Chapter 2 Chemistry

Question 1

Anything that has mass and occupies space

Answer 1

Matter

Question 2

3 states of matter

Answer 2

Solid, liquid & gas

Question 3

Capacity to do work or put matter into motion

Answer 3

Energy

Question 4

Energy in action

Answer 4

Kinetic energy

Question 5

Stored energy

Answer 5

Potential energy

Question 6

Substances that cannot be broken down into simpler substances by ordinary chemical methods

Answer 6

Elements

Question 7

4 elements that make up 96% of the body

Answer 7

Carbon, hydrogen, oxygen, nitrogen

Question 8

Alter in bonds of chemical substances

Answer 8

Chemical energy

Question 9

Results from movement of charger particles

Answer 9

Electrical energy

Question 10

Directly involved in moving matter

Answer 10

Mechanical energy

Question 11

Travels in waves

Answer 11

Radiant or electromagnetic energy

Question 12

What makes up the atomic nucleus?

Answer 12

Protons and neutrons

Question 13

amu

Answer 13

Atomic mass unit

Question 14

Atoms like to fill their valance shell

Answer 14

Octet rule

Question 15

One or two letter chemical shorthand for each element

Answer 15

Atomic symbol

Question 16

Positive

Answer 16

Protons

Question 17

Neutral

Answer 17

Neutrons

Question 18

Negative

Answer 18

Electrons

Question 19

What do protons attract?

Answer 19

Electrons

Question 20

The sun of the protons and neutrons

Answer 20

Mass number

Question 21

What is a of atom that has same protons and electrons but different number of electrons?

Answer 21

Isotope

Question 22

What is an average of the weights of all the isotopes of an element?

Answer 22

Atomic weight

Question 23

What are isotopes that decompose to more table forms?

Answer 23

Radioisotopes

Question 24

What is a substance composed of two or more different elements, the atoms of which are chemically united?

Answer 24

Compound

Question 25

What is the number of miles of solute per liter or solvent? (Also known as avogadro’s number)

Answer 25

Molarity

Question 26

A mixture in which the solute particles are not evenly distributed throughout the mixture. Ex: jello (sol-gel)

Answer 26

Colloid

Question 27

Mixtures that contain large, visible solutes that do not settle out Ex: water & sand

Answer 27

Suspensions

Question 28

Energy relationships

Answer 28

Chemical bonds

Question 29

This shell holds 2 electrons

Answer 29

Shell 1

Question 30

These shells hold a max of 8 electrons

Answer 30

Shells 2 & 3

Question 31

The outermost shell is also called what?

Answer 31

Valence shell

Question 32

What ions are aroma that have gained or lost electrons and become charged?

Answer 32

Ionic bonds

Question 33

An atom that gained one or more electrons.

Answer 33

Anion

Question 34

An atom that lost one or more electrons

Answer 34

Cation

Question 35

Sharing of electrons

Answer 35

Covalent bonding

Question 36

Unequal sharing

Answer 36

Polar

Question 37

Equal sharing

Answer 37

Nonpolar