Group 18 is likewise called the noble gases - because they have complete valence shells it way they space stable and won"t chemically react.




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How countless electrons does every oxygen atom share with the other oxygen atom so that each atom has an octet?

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B or C it seems ~ most suitable

Explanation:

Memorising the apperaranve the a distinctive flower, is no the best easy come prove something, since you could have just seen the summary in a book, and it is least likely you will certainly be believed.



A sample the Manganese (II) chloride has actually a fixed of 19.8 grams prior to heating, and also 12.6 grams after ~ heating till all the water is

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no. The water molecules linked to every molecule of

*
= 4

Explanation:

Mass that

*
prior to heating = 19.8 g

Mass the

*
after heating = 12.6 g

Difference in fixed of

*
before and after heating

= 19.8 - 12.6 = 7.2 g

Difference in mass synchronizes to fixed of water moved out.

Molar mass of water = 18 g/mol

No. Of moles of water =

*

Mass the

*
derived after heater is fixed of anhydrous
*
.

Mass of anhydrous

*
= 12.6 g

Molar massive of

*
= 125.9 g/mol

No. That mol the anhydrous

*
=
*

so,

0.1 mol that

*
have actually 0.4 mol of water

1 mol that

*
will have actually =
*

Hence, no. Of water molecules associated to each molecule that

*
= 4


5 0
1 year ago
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