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ozzi
3 years ago
8

Identify the variables in this hypothesis. If the pressure of a gas is increased, then the volume will decrease because the part

icles of the gas will be forced closer together. The independent variable is_____ . The dependent variable is_______
Chemistry
2 answers:
Kaylis [27]3 years ago
7 0
Volume<span> of matter </span>decreases<span> under </span>pressure<span> ... -under </span>pressure<span>, the </span>particles<span> in a </span>gas<span> are </span>forced closer together<span> ... </span>factors<span> affecting </span>gas pressure<span> ... -</span>if pressure<span> in a sealed container is </span>lower than<span> outside, </span>gas will<span> rush in ...</span>
777dan777 [17]3 years ago
6 0

The independent variable is PRESSURE.

The dependent variable is VOLUME.

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In the test for Cl1- and SO4 2- , explain why the addition of acid will dissolve or decompose other silver salts and barium salt
myrzilka [38]

Strong acids can dissolve the salts of weak acid. When we consider the different salts of silver:

Salts of silver with the conjugate bases of a weak acid are soluble in strong acidic solutions. Some of these salts are:

2Ag^{+}(aq)+CO_{3}^{2-}(aq) --->Ag_{2}CO_{3}(s)

Ag^{+}(aq)+C_{2}H_{3}O_{2}^{-}(aq)-->AgC_{2}H_{3}O_{2}(aq)

2Ag^{+}(aq)+SO_{3}^{2-}(aq) --->Ag_{2}SO_{3}(s)

Salts of silver with the conjugate bases of a strong acid are not affected by change in pH:

Ag^{+}(aq)+Cl^{-}(aq) --->AgCl(s)

2Ag^{+}(aq)+SO_{4}^{2-}(aq) --->Ag_{2}SO_{4}(s)

These two salts with Chloride and sulfate ions are not soluble in acidic solutions as the salts of silver with the conjugate bases of a strong acid are not soluble in acidic solutions, they remain unaffected by any change in pH.

So for salts of Ag and Ba with the conjugate bases of a weak acid, solubility is increased upon the addition of an acid. So, the interference from the ions of weak acids can be removed by decreasing the pH.

3 0
3 years ago
What is the density of nitrogen gas at 356.4 K?
Ugo [173]

Answer:

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Explanation:

:)

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2 years ago
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Answer:

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Explanation:

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3 years ago
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