SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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there will be no change in mass
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there will be a change in mass as it cannot be directly weighed and may dissipate
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Either A or B
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None of the above
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Detailed explanation-1: -Why is there no change in mass during chemical reactions? During a chemical reaction, atoms are neither created nor destroyed. The atoms of the reactants are just rearranged to form products. Hence, there is no change in mass in a chemical reaction.
Detailed explanation-2: -The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal becomes carbon dioxide when it is burned. The carbon atom changes from a solid structure to a gas but its mass does not change.
Detailed explanation-3: -Conservation of mass is a law central to chemistry. The principle is that the mass of matter, in a closed system, will always be the same no matter what type of change happens to the matter.
Detailed explanation-4: -The law of conservation of mass states that in a closed system, the mass of the system cannot change over time. We can remember the law of conservation of mass with this simple statement: The mass of the reactants must equal the mass of the products.
Detailed explanation-5: -In special relativity, the conservation of mass does not apply if the system is open and energy escapes. However, it does continue to apply to totally closed (isolated) systems. If energy cannot escape a system, its mass cannot decrease.