Chemistry | IGCSE Board A community of knowledge sharing | IGCSE Board


A branch of science studying about matter, its properties and how they interact with each other.

59 questions

Which diagram shows a mixture of noble gases?

What is the mass of oxygen in 72g of pure water?

Which Volume of NH3, measured at RTP, is obtained by reacting 0.75 moles of hydrogen with excess nitrogen?

Which describes the decomposition products formed when sodium nitrate is heated strongly?