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monitta
3 years ago
13

Pls help!!!!!

Chemistry
2 answers:
umka2103 [35]3 years ago
7 0
The exact positions of the electrons in an atom cannot be determined because electrons are always .
erica [24]3 years ago
3 0

Answer:

moving i think! Hope this helps

Explanation:

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Diffusion is a general term referring to the net movement of atoms and molecules along a concentration gradient, from an area of
aniked [119]

Answer:

Higher concentration to an area of lower concentration

Explanation:

When you open a perfume bottle at a corner of a room, after a while, its fragrance can be perceived across a distance at the other end of the room. This is because, molecules of the compound in the fragrance have moved from the area of higher concentration in the perfume bottle, across a concentration gradient to a region of lower concentration at the other end of the room. This is diffusion.

7 0
3 years ago
Reduction occurs at the cathode in
mina [271]

Explanation:

option 2) voltaic cells only

<em><u>I </u></em><em><u>guess </u></em><em><u>so </u></em><em><u>this </u></em><em><u>is</u></em><em><u> </u></em><em><u>the </u></em><em><u>answer</u></em><em><u> </u></em><em><u>or </u></em><em><u>not </u></em>

8 0
3 years ago
Read 2 more answers
A 48 kg sample of water absorbs 366 kJ of heat. the water was initially at 20.3 ∘C, what is its final temperature?
belka [17]

Answer:

The final temperature of water = 22.1224 °C

Explanation:

<u>Step 1</u> : defien the formula for heat transfer

q = m*c*ΔT

with q = heat transfer

with m = mass of the substance

with c = specific heat ( of water in this case)

with ΔT = difference between final temperature and initial temperature

In this case :

q=366kJ = 366 *10^3 J

mass of water = 48kg = 48000g

c= specific heat of wwater = 4.184 J / g °C

initial temperature = 20.3 °C

final temperature =  TO BE DETERMINED

<u>Step 2</u>: Calculate temperature

366000 J = 48000g * 4.184J/g °C * (T2 - 20.3)

366000 / (480000 * 4.184) = 1.8224 = (T2 - 20.3)

T2 = 20.3 + 1.82 =22.1224 ° C

The final temperature of water = 22.1224 °C

8 0
3 years ago
How does chemistry affect sports?
katrin [286]

Answer:

c

Explanation:

4 0
3 years ago
Once heat from the Sun penetrates the Earth's atmosphere, the heat is circulated as warm air rises and cold air sinks. What is t
antoniya [11.8K]
Convection                      ~~~~~~~~~~~~~~~~~~~~~~~~~`
6 0
4 years ago
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