the chemical equation below shows the burning of magnesium (mg) with oxygen (o₂) to form magnesium oxide…

the chemical equation below shows the burning of magnesium (mg) with oxygen (o₂) to form magnesium oxide (mgo).\n2mg + o₂ → 2mgo\nniven wants to calculate the mass of mgo that is produced by the burning of 28.0 g of mg. what is the first step in nivens calculation?\n○ balance the chemical equation.\n○ convert grams of mg to moles.\n○ determine whether heat is given off by this reaction.\n○ find the number of mg atoms in the sample.

the chemical equation below shows the burning of magnesium (mg) with oxygen (o₂) to form magnesium oxide (mgo).\n2mg + o₂ → 2mgo\nniven wants to calculate the mass of mgo that is produced by the burning of 28.0 g of mg. what is the first step in nivens calculation?\n○ balance the chemical equation.\n○ convert grams of mg to moles.\n○ determine whether heat is given off by this reaction.\n○ find the number of mg atoms in the sample.

Answer

Brief Explanations:

To calculate the mass of a product from the mass of a reactant in a chemical - reaction, the first step is to convert the mass of the given reactant (Mg) to moles using its molar mass. The chemical equation is already balanced. Determining heat and the number of atoms are not the first steps for this mass - to - mass stoichiometry calculation.

Answer:

Convert grams of Mg to moles.