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Verizon [17]
2 years ago
7

Perform the following calculation and report the answer with the correct number of significant figures.

Chemistry
1 answer:
jarptica [38.1K]2 years ago
8 0

Answer:

4.40 X 8.0 =35.2

Explanation:

multiply it

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Why can an increase in temperature lead to more effective collisions between reactant particles and an increase in the rate of a
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An an increase in temperature lead to more effective collisions between reactant particles and an increase in the rate of a chemical reaction because the number of molecules with sufficient energy to react increases. The answer is number 3.

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Write a net ionic equation to show that benzoic acid, C6H5COOH, behaves as a Brønsted-Lowry acid in water.
Nitella [24]

Answer:

H⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq)

Explanation:

According to Brönsted-Lowry acid-base theory, an acid is a substance that donates H⁺. Let's consider the molecular equation showing that benzoic acid is a Brönsted-Lowry acid.

C₆H₅COOH(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The complete ionic equation includes all the ions and molecular species.

C₆H₅COO⁻(aq) + H⁺(aq) + H₂O(l) ⇄ C₆H₅COO⁻(aq) + H₃O⁺(aq)

The net ionic equation includes only the ions that participate in the reaction and the molecular species.

H⁺(aq) + H₂O(l) ⇄ H₃O⁺(aq)

5 0
3 years ago
"Alkenes" ________.are reasonably soluble in water are relatively polar compounds have lower boiling points than alcohols of sim
aleksandr82 [10.1K]

Answer:

The answer to your question is: the third option is correct.

Explanation:

"Alkenes" ________.

are reasonably soluble in water This option is incorrect, alkenes are insoluble in water.

are relatively polar compounds  This option is wrong, alkenes are not polar molecules.

have lower boiling points than alcohols of similar molecular weight This option is true, alkenes have a lower boiling point than alcohols.

both have lower boiling points than alcohols of similar molecular weight and are relatively polar compounds. This option is incorrect because is combining true with false facts.

8 0
3 years ago
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