heat of fusion

Explanation:

A. The specific latent heat of vaporization  Specific latent heat of vaporization indicates the transition from liquid to vapor, but we are not looking for this definition. This answer is wrong.

B. The specific heat indicates the amount of heat needed to increase the temperature of water 1°C, so this answer is wrong.

C. The specific latent heat of fusion . This heat indicate the transition from solid ie to liquid, so this is the right answer.

D. The internal energy measures the energy of the molecules of a substance, so this answer is wrong.

3 0
3 years ago
In the process of making soap, I poured some of the cooked mixture through some muslin fabric, in order to separate the solid pa
lyudmila [28]

Answer:

filtering

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you're pouring the mixture through muslin cloth to keep the particles and bigger peaces out of the soap.

6 0
3 years ago
I NEED HELP ASAP PLEASE
AnnyKZ [126]

One molecule of ammonia is composed of two atoms of nitrogen and three atoms of hydrogen. Option B.

<h3>What is an equation?</h3>

The term chemical equation has to do with the presentation of a chemical reaction on paper in a way that it can be easily understood. It is easy to write an equation to show what is going on in a reaction system.

Now we have the reactions as shown in the question. In this reaction which is the synthesis of ammonia and occurs industrially in the Haber process. The statement that is not true is that; one molecule of ammonia is composed of two atoms of nitrogen and three atoms of hydrogen. Option B.

Learn more about chemical equation:brainly.com/question/28294176

#SPJ1

4 0
2 years ago
Use the information in the tables to determine whether the solution of the salt formed from the given acid + base combinations w
Shkiper50 [21]

Answer:

neutral,

acidic,

basic

4 0
3 years ago
Read 2 more answers
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