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vaieri [72.5K]
3 years ago
9

PLEASE HELP!!!! The energy diagram shows the change in energy during a chemical reaction. Which statement best describes the tot

al energy change of the system?
(IMAGE PROVIDED)

Chemistry
2 answers:
eimsori [14]3 years ago
6 0

Answer: B

Explanation:

melamori03 [73]3 years ago
5 0

Answer:

A

Explanation:

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Calculate the volume of a 0.5M solution containing 20g of NaOH
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Answer:

1L

Explanation:

First, let us calculate the number of mole present in 20g of NaOH. This is illustrated below:

Mass = 20g

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Number of mole = Mass /Molar Mass

Number of mole of NaOH = 20/40 = 0.5mol

From the question given, we obtained the following data:

Molarity = 0.5M

Mole = 0.5mole

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