WGU D425 INTRODUCTION TO CHEMISTRY PA
107 ACTUAL QUESTIONS AND CORRECT
ANSWERS
◉ chemistry.
Answer: the study of matter and how matter changes
◉ element.
Answer: a substance that cannot be broken down into any other
substances by chemical or physical means
◉ molecule.
Answer: a group of two or more atoms held together by chemical
bonds
◉ chemical formula.
Answer: shows the elements in the compound and the ratio of atoms
◉ mixture.
Answer: made of two or more substances in the same place, but
their atoms are not chemically bonded
, ◉ density.
Answer: the ratio of the mass of a substance to its volume
◉ solid.
Answer: has a definite shape and a definite volume
◉ liquid.
Answer: a state of matter that has no definite shape but has a
definite volume
◉ gas.
Answer: a state of matter with no definite shape or volume
◉ surface tension.
Answer: an inward pull among the molecules on the surface in a
liquid
◉ viscosity.
Answer: a liquid's resistance to flowing
◉ pressure.
107 ACTUAL QUESTIONS AND CORRECT
ANSWERS
◉ chemistry.
Answer: the study of matter and how matter changes
◉ element.
Answer: a substance that cannot be broken down into any other
substances by chemical or physical means
◉ molecule.
Answer: a group of two or more atoms held together by chemical
bonds
◉ chemical formula.
Answer: shows the elements in the compound and the ratio of atoms
◉ mixture.
Answer: made of two or more substances in the same place, but
their atoms are not chemically bonded
, ◉ density.
Answer: the ratio of the mass of a substance to its volume
◉ solid.
Answer: has a definite shape and a definite volume
◉ liquid.
Answer: a state of matter that has no definite shape but has a
definite volume
◉ gas.
Answer: a state of matter with no definite shape or volume
◉ surface tension.
Answer: an inward pull among the molecules on the surface in a
liquid
◉ viscosity.
Answer: a liquid's resistance to flowing
◉ pressure.