3 Mg + N2 = Mg3N2
balance chemical equation, change only the coefficients of the formulas.
A coefficient is written in front of a formula to balance a chemical equation.
No! You can change coefficients as needed to balance an equation but you cannot just change a substance's subscripts.
That's not a chemical equation. But I believe the coefficient (the number in front of HCl) is 1. Normally, when you write equations, you don't put the 1. It's just inferred.
4
balance chemical equation, change only the coefficients of the formulas.
A coefficient is written in front of a formula to balance a chemical equation.
A coefficient.
numbers in front of chemical formulas to help balance the equation
No! You can change coefficients as needed to balance an equation but you cannot just change a substance's subscripts.
I think moles
That's not a chemical equation. But I believe the coefficient (the number in front of HCl) is 1. Normally, when you write equations, you don't put the 1. It's just inferred.
The coefficient is a count of the number of molecules of each substance in a chemical process. The subscript is the number of atoms of an element in each molecule.
A coefficient is the number that goes before an element when your balancing the equation. And a subscript is the number after the element. Subscripts are not changed when you balance the equation.
Jean Beguin was the first iatrochemist to balance a chemical equation.
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The coefficient (the number in front of the reactant) tells you the number of moles involved.