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ASHA 777 [7]
3 years ago
10

During a reaction, H for reactants is -750 kJ/mol and H for products is 920 kJ/mol. Which statement is correct about the reactio

n and correctly compares the energy in bonds?

Chemistry
1 answer:
vagabundo [1.1K]3 years ago
8 0

Answer:

a

Explanation:

the ones are stronger and herder to break so it will take more energy to break them then when they are made

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<h3>Given:</h3>

M₁ = 2.0 mol/L

V₁ = 1 L

M₂ = 0.1 mol/L

<h3>Required:</h3>

V₂

<h3>Solution:</h3>

M₁V₁ = M₂V₂

V₂ = M₁V₁ / M₂

V₂ = (2.0 mol/L)(1 L) / (0.1 L)

<u>V₂ = 20 L</u>

Therefore, the volume of the new solution will be 20 L.

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The spectrophotometer really measures the percent of light that is transmitted through the solution. The instrument then convert
Fantom [35]

Hey there!:

absorbance = log 100 - log Transmitance

absorbace = 0.85

log 100 = 2

- log transmitance = absorbace / log 100

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4 0
3 years ago
A container of gas has a volume of 3.5 L and a pressure of 0.8 atm. Assuming the temperature remains constant, what volume of ga
vovikov84 [41]
<h3>Answer:</h3>

5.6 L

<h3>Explanation:</h3>

We are given;

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We are required to calculate the final volume;

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  • That is; P α 1/V
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In this case;

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V2 = P1V1 ÷ P2

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7 0
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In a reaction that occurs in solution, the volume will not change. What happens to the concentration of the reactants? What happ
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Answer:

the reaction will increase

Explanation:

6 0
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Which of following statements is true about scientific knowledge? Scientific ideas are not subject to change, so scientific know
Romashka [77]

Answer:

The accepted views of science knowledge can change over time. Changes can result from new science observations, but can also be affected by social, political or religious convictions. To develop a deeper understanding, students need to investigate the context of the time in which science ideas were developed.

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