All categories

2 years ago

At what temperatures is a reaction that has a positive change in entropy

Chemistry

1 answer:

Setler [38]2 years ago

3 0

Answer:

the answer is A

I made a chart for AP chem if you want to refer to it.

You might be interested in

I NEED THE ANSWER QUICKKK!!!

julsineya [31]

Answer: This is hard to do accurately, but here is my best assessment.

Explanation:

Experiment: B - describes how the experiment was done

Conclusion: A - The data support the prevailing hypothesis

Research: D - This is what we analyzed

Analysis: C - We compared the data

7 0

2 years ago

What do you think could be happening to the sand eels

Alex777 [14]

Answer:

is there like a passage to answer this question?

Explanation:

7 0

2 years ago

Read 2 more answers

How many atoms in the pictured molecule can form hydrogen bonds with water molecules? there is a ball-and-stick model of nh2ch2c

MariettaO [177]

The correct answer would be the third option. There would be two atoms that can form hydrogen bonds with the water molecules from the molecule NH2CH2CH2OH. The atoms O and N could make hydrogen bonds with H. Hydrogen bond is an intermolecular force that is a dipole-dipole interaction between a hydrogen and an atom of O, F and N.

4 0

2 years ago

Albus Dumbledore provides his students with a sample of 19.3 g of sodium sulfate. How many oxygen atoms are in this sample

Dimas [21]

Answer:

3.27·10²³ atoms of O

Explanation:

To figure out the amount of oxygen atoms in this sample, we must first evaluate the sample.

The chemical formula for sodium sulfate is Na₂SO₄, and its molar mass is approximately 142.05 $\frac{g}{mol}$ .

We will use stoichiometry to convert from our mass of Na₂SO₄ to moles of Na₂SO₄, and then from moles of Na₂SO₄ to moles of O using the mole ratio; then finally, we will convert from moles of O to atoms of O using Avogadro's constant.

19.3g Na₂SO₄ · $\frac{1 mol Na^2SO^4}{142.05g Na^2SO^4}$ · $\frac{4 mol O}{1 mol Na^2SO^4}$ · $\frac{6.022x10^2^3}{1 mol O}$

After doing the math for this dimensional analysis, you should get a quantity of approximately 3.27·10²³ atoms of O.

3 0

3 years ago

What happened after the gas syringe was inserted into the flask with the methane gas?

ad-work [718]

When a syringe is inserted into the flask containing methane gas the plunger of the syringe is raise up. This led to filling of the syringe with the gas.This relate to Charles law which explain how gas expand with increase in temperature.

7 0

2 years ago