a) State the meaning of polyatomic ions. Mention any two examples.
(b) Write the chemical formula of copper nitrate.
(c) Calculate the mass of the following:
(i) 10 moles of sodium sulphite (Na2SO3)
(ii) 4 moles of aluminium atoms
[At. Mass of Na 23 u, S 32 u, O 16 u, Al 27 u]
Answers
Answered by
0
Answer:
1.polyatomic ion, also known as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit. ... Examples: Carbonate (CO32-), sulphate (SO42-), nitrate - NO3- and hydroxide ions OH- are all polyatomic ions.
2. Cu(NO3)2
Similar questions