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Alja [10]
3 years ago
7

The formula of water, H2O suggests which of the following?

Chemistry
1 answer:
o-na [289]3 years ago
6 0

Answer: A. There are two hydrogen atoms and one oxygen atom per water molecule.

Explanation:

The chemical formular for water "H2O", means it contain 2 hydrogen atoms and one oxygen atom per molecule.

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What is another word for chemical change
satela [25.4K]

oxidisation.

decomposition reaction.

displacement.

chemical decomposition reaction.

neutralisation reaction.

chain reaction.

chemical action.

reducing.

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Why is water (h2o) considered to be a polar molecule?
Klio2033 [76]
A water molecule, because of its shape, is a polar molecule.
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3 years ago
Draw the lewis structure of the hypochlorite ion clo- . include lone pairs
Dmitry_Shevchenko [17]

Solution:- Hypochlorite ion ClO^- has one Cl and one O atom. Cl has 7 valence electrons and O has 6 valence electrons. Since there is one negative charge on the ion,

total valence electrons = 7 + 6 +1 = 14

(note:- if there is negative charge then it is added  and if there is positive charge then it is subtracted while calculating the valence electrons)

Both Cl and O atoms wants to complete their octet and so for this we put a single bond between them. Single bond means two electrons, so the remaining electrons would be 14 - 2 = 12

It means 12 electrons will be placed as lone pair of electrons. To complete the octet, we put 6 dots around each of the atom. Oxygen is more electron negative than Cl, so we show the -1 charge for oxygen.


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3 years ago
What is the mass number of beryllium
kakasveta [241]

Answer:

9.012182 u

Explanation:

3 0
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