A(n) Blank is an abbreviation for the name of an element ans usully has either one or to letters

Answers

Answer 1

Answer: symbol (elemental symbol)

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What do physical changes do?

Answers

Great question!

Physical changes change the appearance of something or someone.

For example, let's say 2 cats get into a fight. One is left clean in the end of this, with no scratches or bites anywhere, so nothing has happened to it as a physical change.

However, the other cat is left scarred and with bite marks everywhere. All this has left the cat's once-beautiful coat now ragged and torn up. This is an example of a physical change.

↑ ↑ ↑ Hope this helps! :D

Answer:

affect the size, shape, and phase of a substance

Explanation:

Explain whether smoke filling up a room is diffusion or not.

Answers

yes it is diffusion ..
explanation :
diffusion is the movement of particles from high concentration to low concentration ..
as the smoke rises at one corner of the room soon it spreads all over the room which is simply diffusion ..

Yes this is diffusion because diffusion is the movement of particles from high concentration to low concentration, so when smoke go up in one corner then the smoke goes all over the room which is diffusion.

Easy Question! Chemistry - Please help! I give thanks - It's the picture - Question 2

Answers

Volume of a cylinder = $\pi r^(2) h$
r = $(D)/(2)$
  = $(8.4cm)/(2)$
  = 4.2cm

h = 14.5cm
$\pi$ = 3.14

V= (3.14) * ( $(4.2cm)^(2)$ )*  14.5cm
= 803.1 $cm^(3)$

What are the three states in which most matter occurs

Answers

solid, liquid, and gas.

Solids, liquids, gas'

What happens when a gas reaches a cold surface and it changes into a liquid

Answers

To change phases, a substance either gains or looses energy. If a substance gains energy, it will become more exited and the molecules will spread out. An example of this is water boiling into gas. If it looses energy, the molecules will become less exited and come closer together. For example, freezing water takes away energy from molecules, changing it from liquid to solid

When a gas reaches a gold surface, it looses much of the energy that it had, so the gas condenses from gas to liquid phase.

Hope this helped!! :D

Final answer:

Condensation occurs when a gas comes into contact with a cold surface and transforms into a liquid. This transition occurs because the gas particles lose energy and their intermolecular forces draw them together. An example of this is when the warm breath condenses on a cold window.

Explanation:

When a gas reaches a cold surface, it experiences a phase transition known as condensation. During this process, the gas particles lose energy due to the low temperature, which slows down their motion and allows intermolecular forces to draw them closer together, thus transforming the gas into a liquid.

For instance, when you breathe on a cold window, the water vapor in your breath condenses on the glass surface into tiny liquid droplets. Similarly, when high atmospheric pressure forces a gas like carbon dioxide to transition into a liquid, it's known as condensation.

Deposition is a similar process where a gas transform directly into a solid, bypassing the liquid state. For example, the formation of frost is a result of deposition where water vapor turns directly into ice crystals. However, this phenomenon is different from the situation described in your question.

Learn more about Condensation here:

brainly.com/question/15563071

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tiny time has decided to make 288 tricycle each day. how many tricycle seats, wheels ,and pedals are needed ?

Answers

seats- 288

wheels- 864

pedals- 576

hope this helps

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