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2 years ago

7

What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with

mass = 65.32 amu?
(a) 65.3 amu
(b) 64.4 amu
(c) 64.9 amu
(d) 65.0 amu
(e) 64.8 amu

1 answer:

matrenka [14]2 years ago

8 0

I think it should be A or D

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Metallic elements can be recovered from ores that are oxides, carbonates, halides, or sulfides. Give an example of each type.

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Ores which is deposited in earth's crust which contain minerals and metals. Metals can be obtained economically and sold commercially.

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As we get to know that it is easy to obtain metals from their oxides. So, firstly ores which is found in the form of carbonates and sulphide are converted into their oxides by using the process of calcination and roasting.

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Consider the ICE take for the formate ion as:

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At t =equilibrium (0.35-x) x x

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Solving for x, we get:

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