Question

17. Physical properties of a material include all but ________________.

a. the boiling point c. the reactivity of a metal
b. the density d. color
18. A mixture is defined as _________________.
a. combination of two materials each keeping their own characteristics
b. any pure substance with consistent characteristics
c. combination of two materials that become something different from the parts
d. a single element with no difference from their parts

Answer 1

17)c: the reactivity of a metal.

Step-by-step explanation: