Q • Question 1 0.5 out of 0.5 points What should be worn in a laboratory at all times to decrease the likelihood of eye injury? • Question 2 0.5 out of 0.5 points Is the rusting of iron a physical or chemical change? • Question 3 0.5 out of 0.5 points What is the relation between the masses of the reactants and products in a chemical reaction according to the Law of Conservation of Mass? • Question 4 0.5 out of 0.5 points Is sugar disollving in water a physical or chemical change?

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