Balance the following chemical equation: H 2 + O 2 → H 2 O

A balanced chemical equation should contain equal number of atoms on both the sides of the equation. That is, it should obey the law of conservation of mass. The given reaction represents the combination reaction of hydrogen and oxygen to form water. It can be balanced as, 2 H 2 + O 2 → 2 H 2 O

Balance the following chemical equation: H 2 + O 2 → H 2 O

A balanced chemical equation should contain equal number of atoms on both the sides of the equation. That is, it should obey the law of conservation of mass. The given reaction represents the combination reaction of hydrogen and oxygen to form water. It can be balanced as, 2 H 2 + O 2 → 2 H 2 O

Balance the following equation: Na 2 O + H 2 O → NaOH

A balanced chemical equation is one which contains an equal number of atoms of each element on both sides of the equation. The balanced equation for the given reaction is: Na 2 O + H 2 O → 2 NaOH

Balance the following equation: CO + O 2 → CO 2

A balanced chemical equation is one which contains an equal number of atoms of each element on both sides of the equation. Equation is balanced by hit and trial method. Count the number of atoms of various elements on both sides of the equation and make them equal by multiplying formulae by suitable numbers. The balanced equation for the given reaction is: 2 CO + O 2 → 2 CO 2

Balance the following equation: Zn + HCl → ZnCl 2 + H 2

A balanced chemical equation is one which contains an equal number of atoms of each element on both sides of the equation. Equation is balanced by hit and trial method. Count the number of atoms of various elements on both sides of the equation and make them equal by multiplying formulae by suitable numbers. The balanced equation for the given reaction is: Zn + 2 HCl → ZnCl 2 + H 2