chemical reactions and equations

chemical reactions and equations

Regarding Compounds

1. Formation - Chemical combination of elements.
2. Objective - To attain stability by getting octet
3. How- By giving, taking or sharing electrons

Chemical Reaction

• Matter is conserved

• Reactants react in fixed proportion

Change : Physical and chemical change

Physical change - Temporary change in state of matter due to changes in temperature, Pressure, Changes are often reversible, No change in composition of matter.e.g ICE

Chemical change - Involves change in composition of matter