At science camp, the kitchen served half of their blueberries with breakfast. After dinner, they put the remaining 5,270g of berries on top of their ice cream dessert How many kilograms of blueberries did the science camp start with?

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Areaction in which products can react to re-form reactants is

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.