Science Chemistry review

Question 1

Single displacement

Answer 1

A+ BC = AC + B
Notes: In a single displacement reaction involving and ionic compound and a metal. The metal is always replaced in the compound. When and aqueous or when a metal is placed in acid.

Question 2

Double displacement

Answer 2

AB+ CD= AD+ CD
Many double displacements occur between two ionic compounds in aqueous solution.

Question 3

Synthesis

Answer 3

A+ B= AB
(When two reactions make a big one)

Question 4

decomposition

Answer 4

AB= A+B
(when a large or more complex molecules breaks down to form two or more simpler products)

Question 5

Combustion

Answer 5

CxHy (When the c and h are by each other

Question 6

Ionic compounds

Answer 6

• Made up of ions that form changed particles when and atom (or group of atoms gains or loses electrons

Question 7

cations? anion?

Answer 7

+ and -

Question 8

acids? Base?

Answer 8

Acids end in H. Base end in OH

Question 9

What do you use to balance chemicals?

Answer 9

M- metals
I- ions (polytonic ions)
N- non- metals
o- oxygen
H- hydrogen

Question 10

Naming molecular compounds

Answer 10

make first element (don’t criss cross)
-name second element (use ide for the endings)

Question 11

Naming chemicals

Answer 11

Most of the time add Ide ending to second element don’t use ide if it is a polytonic ion. If transition metal you add roman numerals numerals

Question 12

Prefixes

Answer 12

1- Mono
2- di
3-tri
4 - tetra
5- Penta
6- hexa
7- hepta
8- octa
9- nona
10- deca

Question 13

States of subtances

Answer 13

Solid (s)
Liquid(l)
gas(g)
aqueous (aq)

Question 14

you got this

Answer 14

go girl