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प्रश्न
Differentiate between in Chemical reaction and chemical equation.
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उत्तर
| Chemical reaction | Chemical Equation |
| Any chemical change in matter which involves its transformation into one or more new substances is called a chemical reaction. | A chemical equation is the symbolic representation of a chemical reaction using the symbols and the formula of the substances involved in the reaction. |
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संबंधित प्रश्न
Complete and balance the following chemical equation:
\[\ce{Pb(NO3)2 ->[Heat]}\]
Write the missing reactants and products and balance the equations.
NaOH + ............... `→` NaCI + ...................
Explain the term reactant and product giving examples.
State the conditions necessary for a chemical change or reaction.
Define an electrochemical reaction.
Write the chemical reaction where the following changes are observed.
Physical state is changed
When hydrogen burns in oxygen, water is formed; when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical change involved in the two cases.
What do you observe? When
Barium chloride is added to sodium sulphate solution
Give one example electrochemical reaction.
What do you observe when HCI is passed through a silver nitrate solution.
Give a chemical test to distinguish between the following gases.
HCl and H2S
Give a chemical test to distinguish between the following gases.
HCl and Cl2
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium dichromate.
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium chloride
State the following reaction represent oxidation or reduction.
\[\ce{H->H+}\]
Photosynthesis is a chemical reaction that takes place in the presence of ______.
When an aqueous solution of potassium chloride is added to an aqueous solution of silver nitrate, a white precipitate is formed. Give the chemical equation of this reaction.
Beating an egg to make a cake is a ______.
The simplest method of preventing rusting of iron is to coat it with oil, grease, or paint. The reason being ______.
Collect information about the types of fuels used for cooking in your area. Discuss with your teachers/parents/others which fuels are less polluting and why.
