Question

। छात्रा: कदा एकत्रिता: भवन्ति ? (i) वार्ताकाले (i) शयनकाले (iii) क्रीडनकाले (iv) भोजनकाले​

Answer 1

Answer:

iv

Explanation:

भोजनकाले

I hope it is right

Answer 2

Answer:

According to the question,

Na2CO3+CH3COOH→CO2+H2O+CH3COONa

Mass of reactants =5.3+6=11.3 gm

Mass of products =2.2+0.9+8.2=11.3 gm

This shows, that during a chemical reaction, the mass of reactant = mass of the product.

Hence, it shows the law of conservation of mass.

Explanation:

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