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barium sulfate is insoluble

Lets start with what a concentration is. Concentration is the amount of something in a volume. For example, 1 gram of sugar in one litre of water is 1 gram per litre. This can be written as 1g/L (the divi...

Many elements readily form ions because their electron configurations are more stable if electrons are added or removed, usually in order to ensure that the outermost shell is a full octet. An ionic compo...

To answer this question we need to think about the bonding that occurs within metals. Metallic elements form strong lattices due to the metallic bonding. This consists of a lattice of positive metal atoms...

2 AgI + 1 Na₂S → 1 Ag₂S + 2 NaI Both sides of the equation need to have the same number of each element. We need to make sure that the amount of one element we have on one side of th...