Physical Science Chemistry Review

Question 1

Something with a density of 1.25 g/cm3 will...

Accepted Answer

sink in water

Question 2

Atoms are most stable when they have __ electrons in their outer shell (with a few exceptions).

Accepted Answer

8

Question 3

Water changing from a liquid to a gas is called?

Accepted Answer

evaporation

Question 4

In an neutral atom, the number of __ equals the number of __.

Accepted Answer

protons, electrons

Question 5

Which of the following is not a physical property?

Accepted Answer

combustibility

Question 6

Which of the following subatomic particles has a mass of 1 amu and no charge?

Accepted Answer

neutron

Question 7

The density of an object with a volume of 4 mL and a mass of 8g is:

Accepted Answer

2 g / mL

Question 8

Which of the following best represents the Lewis Dot structure for a Calcium ion?

Accepted Answer

Ca2+

Question 9

Matter is anything that has ___ and ___.

Accepted Answer

mass, volume

Question 10

This process results in the formation of a new substance and is typically irreversible.

Accepted Answer

chemical change

Question 11

A lithium ion will most likely ____ to form an ion.

Accepted Answer

lose one electron

Question 12

The space between particles in a gas can best be characterized as?

Accepted Answer

lots of space to move around

Question 13

When an ionic bond forms between Na and Cl,

Accepted Answer

all of these are correct

Question 14

The atomic number tells us the number of ____ in an atom.

Accepted Answer

protons and electrons

Question 15

All of the following are indicators that a chemical change has occurred EXCEPT

Accepted Answer

phase change (solid to gas)

Question 16

A substance with no fixed volume or shape would be a __.

Accepted Answer

gas

Question 17

Which of the following is not a physical property of matter?

Accepted Answer

reactivity

Question 18

Chlorine is most likely to ___ electrons and become a(n) ___.

Accepted Answer

gain; anion

Question 19

An ionic bond is formed by ____ electrons.

Accepted Answer

transferring

Question 20

The units of density are?

Accepted Answer

g/cm3

Question 21

Which family has 7 valence electrons?

Accepted Answer

halogens

Question 22

A covalent bond will form between

Accepted Answer

two nonmetals

Questions 22