Materials and structure

Question 1

What is compound.

Answer 1

A substance made of two or more different types of atoms bonded together

Question 2

What is the formulae of calcium oxide

Answer 2

CaO

Question 3

Formulae of carbon dioxide

Answer 3

CO2

Question 4

Formulae of carbon monoxide

Answer 4

CO

Question 5

Formulae of hydrogen sulfide

Answer 5

H2S

Question 6

Formulae of calcium Carbonate

Answer 6

CaCO

Question 7

Formulae of sodium hydroxide

Answer 7

NaOH

Question 8

What is the name for the compound LiOH

Answer 8

Lithium hydroxide

Question 9

How many different elements are combined in LiOH

Answer 9

Three

Question 10

What is a mixture

Answer 10

A substance that contains two or more elements or two or more compounds that are not chemically bonded

Question 11

What compounds and elements are in the air

Answer 11

Nitrogen,carbon dioxide,Argon,water vapour,oxygen and other gases

Question 12

what come first if compound contain a metal and non metal

Answer 12

Metal name come first eg. NaCl Sodium chloride

Question 13

if compound contain a metal and non metal, whose name get changed

Answer 13

Non metal name get changed eg. NaCl Sodium chloride

Question 14

when two elements form a compound , what the name of compound ends with?

Answer 14

ide

Question 15

what the compound name ends with , when compound contain two elements and plus Oxygen atom

Answer 15

ate eg. CaCO3 Calcium carbonate

Question 16

Di means

Answer 16

2 atoms

Question 17

Mono means

Answer 17

1 atom

Question 18

Which 3 elements are combined in calcium nitrate

Answer 18

Calcium nitrogen and oxygen Ca(NO3)2