Question

PART
Chemical Reactions and
Equations​

Answer 1

Answer:

1.Chemical reactions are chemical changes in which reactants transform into products by making or breaking of bonds (or both) between different atoms.

• A chemical reaction can be determined with the help of any of the following observations:
• a) Evolution of a gas
• b) Change in temperature
• c) Formation of a precipitate
• d) Change in colour
• e) Change of state

• Taking into consideration different factors, chemical reactions are grouped into multiple categories.

Few examples are:

● Combination

● Decomposition

● Single Displacement

● Double displacement

● Redox

● Endothermic

● Exothermic

● Precipitation

● Neutralization

2. Representation of a chemical reaction in terms of symbols and chemical formulae of the reactants and products is known as a chemical equation.

• For solids, the symbol is “(s)”.

• For liquids, it is “(l)”.

• For gases, it is “(g)”.

• For aqueous solutions, it is “(aq)”.

• For gas produced in the reaction, it is represented by “(↑)”.

• For precipitate formed in the reaction, it is represented by “(↓)”.

IF YOU FILL THANKFUL MARK A BRAINEST.......