Question

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Answer 1

Explanation:

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Answer 2

Answer:

Reactants-

Sodium Carbonate= 5.3g

Ethanoic acid= 6g

Products-

Carbon Dioxide= 2.2g

Water= 0.9g

Sodium ethanoate= 8.2g

Mass of reactants=

 ∴ 5.3g+6g= 11.3g

Mass of products=

 ∴ 2.2g+0.9g+8.2g=11.3

∴Mass of reactants=Mass of products

Thus, this proves Law of conservation of mass

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