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
PLZ HELP I HAVE 5 MIN!! how do waves transport energy?
nataly862011 [7]

Answer:

'Wave' is a common term for a number of different ways in which energy is transferred: In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.

Explanation:

5 0
3 years ago
Read 2 more answers
How many electrons are there in an atom of carbon?​
Mashutka [201]

Answer:

if its a neutral atom there should be 6 electrons because there are 6 protons

Explanation:

8 0
3 years ago
There are two isotopes of chlorine. below is a list of each and their mass and abundance. calculate the atomic mass of chlorine.
Vesna [10]
Chlorine is very lequid structure
6 0
3 years ago
When liquid silver nitrate and liquid sodium chloride are combined it becomes
Maru [420]

Answer:

solid silver chloride forms along with a new liquid, sodium nitrate

Explanation:

6 0
3 years ago
"Which statement is true about the removal of a terminal phosphate" from ATP? Choose one: A. The reaction is associated with a p
Mamont248 [21]

Answer:

C. The reaction is energetically favorable.

Explanation:

The reaction which shows the removal of the terminal phosphate from the ATP is shown below:

ATP+H_2O\rightarrow ADP+P_i+\ energy

The Gibbs' free energy change of this reaction, \Delta G^0=-7.3\ kcal/mol

Hence, Option A is not correct.

It is a type of hydrolysis reaction in which water is being added to the molecule.

Hence, Option B is not correct.

The Gibbs' free energy change is negative which means that the reaction is energetically favorable.

Option C is correct.

6 0
3 years ago
Other questions:
  • What is the [pb2+] in a solution made by adding 100 g of pbcl2(s) (mm = 278.1 g/mol) to a 5.4 m solution of nacl and allowing it
    5·1 answer
  • Suppose you want to separate a mixture of the following compounds: salicylic acid, 4-ethylphenol, p-aminoacetophenone, and napth
    11·1 answer
  • Question 1 (1 point)
    11·1 answer
  • Which statement correctly evaluates the results of the report?
    11·1 answer
  • Let’s say we start with 2.2lbs of uranium. If the half-line of U-235 is 703.8 million years, how much uranium will we have after
    8·1 answer
  • When you heat water, more sugar can be dissolved in it.
    11·1 answer
  • Non example of electrical energy
    15·1 answer
  • What element has two electrons in the outer most shell
    6·1 answer
  • Predict the effect of an eightfold pressure increase on the equilibriunm composition of the reaction 3 Nalg) + H21g) =2 NaHlg)​
    7·2 answers
  • What are the elements in an ionic bond?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!