Chemistry Quiz 1

A quantitative observation

contains a number and a unit

Something done to test a hypothesis that produces new observations is called a(n)

experiment

A __________ is a summary of observed behavior, and a __________ is an explanation of behavior.

law, theory

Generally, observed behavior that can be formulated into a statement, sometimes mathematical in nature, is called a(n)

natural law

The statement "The total mass of materials is not affected by a chemical change in the materials" is called a(n) _____.

natural law

Which of the following is an example of a qualitative observation?

the plant is short

Which of the following is an example of a quantitative observation?

the temperature of the liquid is 60 C

A set of tested hypotheses that gives an overall explanation of some part of nature, is called a(n)

theory

A quantitative observation is called a measurement. Is this statement true or false?

true