magnesium metal (mg) is used in some fire sta...
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)