Question

Writing of word equations, chemical equations, state the type of reaction. (Student should write 20 reactions)

Answer 1

Answer:

Chemical Equations

If you were to describe a chemical reaction in a sentence, it would be quite long. To express it in a shorter form, we can write it as a word-equation. For example, the reaction between magnesium and oxygen to give magnesium oxide can be represented as follows –

Magnesium + Oxygen → Magnesium oxide

(Reactants)    →    (Product)

Substances that undergo a chemical change in a reaction are ‘Reactants’, i.e. magnesium and oxygen in the above example. The new substance formed as a result of the chemical change is the ‘Product’ i.e. magnesium oxide. In a word equation –

The reactants and products are separated by an arrow between them.

Reactants are written on the left-hand side of the arrow (LHS) with a (+) sign between them.

Products are written on the right-hand side of the arrow (RHS) with a (+) sign between them.

The arrowhead points towards the products and indicates the direction of the reaction.

Answer 2

Writing of word equations, chemical equations, state the type of reaction. are all the tools which show we depict a chemical reaction and how a reaction takes place.

Explanation:

Writing of word equations :-  Word equation represents a chemical reaction using the names of the substances involved

Word equation does not show any formulas or sumbols.

Word equations are in the form REACTANT→ PRODUCT

A + sign separates two or more reactants or two or more products.

Reactants are those substances that react together in a chemical reaction

Products are the substance which is formed as a result of the reaction.

Chemical Equations:-

It is the symbolic representation of chemical reactions in which reactants and products.

It is expressed in terms of chemical formulas

Type of reaction :-Chemical reactions is of different types Combination reactions, Decomposition reaction, Combustion, neutralisation and displacement reactions.

Substances react are known as reactants and that are formed during a chemical reaction are known as products.