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3 years ago

Help me answer this chemistry question. thank you!

Chemistry

1 answer:

Vladimir79 [104]3 years ago

8 0

Answer:

Chlorine and bromine

Explanation:

I think thats the answer in your question

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Using at least one complete sentence, identify what might be one problem with using nonrenewable resources?

horrorfan [7]

Non-renewable resources, such as coal, produce harmful gasses, such as carbon monoxide, polluting the air and decreasing air quality.

4 0

3 years ago

8. At higher temperatures _______.

DanielleElmas [232]

Answer:

B. particles in an object move faster

Explanation:

At higher temperatures, particles in an object moves faster.

Temperature is the degree of hotness or coldness of a body.

At higher temperature, the substance is very hot.
Temperature is related to the heat energy content of a body
As the temperature increases, the average kinetic energy of the particles of system increases more and more.
This is in compliance with the kinetic molecular theory of matter.
Therefore, at higher temperatures, particles in an object move faster.

8 0

3 years ago

A Questic

Ivanshal [37]

Answer:

No, it is not feasible because the Gibbs free energy change is positive

Explanation:

∆Hreaction= (-602 KJ/mol) - (-348 KJ/mol) = -254 KJ/mol

∆Sreaction = (42 + 27) J/Kmol - (33 + 44) J/K = -8J/Kmol

From;

∆G = ∆H - T∆S

∆G = 254 × 10^3 J/mol - [340K × (-8 J/Kmol)]

∆G = 2.57 × 10^5 J/mol

Note that when the change in free energy is positive, a reaction is non spontaneous. Only a reaction that has a negative change in free energy is spontaneous.

3 0

3 years ago

Which of the following states of matter occurs at the highest temperature?

Aleks [24]

The answer is C. Plasma.

7 0

4 years ago

Read 2 more answers

Calculate the pH of a buffer solution created by reacting 100 mL of 0.1 M NH3 with 90 mL of 0.1 M HNO3. (Remember, you can find

algol13

This question is asking for the pH of a buffer solution between ammonia and nitric acid, with given volumes and concentrations. At the end, the result turns out to be 10.488.

<h3>Buffers</h3>

In chemistry, buffers are known as substances attempting to hold a relatively constant pH by mixing and acid and a base (weak and strong). In such a way, for the substances given, the first step will be to calculate the consumed moles as they are mixed:

$n_{NH_3}=0.1L*0.1mol/L=0.01mol\\\\n_{HNO_3}=0.09L*0.1mol/L=0.009mol$

Now, since ammonia is in a greater proportion, one can calculate how much of it is left after being consumed by the nitric acid:

$n_{NH_3}^{left}=0.01mol-0.009mol=0.001mol$