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2 years ago

10. Summarize the effect of hydrogen bonding on boiling point.

Chemistry

1 answer:

oksano4ka [1.4K]2 years ago

7 0

Answer:

10. it increases the boiling point because it is a stone bond and will require much energy to break it.

11.So, to boil liquid water, all hydrogen bonds have to be broken and it requires a large amount of energy. This isn't the case in HF; all hydrogen bonds need not to be broken, and therefore a lesser amount of energy is required. So HF boils at a much lower temperature as compared to water even though F has high electronegativity but the force of attraction or the intermolecular is is weak

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100 billion in scientific notation?

bulgar [2K]

Answer: 1×10^11

Explanation:

concept to know: scientific notation must be written in the form of a × 10^b

where 0<a<10.

100 billion= 100,000,000,000

there are 11 zeros after 1

1 × 10^11

Hope this helps!! :)

3 0

4 years ago

Read 2 more answers

3) In 5 electron group molecules, what is the difference between axial and equatorial positions? Which groups are removed as lon

shusha [124]

The axial positions the bond angle is 120 degrees and in equatorial positions the bond angle is 90 degrees.

Functional groups on central atom gets reduce if lone pairs are added.

Explanation:

The number of lone pairs and base pairs of electrons tells the geometry of the molecule.

VSEPR Theory helps to know the lone pairs and bond pair electrons on the centre atom of the molecule.

Example of molecule containing 5 electron pairs can have four bond pairs and 1 lone pair.

eg: Cl $F_{3}$

the repulsion is shown as

lp-lp> lp-bp>bp-bp

These are in equatorial position because of the repulsion of lone pairs.

It can have 2 lone pairs and 3 bond pairs. eg. Xe $F_{2}$

Lone pairs in this is also in equatorial position as

lp-lp> lp-bp> bp-bp

In axial positions the bond angle is 120 degrees

in equatorial positions the bond angle is 90 degrees, due to the repulsion in lone pair of electrons.

If 1 lone pair is there it can be replaced by bonding with hydrogen.

If 2 lone pairs are there then bonding with oxygen is there. The covalent bond is formed.

7 0

3 years ago

Write formulas and names for two binary molecular compounds

lyudmila [28]

Answer:

NaCl sodium chloride

HF hydrogen flouride

Explanation:

7 0

3 years ago

Ammonium carbonate has the chemical formula (NH42CO3How many hydrogen atoms (H) are in ammonium carbonate?

Gre4nikov [31]

Answer:

Explanation:

there are two ammonium ions with four hydrogen atoms each.

4*2=8

6 0

3 years ago

A. 2-methyl-5-Bromo-3-pentene b. 1-Bromo-4-methyl-2-pentene ATTACHMENT BELOW

masya89 [10]

I think a is the correct answer

3 0

3 years ago