Chapter 2 - Chemistry and Measurements

Physical amounts

________ in science are described in units of the metric or international units system (SI)

definition

An accurate number is obtained by counting items or from a(n) ________.

Zeros

________ are not significant before the decimal number or at the end of the non- decimal number.

identical volume

The relationship between two units, measuring ________, length, weight, or time, shows equal equality.

conversion factors

To express a relation in a fraction, ________ are used for any relationship in the metric or in the US system, two ________ may be written.