Characteristics of chemical reactions
Characteristics of chemical reactions: Overview
This topic discusses the characteristics of chemical reactions. It explains the concepts of evolution of gas, formation of precipitate, change in temperature and change in state during a chemical reaction.
Important Questions on Characteristics of chemical reactions
When one or more substances (elements or compounds), undergo a chemical change, with the absorption or release of energy, so as to form one or more products, the changes taking place collectively is called a _____.
The gas released upon the reaction of zinc with sulphuric acid is basic in nature.
Write the correct answer in the form of A, B, C, D or E for the statement given below:
Select a gas from the following which reacts with oxygen to give a neutral liquid.
[A: Hydrogen B: Copper [II] oxide C: Oxygen D: Copper [II] hydroxide E: Ammonia]
Which one of these reactions show the formation of precipitate?
Which one of these is a characteristic of a chemical reaction?
What are the characteristics of chemical reactions?
The gas evolved indicated with _____ in the chemical equation.
A _____ is an insoluble solid formed during a chemical reaction.
A gas is always evolved in a chemical reaction.
