1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeka94
3 years ago
11

What causes hot air to rise, and cool air to sink?

Chemistry
1 answer:
nataly862011 [7]3 years ago
8 0

Answer:

hot air rises because gases expand as they heat up.When air heats up and expands,its density also increases.The warmer,less dense air effectively floats on top of the colder, dense air below it. This creates a buoyant force that causes warmer air to rise.

cold air sinks because it is heavier as its more dense ( because of closely packed molecules) soits harder for them to move and they absorb less energy. Also, gravity pulls on it more strongly.

Hope it helps :)

You might be interested in
I need help with problems 11-13 please. I’m very confused on how to find Volume when there’s no specific shapes and numbers.
Rudik [331]

Answer:

To find volume you can either look at the displacement of the water or Length•Width•Height

Explanation:

11) 12

12) 340 mL

13) 196 m\

8 0
3 years ago
Determine whether a solution of the compound given will rotate light when subjected to polarimetry. Is a solution of compound A
kumpel [21]

Answer:

The question is incomplete. the compound wasn't attached to the question. Find attached of the compound and the answer too.

1. No

2. No

3. Yes

4. Yes

Explanation:

See the attached file for the answer.

7 0
3 years ago
which of the following actions can result in decreasing the pressure of a gas inside a sealed container: increasing the collisio
nekit [7.7K]
Decreasing the speed at which particles move. 
That is the answer because less speed involves less energy to move each particle which translates to less energy being exerted on the container when the particle and the container collide. That would result in less pressure.
4 0
3 years ago
Which of the following is a property of nonmetals? A. Nonmetals are ductile. B. Nonmetals have high density. C. Nonmetals are no
hjlf
D Because most metals are solid and shiny
4 0
3 years ago
Read 2 more answers
A compound is found to have a molar mass of 598 g/mol. if 35.8 mg of the compound is dissolved in enough water to make 175 ml of
TiliK225 [7]
The computation for molarity is: 
(x) (0.175 L) = 0.0358 g / 598 g/mol 
x = 0.000342093 M 
Whereas the osmotic pressure calculation: 
pi = iMRT 
pi = (1) (0.000342093 mol/L) (0.08206 L atm / mol K) (298 K) 
pi = 0.0083655 atm 
Converting the answer to torr, will give us:
0.0083655 atm times (760 torr/atm) = 6.35778 torr 
which rounds off to 6.36 torr
7 0
3 years ago
Other questions:
  • What is the concentration of a solution of HCl in which a 10.0 mL sample of acid required 50.0 mL of 0.150 M NaOH for neutraliza
    6·1 answer
  • Which of the following is the energy possess by an object place on top of table​
    11·1 answer
  • What is the frequency of light with an energy of 124 kJ/mol?
    9·1 answer
  • The table below lists the properties of a metallic element. Shiny, Silver colored, Forms +1 and +2 ions, compound with sulfur is
    7·2 answers
  • When boiling water begins to turn to steam, which of the following remains the same in both the liquid and the vapor
    11·2 answers
  • In the titration of acetic acid, CH3COOH, a 0.20 M solution of NaOH is used. A volume of 15.00 mL of CH3COOH solution is
    5·1 answer
  • Part 1: Name two elements that have the same properties as potassium (K). (4 points)
    5·2 answers
  • WHAT IS THISS SOMEONE PLEASE HELP MEEE
    11·1 answer
  • The reaction below is at equilibrium. What would happen if more sodium<br> were added?
    14·2 answers
  • CH3CH2OH+3O2 2CO2+3H20 ( ethanol) explain this equation! if u didn't understand the wat I have written could u text in personal
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!