Observe Record observations of the reaction and products in the data table.

The copper burned in the presence of another substance to form the dark coating on the wire.
What was that other reactant?

✓ oxygen gas

Analyze
Complete the balanced chemical equation in the data table. Then, determine the type of reaction

✓ combustion (and synthesis)

✓ Copper oxide

formed on the copper wire.

Edge 2020

copper , single replacement, zinc sulfate

Explanation:

These are all the answers

1. oxygen gas

2. combustion (and synthesis)

3. copper oxide

Explanation: 2020

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e