Question: According to the conservation of mass when water freezes into ice the amount of mass of the ice would be

Answer: equal to that of the water

Question: Law of Conservation of Mass

Answer: A specific amount of water would have the same mass even if you turned it from a liquid to a solid or a gas is an example of which law

Question: A reaction between sodium hydroxide and hydrogen chloride gas produces sodium chloride and water. A reaction of 22.85 g of sodium hydroxide with 20.82 g of hydrogen chloride gives off 10.29 g of water. What mass of sodium chloride is formed in the reaction?

Answer: 20.82g (Law of Conservation of Mass)

Question: A reaction between copper oxide and hydrogen gas produces copper and water. A reaction of 12.640 g of copper oxide with 0.316 g hydrogen chloride gives off 2.844 g of water. What mass of copper is formed in the reaction? ___ g

Answer: 10.112 (Law of Conservation of Mass)

Question:

Answer: 13.73g (Law of Conservation of Mass)

Question: A reaction between ammonia gas and chlorine gas produces ammonium chloride and nitrogen gas. A reaction of 17.0 g of ammonia with 26.6 g of chlorine gas gives off 3.5 g of nitrogen. What mass of ammonium chloride is formed in the reaction?

Answer: 40.1g (Law of Conservation of Mass)

Question: Hydrogen and oxygen undergo a chemical reaction to form water. How much water would form if 2.56 g of hydrogen reacted completely with 20.32 g of oxygen?

Answer: 22.88g (Law of Conservation of Mass)

Question: A reaction of heating potassium permanganate produces potassium manganate, manganese dioxide and oxygen gas. Heat 15.8 g potassium permanganate until no more oxygen gas is given off. The remaining material has a mass of 14.2 g. What mass of oxygen gas was produced in the reaction?

Answer: 1.6g

Question: Law of Conservation of Mass

(Lavoisier)

Answer: Matter is not created nor destroyed in any chemical or physical change (which states that during a chemical reaction, the total mass of the products must be equal to the total mass of the reactants)

Question: Law of Definite Proportions

Answer: A given chemical compound always contains the same elements in the exact same proportions by mass