... (continue to 400) Q401. What is the pH of pure water? A401. 7
... (continue to 500) Q501. What is the general formula for alkanes? A501. CₙH₂ₙ₊₂
Which group contains noble gases? A102. Group 18 1000 Chemistry Questions And Answers Pdf
... (continue to 900) Q901. What is the main greenhouse gas? A901. Carbon dioxide (CO₂)
Where are electrons located in an atom? A4. In electron shells/orbitals around the nucleus What is the general formula for alkanes
... (continue to 200) Q201. What is an ionic bond? A201. Transfer of electrons from metal to nonmetal
What is an isotope? A5. Atoms of the same element with different numbers of neutrons 1000 Chemistry Questions And Answers Pdf
Who proposed the planetary model of the atom? A2. Ernest Rutherford
What is the charge of a proton? A3. +1 (positive)
... (continue to 300) Q301. Balance: H₂ + O₂ → H₂O A301. 2H₂ + O₂ → 2H₂O