4Na+2O2=2Na2O
A chemical reaction can be represented by a chemical equation.
A basic equation for the formation of rust is 4Fe + 3O2 --> 2Fe2O3
C + 2S -> CS2 Enthalpy of formation is the change in enthalpy for the formation of a substance from its elements.
A chemical formula written over the arrow in a chemical equation is that of the catalyst used in the reaction.
The chemical equation is:Mg+ + 2 OH- = Mg(OH)2(s)
Metalloids are chemical elements; they have not a chemical equation. They have chemical symbols as B, As, Ge, Te, Si, Sb.
A chemical reaction can be represented by a chemical equation.
A basic equation for the formation of rust is 4Fe + 3O2 --> 2Fe2O3
C + 2S -> CS2 Enthalpy of formation is the change in enthalpy for the formation of a substance from its elements.
The chemical formula for Carbon monoxide is CO and the equation that would result in its formation would be 2C + O2 = 2CO.
A chemical equation puts down on the LHS the chemicals mixed together and on the RHS the results. A nuclear equation puts on the LHS the target element, with an incident particle if relevant, and on the RHS the results. But in a chemical process the constituent elements must balance on each side, whereas with a nuclear change the elements can be converted to other elements.
A chemical formula is just one molecule. For example, the chemical formula for water is H2O. The chemical formula for ammonia is NH3 A chemical equation contains reactants and products, which are molecules or groups of molecules. For example, what is the chemical equation for the formation of water. 2H2 + O2 ---> 2H2O
A chemical formula written over the arrow in a chemical equation is that of the catalyst used in the reaction.
The symbols and formulas are used to recognize chemical elements and chemical compounds.
The chemical equation is:Mg+ + 2 OH- = Mg(OH)2(s)
Sun is a star not a chemical compound; any chemical equation for Sun. Sun contain hydrogen, helium and other minor elements.
There has to be the same numbers and types of elements on both sides of the equation. This is accomplished by adding coefficients in front of the chemical formulas as needed. Never change a formula when balancing an equation.