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Give the name for MgSO4.

Give the number of the group where you can find silver.  

Twelve-year-old Lola spends most of her time with a group of…

How many significant figures are there in the value 560?

A package weighs 2.5 Kg.  How many ounces does it weigh? 1 g…

A sample of a solid is added to a graduated cylinder that me…

How many significant figures are there in the value 0.00402?