3 years ago

What effect does the speed of molecules have on matter?.

1 answer:

4 0

Answer:

An increase in the speed of the molecules competes with the attraction between molecules and causes molecules to move a little further apart. Cooling a liquid decreases the speed of the molecules.

Explanation:

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Substance/Specific heat capacity

nikdorinn [45]

I believe it is aluminum
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8 0

3 years ago

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The value for Kw is 1.0 x 10-14 at 298K, but this value is temperature dependent. Given what you know about Kw and acid/base che

ankoles [38]

Answer:

6.92; neutral

Explanation:

Kw = [H^+][OH^-] = 1.47 × 10^-14

pKw = pH + pOH = 13.83

At neutrality, [H^+] = [OH^-] and pH = pOH

2pH = 13.83

pH = 6.92

The pH will be 6.92.

At 303 K, this will be the neutral pH, because [H^+] = [OH^-]

8 0

4 years ago

Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.

Andru [333]

Answer:

${ \rm{2\: moles \: of \: sodium \: chlorate = 2 \: moles \: of \: sodium \: choride}} \\ { \rm{10 \: moles \: of \: sodium \: chlorate = ( \frac{10}{2} \times 2) \: moles}} \\ \\ = { \boxed{ \rm{ \: 10 \: moles \: of \: sodium \: chloride}}} \\$