Question

Some common substances used in the laboratory are listed in the table. The chemical formulas of the substances are also listed beside their names.

How many of the listed items are elements?

Answer 1

Answer:5

Step-by-step explanation:

5

Copper, sulfur, gold, iron, and aluminum are elements, as their symbols suggest. The other four substances are compound with two elements each.

Answer 2

there are five elements in the table