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coldgirl [10]
3 years ago
10

Jill then wrote the formulas for all the possible compounds that sodium can form with the other ions. What formulas did she writ

e?
Chemistry
1 answer:
sp2606 [1]3 years ago
4 0

Explanation:

Sodium has atomic number of 11 and its electronic configuration is given by:

[Na]=1s^22s^22p^63s^1

The nearest stable electronic configuration to sodium is of the neon. So, in order to attain stability of noble gas it will loose its single electron.

Na\rightarrow Na^++1e^-

[Na^+]=1s^22s^22p^63s^0

Sodium has single valency that is 1.

Let nbe the valency of the ion 'X'

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

Na_nX_1

So, the formulas for all the possible compounds that sodium can form with the other ions will be:

Na_nX_1

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A silver cube with an edge length of 2.42 cm and a gold cube with an edge length of 2.75 cm are both heated to 85.4 ∘C and place
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Answer:

Explanation:

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mass of silver cube = volume x density

= 14.17 x 10.49 = 148.64 gm

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mass of gold cube =  20.8 x 19.3 = 401.44 gm

specific heat of silver and gold are .24 and .129 J /g°C

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Heat absorbed = heat lost = mass x specific heat x temperature fall or rise

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= 112 x 1 x ( T - 20.5 )

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199.45 T = 9764.23

T = 48.95° C

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