The formula for the carbonate ion is co32−. predict the formula for carbonic acid.

Answer : The formula of carbonic acid is,

Explanation :

Acid : It is a substance that has ability of donating proton or hydrogen ion, . That means, in acid hydrogen should be present in the compound.

The element carbonate is the non-metal polyatomic ion. The stable oxidation state of phosphate ion is, (-2).

When the hydrogen combine with the carbonate ion, it forms hydrogen carbonate (carbonic acid). The formula of carbonic acid is, .

It is an ionic compound in which the a metal (hydrogen) react with the non-metal (carbonate ion) and combine with the an ionic bond by the criss-cross method.

Hence, the formula of carbonic acid is,

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b