Question

Copper reacts with oxygen to form copper oxide whose colour is:

1 point

(a) black

(b) white

(c) green

(d) red​

Answer 1

Answer:

black

Explanation:

black copper oxide

Explanations (including important chemical equations):

Heated copper metal reacts with oxygen to form the black copper oxide. The copper oxide can then react with the hydrogen gas to form the copper metal and water.