B: 1 and 2 only are correct
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Which statement about the first ionisation energies of magnesium and neon is correct?
Two Period 3 elements, X and Y, burn separately in oxygen to form solid oxides. The oxide of X is insoluble in water.…
V and Z are both elements in Period 3 of the Periodic Table. Each element forms one stable ion that does not contain …
A container is partially filled with hot water, sealed and left to cool. Which statements are correct? 1 As the tempe…
Ammonia and chlorine react together in the gas phase. 8NH₃ + 3Cl₂ → N₂ + 6NH₄Cl Which statements are correct? 1 Ammon…
In which reactions does NH₃ behave as a Brønsted-Lowry acid? 1 2NH₃ → NH₂⁻ + NH₄⁺ 2 HSO₄⁻ + NH₃ → SO₄²⁻ + NH₄⁺ 3 Ag⁺ …