Chemistry Exam 1 Practice Questions
and Answers
_____ do not form Ions - correct answer-Noble Gases
A tentative explanation to an observation is a _______ - correct answer-Hypothesis
The metric unit for volume is - correct answer-cubic meter (m^3)
The metric unit for density is - correct answer-kg/m^3
The conversion factor for meters to micrometers is - correct answer-10^6
micrometers/1m
1m = ____ cm? - correct answer-100 cm
Matter is - correct answer-made up of atoms and molecules
An element is - correct answer-a single type of atom
A molecule is - correct answer-different types of atoms bonded together
Diatomic Molecules are also called - correct answer-Molecular Elements
Diatomic Molecules exist in - correct answer-x^2 form (H2, N2, O2, F2, Cl2, Br2, and I2)
True/False: A gas is compressible - correct answer-True
What state of matter has a fixed volume but changes shape? - correct answer-Liquid
A pure substance has - correct answer-only one type of atom/molecule
A mixture has - correct answer-more than one type of atom/molecule
A homogenous mixture has - correct answer-uniform composition and nonvisible parts
A heterogenous mixture has - correct answer-varying composition and visible parts
Physical properties are - correct answer-characteristics of the substance, does not
depend on quantity/amount
Ex. boiling point, color, density, etc.
and Answers
_____ do not form Ions - correct answer-Noble Gases
A tentative explanation to an observation is a _______ - correct answer-Hypothesis
The metric unit for volume is - correct answer-cubic meter (m^3)
The metric unit for density is - correct answer-kg/m^3
The conversion factor for meters to micrometers is - correct answer-10^6
micrometers/1m
1m = ____ cm? - correct answer-100 cm
Matter is - correct answer-made up of atoms and molecules
An element is - correct answer-a single type of atom
A molecule is - correct answer-different types of atoms bonded together
Diatomic Molecules are also called - correct answer-Molecular Elements
Diatomic Molecules exist in - correct answer-x^2 form (H2, N2, O2, F2, Cl2, Br2, and I2)
True/False: A gas is compressible - correct answer-True
What state of matter has a fixed volume but changes shape? - correct answer-Liquid
A pure substance has - correct answer-only one type of atom/molecule
A mixture has - correct answer-more than one type of atom/molecule
A homogenous mixture has - correct answer-uniform composition and nonvisible parts
A heterogenous mixture has - correct answer-varying composition and visible parts
Physical properties are - correct answer-characteristics of the substance, does not
depend on quantity/amount
Ex. boiling point, color, density, etc.
