Question

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Answer 1

Answer:

Precipitation Reaction Examples

The reaction between silver nitrate and potassium chloride is a precipitation reaction because solid silver chloride is formed as a product. The reaction may be recognized as a precipitation because two ionic aqueous solutions (aq) react to yield a solid product

Answer 2

Answer:

villi.expands the small intestine if villi will be absent then small intestine will be not get developed so villi should be much important in human beings