Zumdahl Ch 1

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

• The piece of metal is longer than the piece of wood.

• Solution 1 is much darker than solution 2.

• The liquid in beaker A is blue.

• The temperature of the liquid is 60ºC.

• At least two of these are quantitative observations.

A quantitative observation

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

• observation

• measurement

• theory

• natural law

• experiment

The statement “The total mass of materials is not affected by a chemical change in those materials” is called a(n)

• observation

• measurement

• theory

• natural law

• experiment

A chemical theory that has been known for a long time becomes a law.

• True

• False

Which of the following metric relationships is incorrect?

• 1 microliter = 10^-6 liters

• 1 gram = 10^3 kilograms

• 10^3 milliliters = 1 liter

• 1 gram = 10^2 centigrams

• 10 decimeters = 1 meter

For which pair is the SI prefix not matched correctly with its meaning?

• tera = 10^12

• centi = 0.01

• kilo = 1000

• pico = 10^-12

• deci = 10

A metric unit for length is

• gram

• meter

• liter

• second

Which of the following is not a unit in the SI system?

• ampere

• candela

• Kelvin

• meter

• calorie

Order the four metric prefixes from smallest to largest.

• nano- < milli- < centi- < deka-

• milli- < nano- < centi- < deka-

• deka- < centi- < nano- < milli-

• deka- < centi- < milli- < nano-

• centi- < nano- < deka- < milli-