In the reaction: 2Mg + O₂ → 2MgO, the reactant is

2MgO
2Mg + O₂
2Mg
O₂

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Reactants are the substances on the left side of the equation.

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❓ A/an __________ of a compound reflects the simplest ratio of atoms in the compound.
❓ The __________ of a compound is based on the actual number of atoms that comprise a molecule of that compound.
❓ Which of the following is found on the left side of the reaction symbol in a chemical equation?
❓ A homogeneous liquid that cannot be separated into its components through physical means but can be decomposed throug...
❓ The mass of a mole of an element or compound is

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