Metal Reactivity

Question 1

Metal + water ->

Answer 1

Metal hydroxide + hydrogen

Question 2

What are two observations that could be made in metal + water reactions?

Answer 2

Effervescence
Solid disappears

Question 3

More reactive metals can … less reactive metals from their compounds?

Answer 3

Displace

Question 4

Two observations of displacement reactions are?

Answer 4

Solid colour change
Solution colour change

Question 5

Acid + metal ->

Answer 5

Salt + hydrogen

Question 6

A salt is a compound formed when … from an acid?

Answer 6

Hydrogen is displaced

Question 7

What are two observations for an acid + metal reaction?

Answer 7

Metal disappears
There is fizzing

Question 8

The more reactive a metal is, the … it will react with an acid?

Answer 8

The faster

Question 9

What metals are not possible to react an acid with and why?

Answer 9

Gold
Silver
Copper
They are less reactive than hydrogen so can’t displace it

Question 10

What metals are not allowed to react with an acid and why?

Answer 10

Lithium
Sodium
Potassium
Too dangerous

Question 11

What is the chemical test for hydrogen?

Answer 11

Lit splint -> squeaky pop