Science, asked by sushant1923, 10 months ago

write short notes on chemical reaction and equation . I will mark that
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Answers

Answered by rajeshsinghfatuha709
6

Answer:

A chemical reaction is described by a chemical equation, an expression that gives the identities and quantities of the substances involved in a reaction. A chemical equation shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow.

Answered by ayesha67866
2

=Chemical reaction is the process by which two or more substance react with each other to form new substance with different properties.

→ These are the following changes to determine that the chemical reaction has taken place:

(i) Change in state

(ii) Change in colour

(iii) Evolution of gas

(iv) Change in temperature

→ A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.

Magnesium + oxygen → magnesium oxide

(Reactant) → (Product)

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