Question

what should be learnt in Chemistry class 10 chapter 1 chemical reactions and equations​

Answer 1

Answer:

is this correct akka?

Explanation:

We have often seen that some substances when mixed, form new substances.

Like if we want to make tea, we add sugar, tea, milk and water. On heating, it turns into tea.

Likewise, if you add a spoon of curd to lukewarm milk and keep it aside for few hours, then the whole milk turns into curd.

We conclude that they thoroughly mix with each other and form a new substance. This thorough mixing is a chemical reaction.

Answer 2

Answer:

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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.

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When ice melts it undergoes a physical change from solid to liquid. ...

Mixtures and solutions are different from chemical reactions as the molecules of the substances stay the same.

Mixtures and solutions are different from chemical reactions as the molecules of the substances stay the same.Most cars get their power from an engine that uses a combustion chemical reaction.

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