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beks73 [17]
2 years ago
8

Have you ever seen ash fly upward from a campfire? Use at least 2 sentences to explain what you think is happening to the ash to

make it rise and which type of heat transfer is sending this ash into the sky.
Chemistry
2 answers:
vladimir2022 [97]2 years ago
5 0
Heat rises causing any substance with less density to rise up with it. this is done through convection.
Advocard [28]2 years ago
3 0

Answer:

Convection

Explanation:

there are two types of heat transfer happening in this example.  The first one is convection. As air is heated, it expands.  As it expands, it becomes lighter than the surrounding air and it rises. It becomes ash. The second type of heat transfer happening is radiation. It is the type of heat one feels when sitting in front of a fireplace or around a campfire, As it is in this example. Hope I helped!

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Volume and moles are __________ related. This relationship can be calculated by using ___________ Law.
Kryger [21]

Answer:

The correct answer is - directly; Avogadro’s.

Explanation:

At the same temperature and pressure, gases of the same or equal volume have the same number of molecules. The relation between the moles of the gases and the volume of the gases are indirectly proportional to one another at the same temperature and pressure. This law is called Avogadro's law. In the case of an ideal gas of a particular mass has the volume and moles are directly proportional.

Thus, the correct answer is - directly; Avogadro’s.

6 0
3 years ago
♔♔Can water stay liquid below zero degrees Celsius?✞♡♡♡​
astra-53 [7]

Answer:

Yes, water can stay liquid below zero degrees Celsius. There are a few ways in which this can happen. The freezing point of water drops below zero degrees Celsius as you apply pressure. When we apply pressure to a liquid, we force the molecules to get closer together.

Explanation:

Hope this helps you. Have a nice day.^_^

Please mark as brainliest. It helps a lot:)

6 0
2 years ago
Read 2 more answers
The charge on a magnesium ion is +2. When it formed an ionic compound with another element, it lost 2... what?
Naya [18.7K]

Answer:  electrons

Explanation:  Electrons have a charge of -1 each.  If two left, the remaining atom would have a positive +2 change.

6 0
2 years ago
Cell Membranes
Lerok [7]

The procedure to perform a cell membrane experiment is to:

  • Use beetroots cells to measure the permeability of the membrane
  • This is done to check the content of the pigment
  • It is also meant to check the pigment leaks out of the cells.

<h3>What is a Cell Membrane?</h3>

This refers to the semi-permeable membrane that is around the cytoplasm of a cell.

Hence, we can see that the main purpose of the cell membrane practical experiment is to test the permeability of a membrane and to see the amount of liquid that a membrane can hold.

Please note that your question is incomplete so I gave you a general overview to get a better understanding of the concept.

Read more about cell membrane here:

brainly.com/question/1768729

#SPJ1

4 0
2 years ago
What's what's the Lewis structure for 2H2O ​
Umnica [9.8K]

Lewis Structure:

H -- O -- H (bent, Oxygen has 2 lone pairs)

Percent Composition

Hydrogen percent composition = [ 2 * (Hydrogen mass) ] / [Total mass of H2O]

Oxygen percent composition = [Oxygen mass] / [Total mass of H2O]

dose this make any sense...??

5 0
3 years ago
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