Question

5. Write the names of the following compounds deduce thele molecular masses.
Na SO,K.CO.CO. Mah. Now
AIPO. NaHCO3

6. Two samples 'm' and 'n' of slaked lime were obtained from two different reactions. The details about their composition are as follows:
sample m' mass : 79
Mass of constituent oxygen : 2g
Mass of constituent calcium : 5g
Sample n' mass: 1.4g
Mass of constituent oxygen : 0.4g
Mass of constituent calcium : 1.0g
Which law of chemical combination
does this prove? Explain.
7. Deduce the number of molecules of the following compounds in the given
quantities
32g oxygen, 90g water. 8.8g carbon di
oxide. 7.1g chlorine.
8. If 0.2 mol of the following substances are required how many grams of those substances should be taken?
Sodium chloride, magnesium oxide.
calcium carbonate


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Answer 1

Answer:

....I now this answer .........

u are in 9 STD right

Answer 2

Answer:

I know this answer

Explanation:

she is my classmate