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Dahasolnce [82]
3 years ago
11

Consider the following reactions. (Note: (s) = solid, (l) = liquid, and (g) = gas.)

Chemistry
2 answers:
Lelu [443]3 years ago
8 0

Answer:

Increase

Explanation:

A reaction can be exothermic or endothermic. An exothermic reaction, the heat flows from the system, means the system is losing heat, so the temperature of the system decreases and the temperature of the surroundings increases.

In an endothermic reaction, the heat flows to the system, so it's gain heat, the temperature of the system increase and the temperature of the surroundings decreases.

The enthalpy (H) is a measure of this heat, so for an exothermic reaction, it must decrease (because the system loses heat) and the variation ΔH must be negative. For an endothermic reaction, the opposite must occurs.

Then the reaction given is exothermic, the system loses heat and the temperature of the surroundings increase.

aalyn [17]3 years ago
6 0
Increase because the reaction is exothermic

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Answer:

Answer is c.

Explanation:

when you mix sugar with water,the sugar dissolves to make a transparent solution.

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The low-resolution mass spectrum of an unknown analgesic X had a molecular ion of 151. Possible molecular formulas include C7H5N
garik1379 [7]

Answer:

The molecular formula of X is C8H9NO2

Explanation:

Step 1: Data given

exact mass of 151.0640

Molar mass of C = 12 g/mol

Molar mass of H = 1.00783 g/mol

Molar mass of O = 15.9949 g/mol

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Step 2: Calculate molar mass of C7H5NO3

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Step 3: Calculate molar mass of C8H9NO2

8*12 + 9*1.00783 + 14.0031 + 2*15.9949 = 151.06337 g/mol

Step 4: Calculate molar mass of C10H17N

10*12 + 17*1.00783 + 14.0031 = 151.13621 g/mol

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3 years ago
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6 0
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jok3333 [9.3K]

Answer:

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Explanation:

Since I cannot see the product's of the second chemical equation I will only solve the first one.

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Hope this helps.

4 0
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3 years ago
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