Law of Conservation of Mass
Quiz by Susan Coffey
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5 questions
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- Q1What is the definition of chemical reaction?a system where none of the reactants or products are allowed to escapeThe input which reacts chemically to create productoccurs when the atoms and molecules of two or more substances rearrange to form new substances45s
- Q2The law of conservation of mass states that matter cannot be created nor __________________.transferreddestroyedrearranged45s
- Q3A __________________ chemical equation shows that the same number of atoms in the reactants are also in the product.balancedrearrangedtransferred45s
- Q4In a closed system, a chemical reaction takes place. The mass of the reactants in the beginning of the reaction is 25g. What does the mass have to be in the end of the reaction in order to follow the law of conservation of mass?30g25g15g45s
- Q5There are two reactants in a chemical equation, and one product. The mass of the product is 30g. The mass of the first reactant is 17g. What must the mass of the second reactant be, if the equation is to follow the law of conservation of mass?23g13g47g45s