Metals and water

Question 1

metal + water

Answer 1

metal hydroxide + hydrogen

Question 2

potassium + water

Answer 2

Potassium hydroxide + hydrogen

Question 3

magnesium + water

Answer 3

Magnesium hydroxide + hydrogen

Question 4

calcium + water

Answer 4

Calcium hydroxide + hydrogen

Question 5

describe the reaction of potassium with water

Answer 5

floats, melts and moves around burning with a lilac flame and dissolving

Question 6

describe the reaction of sodium with water

Answer 6

floats melts and moves around giving of a gas eventually dissolving

Question 7

describe the reaction of calcium with water

Answer 7

sinks but may rise to surface with gas bubbles ; forms a white solid