All categories

3 years ago

Select all the correct answers.

Chemistry

2 answers:

Salsk061 [2.6K]3 years ago

7 0

Answer:

The vapor pressure is produced by water molecules that have evaporated.

The vapor pressure increases as the Sun heats the water in the pot.

Explanation:

The rate of vaporisation increases with increase in temperature therefore the increase in Sun’s heat will increase the rate of evaporation.

Gas molecules have a lower intermolecular attraction and a higher kinetic energy. When liquids get heated the kinetic energy of the liquid molecule increases which help them to overcome the intermolecular force of attraction at the surface of the water molecules, thus allowing the liquid molecules to escape into the gas phase.

gtnhenbr [62]3 years ago

3 0

Answer:

I believe two correct statements are;

The vapor pressure is produced by water molecules that have evaporated.

The vapor pressure increases as the Sun heats the water in the pot.

Explanation:

You might be interested in

(IMAGE ATTACHED)<br>I dont know what this is asking me, anyone know how to do this?

kvv77 [185]

Answer:

Oh, you need to get the blue dots, and move them to the table or graph to plot them!

Hope that makes sense!

3 0

3 years ago

What is the empirical formula of a compound containing carbon, hydrogen, and oxygen in the ratio 14:42:84? C14H42O84

kati45 [8]

C:H:O = 14:42:84 = 7:21:42 = 1:3:6

CH₃O₆

6 0

4 years ago

Read 2 more answers

Which of the following statements are correct? More than one answer may be correct.

garri49 [273]

Answer:

E, only one statement is correct

Explanation:

Absorption is favoured by heating the solution containing the colored impurity.

Pleaseee! Mark me brainliest

4 0

2 years ago

Imagine that you helped to discover a new element; A=302;Z=119. How many protons, electrons, and neutrons are in each atom it th

oee [108]

Explanation:

Given that,

Mass number, A = 302

Atomic number, Z = 119

We know that, atomic number = no of protons

Protons = 119

Mass no. = No. of neutrons + No. of protons

302 = No. of neutrons + 119

No. of neutrons = 302 - 119

= 183

No. of electrons = No. of protons

= 119

5 0

3 years ago

A compound is found to contain 38.65 % carbon, 16.25 % hydrogen, and 45.09 % nitrogen by mass. what is the empirical formula for

iren [92.7K]

The molar mass of carbon is 12, hydrogen is 1, and nitrogen is 14, hence the ratio are:

C = 38.65 / 12 = 3.22

H = 16.25 / 1 = 16.25

N = 45.09 / 14 = 3.22

Divide the three by the lowest ratio which is 3.22:

C = 3.22 / 3.22 = 1

H = 16.25 / 3.22 = 5

N = 3.22 / 3.22 = 1

So the empirical formula is:

CHN

5 0

3 years ago