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प्रश्न
What is a chemical reaction?
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उत्तर
A chemical reaction is the process of breaking the chemical bonds of the reacting substances (reactants) and making new bonds to form new substances (products).
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संबंधित प्रश्न
FILL IN THE BLANK
A .............. change is a temporary change.
Write a short note on the information derived from a balanced chemical equation.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Potassium fluoride
Give examples of exothermic reactions i.e. heat evolved in each of the following:
(a) reaction between a solid and a liquid
(b) reaction between two gases
Give two examples of exothermic reactions seen in everyday life.
Name the following:
The type of change physical or chemical involved – ‘during respiration in human beings’.
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
Burning of paper is the best example of ______ change.
The chemical formula of rust is ______.
Why is spoiling food a chemical change?
______ is the chemical name of slaked lime.
