All categories

3 years ago

The presence of hydrogen bond in most molecules is responsible for the following except

Chemistry

2 answers:

-Dominant- [34]3 years ago

5 0

That answer is either 3 or 4, but I truly forgot which of the two.

Rom4ik [11]3 years ago

4 0

Answer:

3. low boiling point

Explanation:

There are primarily 4 types of intermolecular forces which exists between molecules. In the increasing strength, these forces can be grouped as:

Ionic bond > hydrogen bonds > dipole-dipole > dispersion forces

Hydrogen bond is essentially a bond formed between H-atom and a highly electronegative atom like N, O, F etc. These are strong forces of attraction. Greater the H-bonding greater is the attractive force which will result in molecules having high melting and very high boiling points. It will also increase the polarity of the molecule making it more soluble in water.

You might be interested in

A student heats 10.52 g of sodium hydrogen carbonate in a crucible until the compound completely decomposes to sodium carbonate

saveliy_v [14]

Answer:

$m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3$

Explanation:

Hello!

In this case, since the decomposition of sodium hydrogen carbonate is:

$2NaHCO_3(s)\rightarrow Na_2CO_3(s)+H_2O(g)+CO_2(g)$

Thus, since there is a 2:1 mole ratio between the sodium hydrogen carbonate and sodium carbonate, and the molar masses are 84.01 and 105.99 g/mol respectively, we obtain the following theoretical yield:

$m_{Na_2CO_3}^{theoretical}=10.52gNaHCO_3*\frac{1molNaHCO_3}{84.01gNaHCO_3}*\frac{1molNa_2CO_3}{2molNaHCO_3} *\frac{105.99gNa_2CO_3}{1molNa_2CO_3}\\\\ m_{Na_2CO_3}^{theoretical}=6.636gNa_2CO_3$

Best regards!

4 0

2 years ago

In this redox reaction, identify the reducing agent.

postnew [5]

The answer would be MgO, as you spilt the two.

5 0

3 years ago

How does the Bohr model show you an atom has become an ion?

Step2247 [10]

An early model of the atom was developed in 1913 by Danish scientist Niels Bohr (1885–1962). The Bohr model shows the atom as a central nucleus containing protons and neutrons with the electrons in circular orbitals at specific distances from the nucleus . These orbits form electron shells or energy levels, which are a way of visualizing the number of electrons in the various shells. These energy levels are designated by a number and the symbol "n." For example, 1n represents the first energy level located closest to the nucleus.

6 0

3 years ago

before the quarry was dug, the land contained more vegetation . what impact has this change most likely had on the local ecosyst

Sergio039 [100]

It was loss of nutrients, I think

Explanation:

The quarry was dug up and vegetation started dying. The quarry was probably rich with nutrients

Please brainliest !! ❤️

5 0

3 years ago

How many moles are in 4.24kg of Na2CO3?

frosja888 [35]

40.0 is the answer, sorry, I had some lag, I would've answered it like 5 minutes ago

Hope I helped

8 0

3 years ago