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Elza [17]
3 years ago
14

Pure substance can be __ and __

Chemistry
1 answer:
Aleksandr [31]3 years ago
4 0
It can be an element or a compound
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The image shows particles of salt dissolved in water.
aalyn [17]

Answer:

Salt particles will diffuse and towards where it is less that is left !!

so your answer is A !! left through diffusion !!

Explanation:

6 0
3 years ago
Read 2 more answers
What is the percent composition of CuO if a sample of CuO with a mass of 62.5 g contains 12.5 g of oxygen (O) and 50 g of Cu
Arlecino [84]

Percent (%) Composition of CuO

Cu = 1 x 50g      - Multiply by one as there is one Cu

O = 1 x 12.5g      - Multiply by one as there is one O

CuO = 62.5g

% for Cu = 50g over 62.5 multiplied by 100 = 80%

% for O = 12.5g over 62.5 multiplied by 100 = 20%

Final Answer :

<em>Percent (%) Composition of CuO = </em>80% (Cu) & 20% (O)

7 0
3 years ago
Energy leaves the sun as light from region called the?
tino4ka555 [31]
Late answer:
Chromosphere.
4 0
3 years ago
One way to represent a model of an atom is in a drawing. What is another way to show an atomic model? ​
mamaluj [8]

I think by writing electronic configuration.

7 0
2 years ago
Describe the three subatomic particles (protons, neutrons, and electrons) in terms of their mass, charge, and location within th
atroni [7]
Particle      mass                          charge                     location

protons     1.673*10 ^ - 27 kg        1.6*10 ^ -19 C        in the nucleus
neutrons   1.675*10 ^ - 27 kg        0                             in the nucleus
electron     9.11 * 10 ^ - 31 kg       -1.6 * 10 ^ - 19 C    around the nucleus (orbitals)

Protons and neutrons have almost same masses. Mass of electrons is 1/1840 the mass of the protons.

Protons and electrons have the same magnitud of charge with different sign. Protons are positive and electrons are negative. Neutrons do not have charge.
3 0
2 years ago
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