Advertisements
Advertisements
प्रश्न
What is a chemical equation?
Advertisements
उत्तर
Chemical equation : A chemical equation is the symbolic representation of a chemical reaction using the symbols and the formula of the substances involved in the reaction.
संबंधित प्रश्न
What is wrong with the following chemical equation?
Mg + O → MgO
Correct and balance it.
What are the various ways in which a chemical equation can be made more informative? Give examples to illustrate your answer.
State one characteristic of the chemical reaction which takes place when dilute hydrochloric acid is added to sodium carbonate.
The step(s) necessary for determining the percentage of water absorbed by raisins is/are:
Write the chemical equation for the following word equation and balance them.
Carbon + Oxygen → Carbon dioxide
Write the chemical equation for the following word equation and balance them.
Sodium reacts with water to form sodium hydroxide and hydrogen
Name the substances that are getting oxidised and reduced in the process.
Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Catalyst
Which of the following are exothermic processes?
- Reaction of water with quick lime
- Dilution of an acid
- Evaporation of water
- Sublimation of camphor (crystals)
Which among the following is(are) double displacement reaction(s)?
- `"Pb" + "CuCl"_2 -> "PbCl"_2 + "Cu"`
- `"Na"_2"SO"_4 + "BaCl"_2 -> "BaSO"_4 + 2"NaCl"`
- `"C" + "O"_2 -> "CO"_2`
- `"CH"_4 + 2"O"_2 -> "CO"_2 + 2"H"_2"O"`
