magnesium metal (mg) is used in some fire starters, as it ignites quickly and produces a hot, bright flame…

magnesium metal (mg) is used in some fire starters, as it ignites quickly and produces a hot, bright flame. magnesium burns in oxygen gas (o₂) to produce magnesium oxide (mgo). which chemical equation accurately represents this reaction? mg (s) + o₂ (g) → 2mgo (s) mg (s) + o₂ (g) → mgo (s) mg (s) + 2o₂ (g) → 2mgo (s) 2mg (s) + o₂ (g) → 2mgo (s)

magnesium metal (mg) is used in some fire starters, as it ignites quickly and produces a hot, bright flame. magnesium burns in oxygen gas (o₂) to produce magnesium oxide (mgo). which chemical equation accurately represents this reaction? mg (s) + o₂ (g) → 2mgo (s) mg (s) + o₂ (g) → mgo (s) mg (s) + 2o₂ (g) → 2mgo (s) 2mg (s) + o₂ (g) → 2mgo (s)

Answer

Explanation:

Step1: Check the number of oxygen atoms

In (O_2), there are 2 oxygen atoms. In (MgO), there is 1 oxygen atom. To balance the oxygen atoms, we need 2 (MgO) molecules.

Step2: Check the number of magnesium atoms

Since we have 2 (MgO) molecules (which means 2 magnesium atoms), we need 2 (Mg) atoms on the reactant side.

Answer:

(2Mg_{(s)}+O_{2(g)}\longrightarrow 2MgO_{(s)}) (the fourth option)