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Alex73 [517]
3 years ago
7

What is the relationship between melting/boiling point and intermolecular forces

Chemistry
1 answer:
sattari [20]3 years ago
8 0
Boiling points are a measure of intermolecular forces. The intermolecular forces increase with increasing polarization of bonds. Boiling point increases with molecular weight, and with surface area.
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1) Rank the elements, aluminum, sodium and phosphorus, in order of decreasing conductivity.
miss Akunina [59]

Conductivity is the ability of a substance to allow charge or electricity to pass through it. Metals have a lot of free electrons and are considered as good conductors while non-metals do not conduct electricity

1) In the given examples:

Al is a metal, Na is an alkali metal while P is a non-metal

The decreasing order of conductivity would be:

Al > Na > P

2)

Both Al and Ga are metals while B is metalloid.

Among Al and Ga, Al is a solid at room temperature and a better conductor of electricity. hence the decreasing order would be:

Al > Ga > B

8 0
4 years ago
After James Chadwick discovered the neutron, atomic theory expanded to include isotopes. Isotopes have many practical uses. For
andrew-mc [135]

Answer:

The answer is C which is 8 neutrons

Explanation:

This is because all carbon isotopes have 6 protons in their nucleus. Carbon 14 have 2 extra neutron aside from only having 6. So 6 protons + 6 neutrons + 2 more extra makes 14 which makes it Carbon - 14. I hope this makes sense.

8 0
3 years ago
If a 50 N force pulls on a 10 kg object,how much acceleration will occur?
meriva
Assuming that the force of friction does not equal to the force at which you are pulling at, hence Fnet is not zero, to solve for acceleration need to use the following equation:

Fnet = ma
a = Fnet/m
a = 50 N/10 kg
a = 5 N/kg or a = 5 m/s^2.
4 0
4 years ago
Read 2 more answers
Some Reactions are endothermic
Alinara [238K]

Answer:

endothermic means energy is taken in and temperature increases.

8 0
4 years ago
How to tell if the self ionization reaction is endothermic
enot [183]

If the self ionization reaction is endothermic then it will shift on right side from equilibrium if we increase the temperature.

<h3>What is endothermic reactions?</h3>

Endothermic reactions are those reactions in which heat or energy is absorbed by the reactants for the formation of product.

If the self ionization reaction is endothermic in nature then in this condition at the equilibrium if we increases the temperature then the formation of ions increases as a result of the shift of the reaction towards the right side.

Hence, by increasing the temperature we can predict whether the reaction is endothermic or not.

To know more about endothermic reaction, visit the below link;

brainly.com/question/1447631

#SPJ4

8 0
3 years ago
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