When solutions of barium chloride and lithium sulfate are mixed, t the reaction

Question

When solutions of barium chloride and lithium sulfate are mixed, t the reaction are he spectator ions in A) Li and Cl. B) Li and Ba2* C) Cl and SO42 D) No spectator ions. E) Ba2 and SO2 18. A piece of magnesium metal is burned in air (containing oxygen gas), and a white powder of magnesium oxide is formed. The class of this reaction is: A) combination reaction B) double-displacement reaction. C) decomposition reaction. D) single-displacement reaction. E) disproportionation reaction 19. Which of the following ions can act as Bronsted base(s)?

Explanation / Answer

Mn(s) + O2(g)- MnO2

It shows that it is a combination reaction because here manganese and oxygen are combine together to form an product. So answer is (A) it is combination reaction

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