Madhya Pradesh Board Class 10 Science — Chapter Summary

Chemical reactions are changes in which new substances are formed and the identity of the original substances changes. Common signs of a reaction include change in colour, change in state, evolution of gas, and change in temperature. Chemical equations give a short symbolic way to write reactions. A

Acids, bases and salts explain many common changes seen in daily life, from sour taste and cleaning agents to digestion, tooth decay and neutralisation. Acids produce hydrogen ions in water, bases produce hydroxide ions in water, and salts are formed in reactions between acids and bases, metals, met

Metals and non-metals are classified mainly by physical and chemical properties. Metals usually have a shining surface, are hard, malleable, ductile, sonorous, and good conductors of heat and electricity. Non-metals usually lack these properties, though there are important exceptions such as iodine