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lora16 [44]
3 years ago
10

An atom has no overall charg if it contains equal number of

Chemistry
2 answers:
Kisachek [45]3 years ago
5 0
Protons and electrons.

Colt1911 [192]3 years ago
4 0
Protons (positively charged) and electrons (negatively charged). They would cancel each others charges out thus causing the atom to have a neutral or no charge. 
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Can colloidal suspensions be separated out by filtration
balu736 [363]

Answer:

Colloidal can not be separated through filtration.

Suspension can be separated through filtration.

Explanation:

Colloidal:

Colloidal consist of the particles having size between 1 - 1000 nm i.e, 0.001- 1μm. While the pore size of filter paper is 2μm. That's why we can not separate the colloidal through the filtration. However it can be separated through the ultra filtration. In ultra filtration the pore size is reduced by soaking the filter paper in gelatin and then in formaldehyde. This is only in case of when solid colloidal is present, if colloid is liquid , there is no solid particles present and ultra filtration can not be used in this case.

Suspension:

The particle size in suspension is greater than 1000 nm. The particles in suspension can be separated through the filtration. These particles are large enough and can be seen through naked eye.

5 0
3 years ago
Read 2 more answers
Half-life is always given in units of time
ad-work [718]
Yes, half life is always given in units of time, hope this helps
5 0
3 years ago
What is an emission spectrum?
SashulF [63]

Answer:

D

Explanation:

The electromagnetic radiation is emitted due to a particle moves from a higher to a lower energy state

8 0
2 years ago
Now consider the reaction a+2b⇌c for which in the initial mixture qc=[c][a][b]2=387 is the reaction at equilibrium? if not, in w
Paul [167]
Solving this chemistry is a little bit hard because the question didn't give some important detailed. 
So first, there are a couple problems with your question. 
We will just need to know which direction will it proceed to reach equilibrium.
Your expression for Kc (and Qc ) for the reaction should be: 
Kc = [C] / [A] [B]^2 
You have not provided a value for Kc, so a value of Qc tells you absolutely nothing. Qc is only valuable in relation to a numerical value for Kc. If Qc = Kc, then the reaction is at equilibrium. If Q < K, the reaction will form more products to reach equilibrium, and if Q > Kc, the reaction will form more reactants.
5 0
3 years ago
Please answer fast please ​
slega [8]

I don't know which one I should answer

4 0
2 years ago
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