1000 Chemistry Questions And Answers Pdf -

... (continue to 500) Q501. What is the general formula for alkanes? A501. CₙH₂ₙ₊₂

... (continue to 700) Q701. What is a galvanic cell? A701. Converts chemical energy to electrical energy 1000 Chemistry Questions And Answers Pdf

... (continue to 800) Q801. What does a catalyst do? A801. Speeds up reaction without being consumed 1000 Chemistry Questions And Answers Pdf

... (continue to 600) Q601. What is an exothermic reaction? A601. Releases heat 1000 Chemistry Questions And Answers Pdf

What is an isotope? A5. Atoms of the same element with different numbers of neutrons

... (continue to 900) Q901. What is the main greenhouse gas? A901. Carbon dioxide (CO₂)

Who proposed the planetary model of the atom? A2. Ernest Rutherford