Advertisements
Advertisements
प्रश्न
Balance the given equation:
Fe + O2
Fe2O3
Advertisements
उत्तर
4Fe + 3O2 → 2Fe2O3
APPEARS IN
संबंधित प्रश्न
2 mL of sodium hydroxide solution is added to a few pieces of granulated zinc metal taken in a test tube. When the contents are warmed, a gas evolves which is bubbled through a soap solution before testing. Write the equation of the chemical reaction involved and the test to detect the gas. Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid.
What does the symbol (aq) represent in a chemical equation?
Balance the given equation:
Mg(OH)2 + HCI MgCI + H2O
Balance the given equation:
AI2(SO4)3 +NaOH
AI(OH)3 + Na2SO4
Rewrite the following information in the form of a balanced chemical equation:
Magnesium burns in carbon dioxide to form magnesium oxide and carbon.
State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.
What is a chemical equation?
Write word equation for the following skeletal equation:
\[\ce{Ca + O2 → CaO}\]
Complete the following equation:
CH2 + H5OH `("Hot Conc." H_2SO_4)/`>
Write the chemical equation for the following word equation and balance them.
Calcium oxide + Carbon dioxide → Calcium carbonate
Why should an equation be balanced? Explain with the help of a simple equation.
Write the balanced chemical equation of the following reaction.
aluminium carbide + water → aluminium hydroxide + methane
Write the balanced chemical equation of the following reaction.
potassium dichromate + hydrochloric acid → Potassium chloride + chromium chloride + water + chlorine
Write the balanced chemical equation of the following reaction.
sodium chloride + manganese dioxide + sulphuric acid → sodium hydrogen sulphate + manganese sulphate + water + chlorine.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Light energy
Balance the following simple equation:
KHCO3 → K2CO3 + H2O + CO2
Balance the following simple equation:
\[\ce{Ca(OH)2 + HNO3 -> Ca(NO3)2 + H2O}\]
Write a balanced equation for the following word equation:
Nitrogen dioxide + Water + Oxygen → Nitric acid
Balance the following chemical equation.
- Na + O2 → Na2O3
- Ca + N2 → Ca3N2
- N2 + H2 →NH3
- CaCO3 +HCl → CaCl2 + CO2 +H2O
- Pb(NO3)2 → PbO + NO2 + O2
