C: AgHCO3 and K3PO4
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Several ores of copper contain both copper(II) carbonate and copper(II) hydroxide. This combination is called basic c…
It is possible that ores containing basic copper(II) carbonate also contain water of crystallisation. The formula of …
Sodium azide, NaN3, decomposes as shown. 2NaN3 → 2Na + 3N2 Which volume of nitrogen, measured at room temperature and…
Which compound produces a ketone when refluxed with an acidified solution of potassium dichromate(VI)?
Dibromopentanes can undergo 'double elimination' reactions to produce hydrocarbons. 2NaOH + C₅H₁₀Br₂ → C₅H₈ + 2NaBr +…
In this question you can assume that ¹H and ³H have the same chemical properties. A sample of ethanal contains only o…