Unit 2

Question 1

Chemistry

Answer 1

Study of the structure of matter

Question 2

Matter

Answer 2

anything that has weight and occupies space

Question 3

Energy

Answer 3

the ability to work

Question 4

Atoms

Answer 4

a smallest piece of element

Question 5

Protons, Neutrons, Electrons

Answer 5

(+), (Neutral), (-)

Question 6

Protons + Neutrons = ?

Answer 6

Nucleus of atom

Question 7

Isotopes

Answer 7

atoms of the same element that have different # of neutrons

Question 8

Compounds

Answer 8

elements combine by weight

Question 9

Inorganic

Answer 9

do not have carbon

Question 10

Organic

Answer 10

has carbon

Question 11

Chemical Bonds

Answer 11

atoms can share or combine their electrons to form bonds

Question 12

Ionic

Answer 12

one atom transfers electrons to another atom

Question 13

Cation

Answer 13

the atom that loses electrons become positively charged

Question 14

Anion

Answer 14

The atom that gains electrons becomes negatively charged

Question 15

Covalent

Answer 15

Atoms forming bonds are sharing the electron, NOT transferring

Question 16

Hydrogen

Answer 16

helps hold water

Question 17

What are the properties of water?

Answer 17

• Universal Solvent
• Heat Capacity
• Lubricant
• Transport
• Chemical Reactions
  -Allows body to produce energy

Question 18

Acids

Answer 18

release POSITIVELY charged hydrogen ions when dissolved

Question 19

Bases

Answer 19

release NEVATIVELY charged hydrogen ions when dissolved

Question 20

Salts

Answer 20

are formed when acids and bases combine (neutralization)