Another Unit 1 Review

Question 1

There are no attractions between gas particles.

Accepted Answer

False

Question 2

Which states of matter can flow?

Accepted Answer

gases and liquids only

Question 3

Which of the following processes does NOT involve a change in chemical properties?

Accepted Answer

boiling

Question 4

Which state of matter takes both the shape and volume of its container?

Accepted Answer

both liquid and gas

Question 5

The prefix milli stands for:

Accepted Answer

0.001

Question 6

The weight of an object:

Accepted Answer

depends on its location

Question 7

A solid going to a gas without passing through the liquid state is known as:

Accepted Answer

Sublimation

Question 8

The closeness of a measurement to its true value is a measure of its:

Accepted Answer

accuracy

Question 9

What is the density of an object having a mass of 8.0 g and a volume of 25 cm3 ?

Accepted Answer

0.32 g/cm3

Question 10

Mass is found by:

Accepted Answer

multiplying density by volume

Question 11

As the density of a substance increases, the volume of a given mass of that substance:

Accepted Answer

decreases

Question 12

Which of the following is true about compounds?

Accepted Answer

They are subtances

Question 13

The chief advantage of the metric system over other systems of measurement is that it:

Accepted Answer

is in multiples of 10

Question 14

The diameter of a carbon atom is 0.000 000 000 154 m. Express this in scientific notation.

Accepted Answer

1.54 x 10-10m

Question 15

The expression of 5008 km in scientific notation is:

Accepted Answer

5.008 x 103 km

Question 16

Sucrose is heated and decomposes to form CO2 and H2O, which of the following is a reactant?

Accepted Answer

sucrose

Question 17

Which state of matter is characterized by having indefinite shape, but definite volume?

Accepted Answer

liquid

Question 18

A gas going directly to a solid without passing through the liquid state is known as:

Accepted Answer

Deposition

Question 19

What must occur for a change to be a chemical reaction?

Accepted Answer

There must be a change in chemical properties

Question 20

Which of the following is true for all chemical reactions?

Accepted Answer

Total mass of reactants equals total mass of products

Question 21

Density is found by dividing:

Accepted Answer

mass by volume

Question 22

Which action changes the identity of the substance referenced?

Accepted Answer

corroding iron

Question 23

An actual weight of 2.0 g is weighed on a scale 3 times and found to be 7.32 g. This scale is:

Accepted Answer

precise

Question 24

When a test instrument is calibrated, does its accuracy, precision, or reliability improve?

Accepted Answer

all of the above

Question 25

Which of the following is a chemical property?

Accepted Answer

ability to react with oxygen

Another Unit 1 Review

Questions 25

Another Unit 1 Review

Questions 25