SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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all atoms have the same mass.
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all elements have the same mass.
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the mass of the products equals the sum of the mass of the reactants.
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the products always weigh more than the sum of the mass of the reactants.
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Detailed explanation-1: -Assertion: In a chemical reaction, the sum of the masses of the reactants and products remain unchanged. Reason: According to the law of conservation of mass, mass can neither be created nor destroyed.
Detailed explanation-2: -The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed.
Detailed explanation-3: -One of these is called the law of conservation of mass, which states that during a chemical reaction, the total mass of the products must be equal to the total mass of the reactants. In other words, mass cannot be created or destroyed during a chemical reaction, but is always conserved.
Detailed explanation-4: -"In a chemical reaction, the total mass of the reactants is equal to the total mass of the products” This means there is no change in mass during a chemical reaction.
Detailed explanation-5: -The law of conservation of mass states that during a physical or chemical change the total mass of the products is equal to the total mass of reactants. It can also be stated that matter cannot be created or destroyed.