QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
VERIFIED
Any substance that occupies space and has mass (weight) is considered:
matter
Which of the following is NOT a physical mixture?
element
If two liquids are mutually soluble, they are considered:
miscible
A(n) _____________ releases a significant amount of heat.
exothermic reaction
In an oxidation-reduction reaction:
oxidation and reduction occur simultaneously
An oxidizing agent:
releases oxygen
A(n) _________ is a chemical combination of two or more atoms in definite (fixed)
proportions.
molecule
A chemical combination of matter in definite (fixed) proportions is called a(n):
pure substance
Volatile organic compounds contain __________ and evaporate very easily.