__________ is a form of matter that has constant composition and properties that are constant throughout the sample.
A. Compound
B. Element
C. Mixture
D. Pure Substance
D
It is composed of only one type of an atom.
A. Compound
B. Element
C. Mixture
D. Pure Substance
B
It is composed of two or more types of atom that are chemically bonded.
A. Compound
B. Element
C. Mixture
D. Pure Substance
A
Which of the following substances is an element?
A. Air
B. Salt
C. Hydrogen
D. Sugar
C
It is the compound commonly found in your kitchen.
A. Ammonia
B. Calcium Carbide
C. Hydrogen Peroxide
D. Sugar
D