Question

Hey guys need ur help . Monday test of science class 10 pre board.
Lack chemistry, please help with important topics and questions

Answer 1

chemical equation
acid base and salt
metal and non metal
carbon and compounds
perodic
best of luck fir your exam

Answer 2

hey...

Here u go....learn these things to become better in chemistry

☆ Balancing a chemical equation
☆ Calculating the molar mass,volume etc {problems}
☆ Esterfication reaction
☆ Sofinification reaction
☆ What happens when acids reacts with metals,metal carbonates,metal hydrogen carbonates,bases etc
☆ Bond angles
☆ Hybridisation (sp,sp2 and sp3)
☆ Neutralisation reaction
☆ Limitations of mendeleef's periodic table
☆ Modern periodic table
☆ How does Atomic radius,Ionisation energy,Electron affinity,Electron negativity,Valency change as we move in a period and a group