2NaCl is a.
(Mulititple choice)
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What type of solution is formed if 10 g of kclo3 are dissolved in 100g of water at 30

Calcium chloride +gold(1) oxide—>

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)