Question

what is the nature of oxide formed when matels combine with oxygen​

Answer 1

Answer:

Metal oxides are crystalline solids that contain a metal cation and an oxide anion. They typically react with water to form bases or with acids to form salts. MO + H2O → M(OH)2 (where M = group 2 metal) Thus, these compounds are often called basic oxides.

Explanation:

Answer 2

Answer:

(a) When non-metals react with oxygen, they form acidic oxides or neutral oxides. Example: Carbon reacts with oxygen to form an acidic oxide called carbon dioxide. Hydrogen reacts with oxygen to form neutral oxide called water.

(b) When metals combine with oxygen, they form basic oxides.