Answer:
one valence electron
Lithium has a single electron in the second principal energy level and so we say that lithium has one valence electron. Beryllium has two valence electrons.
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Answer:
The correct answer is because the molecular structure.
Explanation:
The difficulty of ammonia and methane to be represented on paper is due to the molecular structure. These compounds have a three-dimensional projection with defined angles. Ammonia presents angles of 109.5º between the atom of Nitrogen and those of Oxygen. The ammonia presents 107.8º between the oxygen atoms.
In the methane molecule, there is 109.5º between the hydrogen molecules and the carbon atom. This results in the need for a 3D representation of the molecule.
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Answer:
Explanation:
Hello,
In this case, the undergoing chemical reaction turns out:
In such a way, by means of the mass of law action for such reaction, which is given below:
And in terms of the change 
due to reaction extent:
results:
In such a way, Kp:
Nonetheless, K is asked instead of Kp, thus:
Whereas:
Which is the change in the moles of gaseous species chlorine and carbon tetrachloride. Hence, we finally obtain:
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The answer is A it’s tall
dissolves easily in water
has a high boiling point
has a high melting point
conducts electricity when melted
Explanation:
Salts are ionic compounds. Ionic compounds are formed when two atoms exchange their valence electrons. One atom gains and the other atom loses.
Generally, ionic compounds have the following properties:
- They are usually hard solids with high melting points or liquids with high boiling points.
- They are soluble in water and insoluble in non-polar solvents. This is conforms with the solubility rule that like dissolve like.
- In aqueous solution or molten form, ionic compounds conducts electricity.
- They take part in very fast chemical reactions.
Learn more:
Ionic compounds brainly.com/question/6071838
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