Question

what meant by a chemical equation? write any 4 information regarding the reaction that a chemical equation​

Answer 1

Answer:

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.

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Answer 2

@Srushtijadhav2006 have explained you what is a chemical reaction.

Let me explain you what are some information's regarding chemical equation:

1) You should write the states in which reactants are taken and in which product are obtained.

2) You should write the information about the catalyst used if taken.

3) Temperature and Pressure should also be mentioned if given.

4) Most important is that equations should be balanced.

5) And you should write the heat changes also.

For example if it is a endothermic reaction means heat is absorbed then you should write ( + Heat ) in reactants side.

And if exothermic write ( + Heat ) in products side.

It is my own language and not well defined so use NCERT to write in exams and for explanation you can read it.