Patterns Of Reactivity

Question 1

Can you put copper,iron and magnesium in order of reactivity

Answer 1

Magnesium,Iron,Copper

Question 2

Magnesium+Oxygen

Answer 2

Magnesium oxide

Question 3

Irons+Oxygen

Answer 3

Iron Oxide

Question 4

Copper+Oxygen

Answer 4

Copper Oxide

Question 5

Why are lithium,sodium and potassium stored under oil in their jars

Answer 5

Could react with moisture in the air

Question 6

Calcium+water

Answer 6

Calcium hydroxide+hydrogen

Question 7

Magnesium+water

Answer 7

Magnesium hydroxide+hydrogen

Question 8

Copper+water

Answer 8

Nothing

Question 9

List the metals in order of reactivity

Answer 9

Potassium,Sodium,lithium,calcium,magnesium,iron,copper

Question 10

Aluminium+water

Answer 10

Nothing

Question 11

Aluminium+dilute acid

Answer 11

Disintegrate

Question 12

What is the word equation for potassium+water

Answer 12

Potassium+water->Potassium hydroxide

Question 13

Write a word equation for magnesium and water

Answer 13

Magnesium+water->Magnesium hydroxide+hydrogen

Question 14

What is the best way to prevent rust from a gate

Answer 14

Paint

Question 15

What is the best way to prevent rust from a hull of the ship

Answer 15

Sacrificial protection

Question 16

What is the best way to prevent rust from machinery

Answer 16

Oiling

Question 17

What is the best way to prevent rust from iron nails

Answer 17

Galvanise