What properties of a substance determine how that substance will react when combined with other substances?
a. its volume and color
b. its physical properties
c. its mass and density
d. its chemical properties

D. its chemical properties

Explanation:

Chemical property is defined as the property of a substance which becomes evident during chemical change in which a change in chemical composition takes place. A new substance is formed in these reactions. Example: Reactivity of hydrogen with oxygen

Physical property is defined as the property of a substance which becomes evident during physical change in which there is alteration in shape, size etc. No new substance gets formed during physical change. Example: Fusion of ice

Thus property of matter that determine how that substance will react when combined with other substances is its chemical properties.

im pretty sure it is D

Explanation:

this is an old term for a microscopic organisms that included bacteria, protozoans, and very small animals