Al(HCO3)3
The chemical formula of dilithium carbonate is Li2CO3.
To represent 3 hydrogen atoms and 1 nitrogen atom in a chemical formula, you would write it as NH3. This formula indicates that there are three hydrogen atoms and one nitrogen atom bonded together to form a molecule of ammonia.
Hydrogen is represented simply by a capitol 'H'.
HBr In a chemical equation you would write it as HBr(aq).
The equation for the dehydration of sodium carbonate decahydrate (washing soda) is: [ Na2CO3 · 10H2O \rightarrow Na2CO3 + 10H2O ]
NaHCO3
CO3
It's impossible to tell. "Potassium hydrogen" is clearly an error of some kind; it might be a somewhat confused attempt to write "potassium hydride," or it could be an omission error for something like "potassium hydrogen carbonate."
アルミニウム(aluminum)
The chemical formula of dilithium carbonate is Li2CO3.
Na2CO3
Carbonated water is a solution of carbonic acid. This exists as an equilibrium mixture of H2CO3 molecules, solvated hydrogen ions and solvated carbonate and hydrogencarbonate ions, so a simple formula is not possible. H2CO3(aq) is probably the best approximation.
The compound 4Al2(CO3)3 represents a chemical formula that contains 4 aluminum (Al) ions and 3 carbonate (CO3) groups. It is important to note that the correct way to write this compound would be Al2(CO3)3.
You can use a large magnet. Aluminum isn't magnetic, but steel is... Try that out. You should write A for Aluminum and S for steel on the cans so you don't get mixed up.
To write the chemical formula for aluminum fluoride, the elements are Al for aluminum and F for fluorine. Since aluminum has a 3+ charge and fluorine has a 1- charge, the formula is AlF3.
To represent 3 hydrogen atoms and 1 nitrogen atom in a chemical formula, you would write it as NH3. This formula indicates that there are three hydrogen atoms and one nitrogen atom bonded together to form a molecule of ammonia.
It is written as Na2CO3. It is a base compound.