reactivity series, extracting metals

Question 1

what happens when potassium, sodium or lithium react with water?

Answer 1

They all react very rapidly with water at room temperature, they are very reactive.

Question 2

what happens when calcium reacts with water?

Answer 2

It reacts quite rapidly with water at room temperature, it is fairly reactive.

Question 3

what happens when zinc, iron or copper react with water?

Answer 3

They would all not react with water at room temperature, not very reactive.

Question 4

the reactivity series:

Answer 4

when metals react, they lose electrons and form a positive ion.

Question 5

reactivity:

Answer 5

The reactivity of a metal depends on its ability to lose electrons and form a positive ion.

Question 6

displacement:

Answer 6

A more reactive metal will displace a less reactive metal from its aqueous solution

Question 7

what is oxidation?

Answer 7

Oxidation is the loss of electrons

Question 8

what is reduction?

Answer 8

reduction is the gain of electrons

Question 9

Copper oxide + carbon=?

Answer 9

Copper oxide + carbon —> copper + carbon dioxide

Question 10

Aluminium Sulphide + calcium—>?

Answer 10

Aluminium sulphide + calcium—> calcium sulphide + aluminium

Question 11

Tin + magnesium chloride—>?

Answer 11

Tin+magnesium chloride—> no reaction, tin is less reactive than magnesium so nothing happens