Select all true statements to earn the maximum score on this question. Selecting

ID: 849650 • Letter: S

Question

Select all true statements to earn the maximum score on this question. Selecting false statements will decrease your score.

All of the copper in the black product came from the red powder.

All of the oxygen in the black product came from the red powder.

The following is a balanced reaction, and obeys the Law of Conservation of Mass:

2Cu2O + O2 ? 4CuO

Some oxygen was added to the powder as the experiment proceeded.

The following is a balanced reaction, and obeys the Law of Conservation of Mass:

2Cu + O2 ? 2CuO

The red powder was an oxide of copper.

Some copper was added to the powder as the experiment proceeded.

Mass was created as the experiment proceeded.

All of the copper in the black product came from the red powder.

All of the oxygen in the black product came from the red powder.

The following is a balanced reaction, and obeys the Law of Conservation of Mass:

2Cu2O + O2 ? 4CuO

Some oxygen was added to the powder as the experiment proceeded.

The following is a balanced reaction, and obeys the Law of Conservation of Mass:

2Cu + O2 ? 2CuO

The red powder was an oxide of copper.

Some copper was added to the powder as the experiment proceeded.

Mass was created as the experiment proceeded.

All of the copper in the black product came from the red powder.

The following is a balanced reaction, and obeys the Law of Conservation of Mass:

2Cu2O + O2 ? 4Cu

Some oxygen was added to the powder as the experiment proceeded.

The red powder was an oxide of copper.

The following is a balanced reaction, and obeys the Law of Conservation of Mass:

2Cu2O + O2 ? 4Cu

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