Chapter 4

Question 1

Matter/ Trace element

Answer 1

Takes up space/ has mass

Trace element= iron

Question 2

Element

Answer 2

Type of matter, everything is made up of it ; cannot be broken down

Question 3

4 Vital Elements of Life are

Answer 3

Carbon, Hydrogen, Oxygen, and Nitrogen

Question 4

Structure of an atom (where are the three placed)

Answer 4

Proton= placed in the nucleus
Neutron= placed in the nucleus
Electron= orbits the nucleus

Question 5

What are the three’s electrical charges

Answer 5

Pro= positive
Neu= neutral
Elec= negative

Question 6

How many bonds do Hydrogen, Carbon, Oxygen, and Nitrogen have each

Answer 6

Hydro= 1 bond
Carbo= 4 bond
Oxy= 2 bond
Nitro= 3 bond

Question 7

Isotope

Answer 7

Changing the numbers of protons(A#). They are useful because they use radioactive things to help you.

Question 8

Ionic/ Covalent

Answer 8

Occurs when atoms transfer electrons

Forms when two atoms share an electron

Question 9

Reactants/ Chemical Reactions

Answer 9

Starting material for a chemical reaction

Material created as a result of Chemical Reaction

Question 10

How to tell the bond number

Answer 10

By using the atomic minus 8

Question 11

Unique properties of water

Answer 11

That electrons are not shared equally between ox/ hydrogen

Question 12

Solutions Aqueous Solutions

Answer 12

Uniform mixture of two or more substances

Solution in which water is the solvent

Question 13

Solvents/ Solutes

Answer 13

Substance in a solution that dissolves substance/ is present in greater amount

Substance in a solution that is dissolved/ is present in lesser amount

Question 14

pH scale

Answer 14

Describes how acidic and basic a solution is

Question 15

Acid/ Base

Answer 15

Compound that donates H+ ions to an aqueous solution

Compound that removes H+ ions from an aqueous solution

Question 16

Neutral Compounds/ Buffers

Answer 16

Having neither acid or basic properties

Substance that causes a solution to resist changes in pH