which chemical equation is unbalanced?\nc + o₂ → co₂\nsr + o₂ → 2sro\n6h₂ + 3o₂ → 6h₂o\nh₂ + h₂ + o₂ → h₂o +…

which chemical equation is unbalanced?\nc + o₂ → co₂\nsr + o₂ → 2sro\n6h₂ + 3o₂ → 6h₂o\nh₂ + h₂ + o₂ → h₂o + h₂o

which chemical equation is unbalanced?\nc + o₂ → co₂\nsr + o₂ → 2sro\n6h₂ + 3o₂ → 6h₂o\nh₂ + h₂ + o₂ → h₂o + h₂o

Answer

Explanation:

Step1: Analyze C + O₂ → CO₂

On the left - hand side, 1 carbon atom and 2 oxygen atoms. On the right - hand side, 1 carbon atom and 2 oxygen atoms. It is balanced.

Step2: Analyze Sr + O₂ → 2SrO

On the left - hand side, 1 strontium atom and 2 oxygen atoms. On the right - hand side, 2 strontium atoms and 2 oxygen atoms. It is unbalanced.

Step3: Analyze 6H₂ + 3O₂ → 6H₂O

On the left - hand side, 12 hydrogen atoms and 6 oxygen atoms. On the right - hand side, 12 hydrogen atoms and 6 oxygen atoms. It is balanced.

Step4: Analyze H₂ + H₂ + O₂ → H₂O + H₂O

On the left - hand side, 4 hydrogen atoms and 2 oxygen atoms. On the right - hand side, 4 hydrogen atoms and 2 oxygen atoms. It is balanced.

Answer:

Sr + O₂ → 2SrO