Advertisements
Advertisements
प्रश्न
Balance the following equation:
\[\ce{H2O2 -> H2O + O2}\]
Advertisements
उत्तर
\[\ce{2H2O2 -> 2H2O + O2}\]
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false:
A chemical equation can be balanced easily by altering the formula of a reactant or product.
Balance the following equation:
\[\ce{Fe + O2 -> Fe2O3}\]
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are products.
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are non-metals.
Give one example of an exothermic reaction.
Write your observation and name the product when zinc reacts with dilute hydrochloric acid.
What do the following symbol stand for?
2H2
Write the chemical equation for the following word equation and balance them.
Calcium oxide + Carbon dioxide → Calcium carbonate
What is the valency of :
carbon in CH4
Write the balanced chemical equations of the following reactions.
chlorine + sulphur dioxide + water → sulphuric acid + hydrogen chloride
Write the balanced chemical equation of the following reaction.
copper + nitric acid → copper nitrate + nitric oxide + water
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
Balance the following simple equation:
Ca + H2O → Ca(OH)2 + H2
Balance the following simple equation:
Fe + H2O ⇌ Fe3O4 + H2
Balance the following simple equation:
\[\ce{N2 + H2 <=> NH3}\]
Balance the following simple equation:
NaOH + Cl2 → NaCl + NaClO + H2O
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
NaOH + CO2 → Na2CO3 + H2O
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Balance the equation with proper coefficient and rewrite the equation.
Write the skeleton equation for the following word equation and then balance them.
- Carbon + Oxygen → Carbon dioxide.
- Phosphorus + Chlorine → Phosphorus pentachloride.
- Sulphur + Oxygen → Sulphur dioxide.
- Magnesium + hydrogen → Magnesium + Hydrogen chloride chloride.
Complete the following blank in the equation as indicated.
\[\ce{CaH2_{(s)} + 2H2O_{( aq)}-> Ca(OH)2_{(s)} + 2H2_{(g)}}\]
Grams: 42 g + ______ `→` ______ + ______
