Determine which type of property each statement describes by typing “physical” or “chemical” in the blank.

Question

Hydrogen is a colorless, tasteless, and odorless gas.

Hydrogen is very combustible in the presence of oxygen.

Hydrogen is very reactive with most elements.

Hydrogen is the least dense of all elements

Answer 1

1. Hydrogen is a colorless, tasteless, and odorless gas. (physical)

2. Hydrogen is very combustible in the presence of oxygen. (chemical)

3. Hydrogen is very reactive with most elements. (chemical)

4. Hydrogen is the least dense of all elements. (physical)