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FOUR CHEMISTRY PROBLEMS PLEASE HELp please

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1.

Which
reaction did you perform in the hands-on activity? Describe the
chemical combination that you investigated. Also describe any
observations from the investigation, including the temperature change of
the container. (5 points)

2.

Which
reaction did you perform in the hands-on activity? Based on your
observations, was the reaction endothermic or exothermic? Explain your
answer in complete sentences. (5 points)

3.

Compare
endothermic and exothermic reactions in terms of potential energy, heat
flow, and observed temperature changes. Explain your answer in complete
sentences. (5 points)

1.

Which
reaction did you perform in the hands-on activity? Describe the
chemical combination that you investigated. Also describe any
observations from the investigation, including the temperature change of
the container. (5 points)

2.

Which
reaction did you perform in the hands-on activity? Based on your
observations, was the reaction endothermic or exothermic? Explain your
answer in complete sentences. (5 points)

3.

Compare
endothermic and exothermic reactions in terms of potential energy, heat
flow, and observed temperature changes. Explain your answer in complete
sentences. (5 points)

4.

A

match must be struck against an object to produce a spark to start the

burning process. Once the match starts burning, it releases a large

amount of energy. Describe, in detail, what the potential energy diagram

would look like for the burning of a match, and explain how each part

of the diagram relates to the process described above. (5 points)

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