52-53: Metals Reacting with Water (Foundation)

Question 1

Does copper react with water?

Answer 1

No, it is too unreactive

Question 2

Does Magnesium react to water?

Answer 2

Yes.

Question 3

How do you know Magnesium is reacting with water?

Answer 3

The Magnesium gets little tiny bubbles of hydrogen gas on it.

Question 4

What gas is made when magnesium reacts with water?

Answer 4

Hydrogen gas

Question 5

Why do you think the magnesium reaction is faster in steam than in cold water?

Answer 5

Because increasing the temperature allows chemical reactions to happen quicker

Question 6

What TWO substances are made in the reaction between magnesium and steam (chemical reaction)?

Answer 6

Hydrogen and Magnesium Oxide.

Question 7

Does sodium react with cold water?

Answer 7

Yes

Question 8

What does the reaction between Sodium and Cold water produce?

Answer 8

Sodium Hydroxide and Hydrogen gas

Question 9

Why do we store sodium in oil?

Answer 9

Because Sodium will react with the water vapor in the air.

Question 10

Why must you never pick up sodium with bare hands?

Answer 10

Because the moisture from your hands can cause a reaction.

Question 11

Which metal is more reactive: copper or sodium?

Answer 11

Sodium.

Question 12

Which metal is more reactive: magnesium or sodium?

Answer 12

Sodium

Question 13

Put these three metals in order from most to least reactive

: copper,magnesium and sodium.

Answer 13

Sodium
Magnesium
Copper

Question 14

sodium + water –>

Answer 14

sodium hydroxide + hydrogen

Question 15

What type of water does Magnesium react slowly with?

Answer 15

cold.

Question 16

Definition of copper?

Answer 16

A reddish-brown, stretchable (ductile) and metallic element

Question 17

Reactive metal + water –>

Answer 17

Reactive metal + water –> Metal hydroxide + Hydrogen

Question 18

How can we test to see if hydrogen gas is present?

Answer 18

Light a wooden splint

Hold above gas and if squeaky pop then hydrogen is present