What is the difference between the strength of an acid and concentration

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds

Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?