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GenaCL600 [577]
3 years ago
15

According to the law of multiple proportions, when water forms, the mass ratio of hydrogen to oxygen is variable.

Chemistry
1 answer:
Eddi Din [679]3 years ago
4 0

Answer & Explanation:

The law of multiple proportion states that two elements A and B can react with each other to form multiple compounds while one of the two elements remain fixed.

For Example

Hydrogen reacts with oxygen to form:

Water (H2O)

Hydrogen peroxide (H2O2)

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A voltaic cell using Cu/Cu²⁺ and Sn/Sn²⁺ half-cells is set up at standard conditions, and each compartment has a volume of 345 m
Nadusha1986 [10]

The mass of copper deposited is 9.589 g .

Given ,

A volatile cell using Cu/Cu2+ and Sn/Sn2+ half cells is set up at standard conditions ,and each compartment has a volume of 345 ml .

current = 0.17 A

time = 48 hrs =48 (60) (60) =172800 sec

we know , I = Q/t

thus , Q ,charge= It = 0.17 (17280) =29376 C

Then ,atomic mass of copper is 63 g

And valency of Cu is 2.

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29376 C of electricity produce copper =9.589 g

Hence , 9.589 g of Copper is deposited .

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4 0
1 year ago
I don’t understand how to do this
djverab [1.8K]
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For the others, they are hydrocarbons.
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7 0
3 years ago
The alkline earth metals include?
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