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3 years ago

11

What are the intermolecular force

2 answers:

N76 [4]3 years ago

8 0

Intermolecular forces are the forces which mediate interaction between molecules, including forces of attraction or repulsion which act between molecules and other types of neighboring particles.

Colt1911 [192]3 years ago

8 0

Intermolecular forces are the attractive or repulsive forces between molecules. They are separated into two groups; short range and long range forces.

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Please help me out if your good at science:)ill mark brainliest if correct

ycow [4]

D. Helps diagnose health problems

6 0

3 years ago

6) A 14.5 g sample of sodium chloride reacts with excess fluorine gas according to

Ann [662]

The mass of chlorine gas produced by 14.5 grams of sodium chloride is 10.42 g.

The mass of chlorine gas produced by 14.5 grams of sodium chloride is 8.81 g.

The given parameters;

<em>mass of the sodium chloride, = 14.5 g</em>
<em>2NaCl(s) + F2(g) → 2NaF(s) + Cl2(g)</em>

<em />

In the reaction above, we can deduce the following;

molecular mass of 2Nacl = 2(58.44) = 116.88 g

molecular mass of 2NaF = 2(42) = 84 g

molecular mass of Cl2 = 71 g

The mass of sodium fluoride produced by 14.5 grams of sodium chloride is calculated as follows;

116.88 g of NaCl --------------- 84 g of NaF

14.5 g of NaCl ------------------- ?

$= \frac{84 \times 14.5}{116.88} \\\\= 10.42 \ g$

The mass of chlorine gas produced by 14.5 grams of sodium chloride is calculated as follows;

116.88 g of NaCl --------------- 71 g of Cl2

14.5 g of NaCl ------------------- ?

$= \frac{14.5 \times 71}{116.88} \\\\= 8.81 \ g$

Learn more here:brainly.com/question/8470145

8 0

3 years ago

Can someone explain me why the molar mass become 90.12 g/mol and when I calculated it's 90 g/mol?

e-lub [12.9K]

Answer:

It could be because of rounding error somewhere in your calculations. Another thing to note is 90 +/- 4 g/mol.

Your calculations don't have to be spot on.

8 0

3 years ago

How many atoms of gold (Au) are equal to 212g of gold?

Lostsunrise [7]

Given :

Mass of gold ( Au ) is 212 gram.

To Find :

Atoms of gold present in 212 gram of gold.

Solution :

Molecular mass of gold is 197 gram.

So, number of moles of gold in 212 gram is :

$n = \dfrac{212}{197} \ moles\\\\n = 1.076 \ moles$

Now, we know 1 mole of any element contains $6.022 \times 10^{23}$ atoms.

So, number of atoms present in 1.076 moles are :

$N = 1.076 \times 6.022\times 10^{23}\\\\N = 6.48 \times 10^{23}$

Hence, this is the required solution.

8 0

3 years ago

Thermal energy naturally flows from _________ matter to _______ matter.

Firlakuza [10]

Answer:

Warmer

Cooler

Explanation:

5 0

3 years ago