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3 years ago

What are the intermolecular forces that exist between molecules of NH3, H2O and HF called ?

Chemistry

1 answer:

Ivenika [448]3 years ago

4 0

I think, is HYDROGEN BOND!
This is some kind of is the electrostatic attraction between polar molecules that occurs when a hydrogen (H) atom bound to a highly electronegative atom such as nitrogen (N), oxygen (O) or fluorine (F)... see image below! ;-)

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If an atom has 43 electrons, 50 neutrons, and 43 protons, what is it's approximate atomic mass? what is the name of this element

Flauer [41]

I believe the answer to your question would be Fluorine. I hope I answered your question, my friend. :)

4 0

3 years ago

for each metal that participated in a chemical change, right type of metal that is based on your examination of the periodic tab

CaHeK987 [17]

I guess the answer <span>can be an alkali metal, alkaline earth metal, or transition metals.

Hope this helps :)

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3 0

3 years ago

A student wants to increase the rate at which his powdered drink dissolves in water.

Neporo4naja [7]

Answer:

A Increase the temperature of water

Explanation:

You can look on sciencing.com for expanation

4 0

2 years ago

Read 2 more answers

3. A sample of octane (C3H18) gas has a mass of 1.135 g at a volume of 400. cm'3 and a temperature

boyakko [2]

<h3>Answer:</h3>

9.65 atm

<h3>Explanation:</h3>

From the question, we are given;

Mass of octane is 1.135 g
Volume of octane is 400 cm³ or 0.4 L
Temperature of octane is 200°C

But, K = °C + 273.15

Therefore, the temperature is equivalent to 473.15 K

We are required to calculate the pressure of the gas.

To do this, we are going to use the ideal gas equation;

According to the ideal gas equation;
PV = nRT, where n is the number of moles, R is the ideal gas constant, 0.082057 L.atm/mol.K

We can rearrange the formula to calculate the pressure;

P = nRT ÷ V

But, n is the number of moles;

Moles = Mass ÷ Molar mass
Molar mass of octane is 114.23 g/mol

Moles of octane = 1.135 g ÷ 114.23 g/mol

= 0.00994 moles

Therefore;

$P = \frac{(0.00994 moles)(0.082057)(473.15)}{0.4L}$

$P=9.648atm$

P = 9.65 atm

Thus, the pressure of the gas is 9.65 atm

5 0

2 years ago

In their elemental forms, the halogens are Select one: a. strong oxidizing agents. b. strong reducing agents. c. strong acids. d

Jet001 [13]

Answer:

Explanation:

Halogens have 7 electrons in their valence shell and requires just one electron to achieve their stable structure. Because of this they have high electron affinity and hence high electronegativity and they are strong oxidizing agents. Oxidation is the loss of electrons . Halogens have a high readiness to take electrons which a metal loses thereby oxidizing it. The other options are wrong as they involve compounds and not the elemental form as stated in the question.

3 0

3 years ago