“na2so3” represents sodium sulfite. what does the 4 mean in the formula 4na2so3?

The mass of substance which consists the equal number of particles as 12 grams of Carbon-12 is said to be mole.

For example:

The balanced chemical equation for production of water from hydrogen and oxygen is:

That means 2 moles of reacts with 1 mole of to give 2 moles of  .

The given formula is .

Hence, 4 represents the number of moles in formula that is 4 moles of .

The number of atoms of sodium, in is:

The number of atoms of sulfur, in is:

The number of atoms of oxygen in, in is:

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

um i think it might be a car?