Chemical changes

Question 1

What is the most reactive element in the reactivity series

Answer 1

Potassium

Question 2

What is the least reactive element in the reactivity series

Answer 2

Gold

Question 3

Name all the elements in the order of reactivity from most reactive to least reactive

Answer 3

Potassium 
Sodium
Lithium
Calcium
Magnesium
Aluminium 
Zinc
Iron 
Tin
Lead
Copper
Silver 
Gold

Question 4

What does a more reactive metal do to a less reactive metal in a reaction

Answer 4

It displaces it

Question 5

What are the products of

Metal + Acid -> ? + ?

Answer 5

Metal + Acid -> Salt + Hydrogen

Question 6

When making a salt, does the metal have to be below or above hydrogen in the reactivity series?

Answer 6

Above

Question 7

Fill in the blanks

Acid + Base -> ?

Answer 7

Acid + Base -> Salt + Water

Question 8

Fill in the blanks

Acid + Alkali -> ?

Answer 8

Acid +Alkali -> Salt + Water

Question 9

Fill in the blanks

Acid + Carbonate -> ?

Answer 9

Acid + Carbonate -> Salt + Water + Carbon Dioxide

Question 10

How do you calculate the concentration of a solution in mol/dm3