In the chemical equation the …………….......are written on the left-hand side.
reactants
element
catalyst
products
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Solution
The correct option is A reactants Chemical equations are written with the reactants on the left side of the equation (reaction arrow) and products on the right side of the equation (reaction arrow). Reactant: A substance that undergoes a change in a chemical reaction and is written on the left side of the reaction arrow in a chemical equation.