Chemistry Final Review

Periodic Table

100

# that combines the protons and neutrons of an atom

mass number

200

What tells us the number of protons in an element?

atomic number

300

How many neutrons does Aluminum have?

14 neutrons

400

How many electrons does Bromine have? 

35 electrons

500

sharing electrons to become "happy atoms"

covalent bond

CEMS

100

dirt

MIXTURE

200

Cesium

ELEMENT

300

lemonade

SOLUTION

400

plastic

COMPOUND

500

Acetone (fingernail polish remover)

COMPOUND

Reactions

100

Zn + Cl₂ ---- ZnCl₂

Synthesis

200

2Al₂O₃ ------- 4Al + 3O₂

decomposition

300

What is a physical change you could do with vinegar?

add food coloring, freeze it, boil it...etc.

400

PbNO₃ + KI ------PbI₂ + KNO₃

double replacement

500

What is a chemical property of vinegar?

It reacts with _________. (baking soda or magnesium ribbon)

Writing Chemical Formulas

100

Ca⁺²    Cl^-1

CaCl₂

200

C⁺⁴ O^-2

CO₂

300

Cs⁺¹ SO₄^-2

Cs₂SO₄

400

B⁺³ SO₄^-2

B₂(SO₄)₃

500

Al⁺³ SO₄^-2

Al₂(SO₄)₃

Acids & Bases

100

taste sour and react with metals and carbonates

an acid

200

soaps and cleaners

are bases

300

bitter tasting and does not react with metals or carbonates

a base

400

On the pH scale, acids are ______ and bases are ______.

acids: 0-6

bases: 8-14

500

Acid + Base --------- ?

neutralization