Chemical Reactions

Question 1

What happens when a metal reacts with oxygen

Answer 1

metal oxide

Question 2

What is gaining oxygen called

Answer 2

Oxidation

Question 3

What is losing oxygen called

Answer 3

Reduction reaction

Question 4

What reacts with hydrogen

Answer 4

Copper

Question 5

What reacts with carbon

Answer 5

Zinc

Iron

Question 6

What happens when metals reacts

Answer 6

They lose electrons and from a positive ion

Question 7

Extraction of metals

Answer 7

A more reactive element will push out/displace a less reactive element from its compound

Question 8

Oxidisation (electrons)

Answer 8

Loss of electrons

Question 9

Reduction (electrons)

Answer 9

Gain of electrons

Question 10

O I L

R I G

What does it stand for

Answer 10

Oxidation is loss (of electrons)

Reduction is gain (of electrons)

Question 11

Bases

Answer 11

Bases are chemicals which can neutralise acids

Acid + base = salt + water

Soluble in water

Called alkali

Question 12

Magnesium reacting with acid

Answer 12

Rapidly reacts with acids

Question 13

Iron reacting with acid

Answer 13

Fairly slowly with acids

Question 14

Salts

Answer 14

Contain positive ion which come from the base or alkali

Also contain negative ions which comes from acid

Question 15

Nitric

Answer 15

Nitrate

Question 16

Sulphuric

Answer 16

Sulphate

Question 17

Acids produce _____________ ions in _______________ solution

Answer 17

Hydrogen ions in aqueous solution