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krek1111 [17]
3 years ago
7

What do the results tell you about your hypothesis(es)? How do the data support your claim above?

Chemistry
1 answer:
Oliga [24]3 years ago
8 0

Answer: It tells you if your hyposthesis was incorrect or correct from the data. The data supports this because you tested and got your results correctly which will help you to form a hypothesis.

Explanation:

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Please review the attachment
astra-53 [7]

Answer: The correct answer is -297 kJ.

Explanation:

To solve this problem, we want to modify each of the equations given to get the equation at the bottom of the photo. To do this, we realize that we need SO2 on the right side of the equation (as a product). This lets us know that we must reverse the first equation. This gives us:

2SO3 —> O2 + 2SO2 (196 kJ)

Remember that we take the opposite of the enthalpy change (reverse the sign) when we reverse the equation.

Now, both equations have double the coefficients that we would like (for example, there is 2S in the second equation when we need only S). This means we should multiply each equation (and their enthalpy changes) by 1/2. This gives us:

SO3 —>1/2O2 + SO2 (98 kJ)

S + 3/2O2 —> SO3 (-395 kJ)

Now, we add the two equations together. Notice that the SO3 in the reactants in the first equation and the SO3 in the products of the second equation cancel. Also note that O2 is present on both sides of the equation, so we must subtract 3/2 - 1/2, giving us a net 1O2 on the left side of the equation.

S + O2 —> SO2

Now, we must add the enthalpies together to get our final answer.

-395 kJ + 98 kJ = -297 kJ

Hope this helps!

8 0
3 years ago
Read 2 more answers
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My name is Ann [436]

Answer:

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5, 4, 1, 3, 2

Explanation:

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3 years ago
Which of the following is the method that incorporates designing sustainable living environments with agriculture?
sergey [27]

Answer:

what are the answers?????????

8 0
3 years ago
What are hydroxyl groups and what happens to them when molecules combine?
Sloan [31]
Hi! Chemistry is complicated, right?

A hydroxyl group is a group that consists of
oxygen and hydrogen bonds. When they combine, ethanol may be released.

I hope I helped!
5 0
3 years ago
The diagram below shows a group of water molecules.
Natali5045456 [20]

Just took it, Hydrogen bonds

8 0
3 years ago
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