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spin [16.1K]
2 years ago
12

Which one of the following statements is NOT

Chemistry
2 answers:
Rzqust [24]2 years ago
7 0
1. molecular solids are usually excellent conductors of electric current
Pie2 years ago
4 0

Answer:

1. Molecular solids are usually excellent conductors of electric current.

Explanation:

Molecular solids are actually insulators (prevent electricity).

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Which would increase the amount of dissolved oxygen in a pond
AlexFokin [52]

Answer:

Dissolved oxygen levels are increased by supplementing wind and wave action, adding plants to water and exposing water to purified oxygen. Also removing fish could increase the amount of dissolved oxygen

Explanation:

6 0
3 years ago
A 187.4g sample of C3H5(NO3)3 decomposes to produce carbon dioxide, water, diatomic oxygen, and diatomic nitrogen.
Radda [10]

Answer:

Answer:

Kc = 0.20        

Explanation:

                 N₂O₄     ⇄    2NO₂

moles       5.3mol          2.3mol

Vol               5L                5L

Molarity    5.3/5M        2.3/5M

               = 1.06M     = 0.46M

Kc = [NO₂]²/[N₂O₄] =  (0.46)²/(1.06) = 0.1996 ≅ 0.20

Note:

All credit goes to  <em>drpelezo </em>(Ace) who created and explained the answer.

Have a nice day, and I hope this helps

<em>-kiniwih426</em>

3 0
3 years ago
HZ is a weak acid. An aqueous solution of HZ is prepared by dissolving 0.020 mol of HZ in sufficient water to yield 1.0 L of sol
dlinn [17]

Answer: below is the calculation for Ka

Explanation:

Download pdf
7 0
3 years ago
What is the total number of moles contained in 115g of C2H5OH?
julsineya [31]
2.4962859606272754 moles of C2H5OH
6 0
3 years ago
Summarize the relationship between volume, temperature and pressure (use words like “inversely
Alinara [238K]

Answer:

P and V: inversely proportional

P and T: directly proportional

V and T: inversely proportional

Explanation:

For pressure and volume, as the volume goes up, meaning the container gets bigger, the pressure would go down. There would be more room in the container, so there would be less collisions between the molecules themselves and between the molecules and the container. This makes them inversely proportional.

For pressure and temperature, as the pressure goes up, there are more collisions, so the particles move faster. Temperature is the speed of the particles, so, since both pressure and temperature would go up at the same time, they are directly proportional.

For volume and temperature, this is similar to the PV relationship. As volume increases, there are less collisions between the particles. This means that the particles are going to move slower. Therefore, as volume goes up, temperature goes down, so they are inversely proportional.

Sorry this is super long, but I hope it fully explains the question for you! ☺

4 0
4 years ago
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