Question

Metals react with oxygen ________ which is alkaline.​

Answer 1

Answer:

Explanation:

Metals react with oxygen ________ which is alkaline.​

When metals reacts with oxygen to produce metal Oxide.

Na + $O_{2}$ ---> $Na_{2} O$

Mg + $O_{2}$  --> 2MgO

These oxides reacts with water gives alkaline metal hydroxide.

2$Na_{2} O$ +$H_{2} O$ ---> 2NaOH

MgO + $H_{2} O$--> $Mg(OH)_{2}$

Answer 2

Answer:

bases which are soluble or dissolve in water is known as alkaline

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