For this assignment, you will create a poster that illustrates how a change in thermal energy affects the kinetic energy, partic
1 answer:
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Answer:
c. HF can participate in hydrogen bonding.
Explanation:
<u>The boiling points of substances often reflect the strength of the </u><u>intermolecular forces</u><u> operating among the molecules.</u>
If it takes more energy to separate molecules of HF than of the rest of the hydrogen halides because HF molecules are held together by stronger intermolecular forces, then the boiling point of HF will be higher than that of all the hydrogen halides.
A particularly strong type of intermolecular attraction is called the hydrogen bond, <em>which is a special type of dipole-dipole interaction between the hydrogen atom in a polar bond</em>, such as N-H, O-H, or F-H, and an electronegative O, N, or F atom.
Answer:
Coefficient of is more than 4
Explanation:
Oxidation:
- Balance charge:
......(1)
Reduction:
- Balance Cr:
- Balance O and H in acidic medium:
- Balance charge:
.......(2)
gives balanced equation:
So coefficient of is more than 4