Lab: Types of Reactions

Question 1

Select question adf57b99

Revolt · Accepted Answer

reactants; Selection 1: reactants; Selection 2: products; Selection 3: balanced chemical equation; Selection 4: classify the reaction

Question 2

Which of the following best explains why you sanded the copper wire before burning it?

Revolt · Accepted Answer

to make sure that copper metal was exposed on the surface of the wire

Question 3

Check all of the reasons that you included in your answer.Copper oxide is the only product, and it contains copper and oxygen.One of the reactants is copper, so the other reactant must be oxygen.The copper metal must have combined with something in the air.

Revolt · Accepted Answer

Copper oxide is the only product, and it contains copper and oxygen.; One of the reactants is copper, so the other reactant must be oxygen.; The copper metal must have combined with something in the air.

Question 4

H2(g)

Revolt · Accepted Answer

1

Question 5

What signs of a chemical reaction did you observe during the lab? Check all that apply.

Revolt · Accepted Answer

color change; formation of a gas; formation of a solid

Lab: Types of Reactions Answers

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