Question

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Answer 1

silica gel is common drying agent in the lab. Here, a Co(+2) complex is used to monitor the condition of silica gel. When it is charged, the colour is blue but when it absorbs moisture, color fades to light purple

Answer 2

Answer:

A force is a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects.