Chemistry, asked by 2468abhishekkumar, 4 months ago

What is the valency of copper in CuSO4 and Cu2O.
b) Calculate the molecular mass of CaCl2 , if the atomic mass of Ca is 40.0 u, and Cl is 35.5 u.
c) In a compound, carbon and oxygen react in a ratio of 3:8 by mass to form carbon dioxide. What mass of oxygen is required to react completely with 9g Carbon? State the associated law.

Answers

Answered by rushitvaggannavar786

0

Answer:

Serach in google

Explanation:

got it

Answered by Anonymous

2

Answer:

valency of copper is 1

molecular mass of cacl2 to is is 111 gram

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