Chemistry

Question 1

What is all matter composed of?

Answer 1

All matter is composed of atoms.

Question 2

What is a metal and non-metal compound called?

Answer 2

An ionic compound

Question 3

How do you name an ionic compound?

Answer 3

No prefixes and have an -ide ending

Question 4

What do you put for transition metals when naming them?

Answer 4

Their charge number in brackets. E.g Iron (II) + Oxygen = Fe (II)O

Question 5

What is a non-metal and non-metal compound called?

Answer 5

A covalent bond

Question 6

How do you name a covalent compound?

Answer 6

Use Greek prefixes

Question 7

What is the rule for naming the first element in a covalent compound ?

Answer 7

Don’t use mono- for the first element prefix

Question 8

Name the prefixes in order

Answer 8

Mono=1
Di=2
Tri=3
Tetra=4
Penta=5
Hexa=6
Septa=7
Octa=8
Nona=9
Deca=10

Question 9

How do you name polyatomic compounds?

Answer 9

Cation first, then anion.

Question 10

What does a metal + non-metal make?

Answer 10

Salt

Question 11

Acid + Carbonate?

Answer 11

Salt, CO2 and Water

Question 12

Acid + Base

Answer 12

Salt+H2O

Question 13

Acid + Metal

Answer 13

Salt + Hydrogen gas

Question 14

Ammonium

Answer 14

NH4 (1+)

Question 15

Acetate

Answer 15

CH3COO (1-)

Question 16

Nitrite

Answer 16

NO2 (1-)

Question 17

Nitrate

Answer 17

NO3 (1-)

Question 18

Hydroxide

Answer 18

OH (1-)

Question 19

Bicarbonate

Answer 19

HCO3 (1-)

Question 20

Cyanide

Answer 20

CN (1-)

Question 21

Chlorate

Answer 21

ClO3 (1-)

Question 22

Carbonate

Answer 22

CO3 (2-)

Question 23

Sulfate

Answer 23

SO4 (2-)

Question 24

Sulfite

Answer 24

SO3 (2-)

Question 25

Chromate

Answer 25

CrO4 (2-)

Question 26

Phosphate

Answer 26

PO4 (3-)

Question 27

Phosphite

Answer 27

PO3 (3-)

Question 28

Ammonium

Answer 28

NH4 (1+)

Question 29

HCl

Answer 29

Hydrochloric acid

Question 30

H2SO4

Answer 30

Sulphuric acid

Question 31

H3PO4

Answer 31

Phosphoric acid

Question 32

HCH3COO

Answer 32

Acetic acid

Question 33

HNO3

Answer 33

Nitric acid

Question 34

H2CO3

Answer 34

Carbonic acid

Question 35

What cations are soluble?

Answer 35

Group 1A cations

Question 36

What polyatomic ions are soluble and have no exceptions?

Answer 36

Nitrate, chlorate, acetate, perchlorate.

Question 37

What anions are soluble?

Answer 37

Chlorine, bromine, iodine.

Question 38

What are the exceptions to the soluble anions? (Halogens)

Answer 38

Halides of Ag-, Hg2+, Pb2+

Question 39

What anion is insoluble?

Answer 39

Sulfur

Question 40

What is the exception to the insoluble anion?

Answer 40

Sulfides of Group 1A cations, ammonium, calcium, strontium, barium.

Question 41

What is the exception to the insolubility of CO3 (2-)?

Answer 41

Carbonates of group 1A cations and NH4 (1+)

Question 42

What is the exception to the insolubility of OH-?

Answer 42

Hydroxides of Group 1A, ammonium, calcium, strontium, barium.

Question 43

What is the exception to the insolubility of PO4 (3-)?

Answer 43

Phosphates of Group 1A cations and ammonium.

Question 44

How do acids work?

Answer 44

Hydrogen donates a proton to a receiver, making it an acid.

Question 45

How do you detect CO2 gas?

Answer 45

Conducting the lime water test.

Question 46

How do you detect hydrogen gas?

Answer 46

Conducting the pop test.

Question 47

What does a Lewis Dot Diagram represent?

Answer 47

It depicts the valence electrons of an atom. Openings show where electrons can be gained or shared. X’s show where electrons are shared.

Question 48

How do covalent bonds conjoin?

Answer 48

They share electrons with fellow elements.

Question 49

How do ionic bonds conjoin?

Answer 49

They either donate or receive electrons.

Question 50

How do metallic bonds conjoin?

Answer 50

It contains a sea of delocalised electrons.

Question 51

How do you balance a chemical equation?

Answer 51

Make sure the same number of atoms are on each side. E.g. _H2 + _O2 = _H + 18O