Question

Which of the following metals will react with water to produce a metal hydroxide and hydrogen gas?

Answer 1

K
Sn
Ni
Mn

Answer 2

@nincompoop Can you help out?

Answer 3

If you have a activity series you could understand which metals are more active than others, and will which ones they will replace.

Answer 4

Here is an example of a highly reactive metal: \(\sf Na\)\[\sf 2Na_{(s)} + 2H_2O_{(l)} \rightarrow 2NaOH_{(aq)} + H_{2{(g)}}\]

Answer 5

They are called the akaline and akaline earth metals for a reason. They form bases when they react with water. HINT HINT

Answer 6

As you move downward groups 1 and 2, they become more reactive as they have more metallic character.

Answer 7

I got it yesterday, forgot to close the question sorry, but thanks anyway