This is the correct chemical formula for water.
H20
Hydrogen gas reacts with oxygen to form water.
2H2+O2->2H2O
_H2+_O2->_H2O
2H2+O2->2NaCl
This is the formula for sodium chloride.
NaCl
Sodium reacts with chlorine gas to form sodium chloride.
2Na+Cl2->2NaCl
_Na+_Cl2->_NaCl
2Na+Cl2->2NaCl
Write the formula for calcium nitrate.
Ca(NO3)2
Magnesium reacts with hydrochloric acid to form magnesium chloride and hydrogen gas.
Mg+2HCl->MgCl2+H2
_Fe+_O2->_Fe2O3
4Fe+3O2->2Fe2O3
This is the correct formula for aluminum sulfate.
Al2(SO4)3
Calcium carbonate decomposes into calcium oxide and carbon dioxide.
CaCO3->CaO+CO2
_C3H8+_O2->_CO2+_H2O
C3H8+5O2->3CO2+4H2O
Write the formula for ammonium phosphate.
(NH4)3PO4
Aluminum reacts with copper(II) sulfate to form aluminum sulfate sulfate and copper.
2Al+3CuSO4->Al2(SO4)3+3Cu
_Al+_HCl->_AlCl3+_H2
2Al+6HCl->2AlCl3+3H2