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H2(g) + O2(g) --> H2O(l) unbalanced.

2H2(g) + O2(g) ==> 2H2O(l) balanced.

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Q: If a sample of pure hydrogen gas is ignited very carefully the hydrogen burns gently combining with the oxygen gas of the air to form water vapor write the unbalanced chemical equation for this react?
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Related questions

When is it said to be a unbalanced equation?

the equation is unbalanced becoz the mass is not the same on both sides of equation such a chemical equation is a skeletal chemical equation for a reaction


An unbalanced chemical equation?

An unbalanced equation that uses names of the substances instead of chemical formulas is called a word equation. As a rule, metallic elements are named first and non-metallic next. The suffix of the latter is changed into "ide".


What is meant by skeletal chemical equation?

An unbalanced equation having diffrent mass on both side of equation is called skeletol equation.


What is on the left of the chemical equation?

The chemicals that you are combining, also known as the reactants.


The Law of Conservation of Mass states that the equation for a chemical reaction will always be unbalanced?

False


Why cant an unbalanced chemical equation fully describe a reaction?

The amounts of reactants and products are not mentioned.


What is the unbalanced chemical equation for the reaction of calcium metal with water?

Ca + H2O -> H2 + CaOH


What makes a chemical equation unbalanced?

If the number of any certain element in the reactants does not equal exactly the number of that same element in the products, the reaction is unbalanced.


Chemical reaction of caco3 and No2?

Unbalanced equation is: NO2 + CaCo3 = Ca(NO3)2 + CO2


What happens when pressures are unbalanced?

if you mean in a chemical equation, then if the pressures are unbalanced, the reaction will shift to whatever side has less pressure, to make more pressure so its balanced out again.


What is potassium chlorate that decomposes into potassium chloride and oxygen?

Unbalanced Equation: KClO3 ===> KCl + O2 Balanced Equation: 2KClO3 ===> 2KCl + 3O2


What do you mean by balanced chemical equation?

A balanced chemical equation is one where the number of the same atoms on both sides are equal. A balanced chemial equation is important because during a chemical reaction, there is rearrangement of atoms only and no new atoms are added. To understand the concept of a balanced chemical equation, first consider an unbalanced chemical equation between magnesium and oxygen to form magnesium oxide. Unbalanced chemical equation: Mg(s) + O2(g) --> MgO(s) Initially, this equation is unbalanced because if we count the number of the oxygen atoms on both sides, the number are unequal. There are two oxygen atoms on the left side but only one on the right side. A balanced chemical equation is one where the number of all of the same atoms on both side are equal. We can balance chemical equations by adding numbers to the coefficient of the chemicals that are involved in the reaction. Balanced chemical equation: 2Mg(s) + O2(g) --> 2MgO(s) This equation is now balanced because if we count the number of the same atoms on both side, they are equal. There are two magnesium atoms and two oxygen atoms on both sides of the equation.