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allochka39001 [22]
3 years ago
6

it is method used to separate particulates from a liquid by allowing in the solids to settle at the bottom of the mixture​

Chemistry
1 answer:
wariber [46]3 years ago
5 0

Answer:

Decantation

Explanation:

Decantation is one of the process of separating mixture containing solid and liquid. In this process, gravity plays a very important role. The solid part of the mixture is allowed to settle down. The liquid is removed and separated in another container. It is a process that helps in the purification of the liquid. The particles that are insoluble settles down and is further subject to be separated from the mixture.

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hram777 [196]
It becomes:
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3 years ago
Convert 7.89 x 10^8 molecules of water to liters.
NNADVOKAT [17]

Answer:

2.94 x 10⁻¹⁴L

Explanation:

To solve this problem, we have to assume that the condition of this water is at standard temperature and pressure, STP.

At STP;

       1 mole of gas have a volume of 22.4L

So, let us find the number of moles of this water first;

         6.02 x 10²³ molecules can be found in 1 mole of a substance

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So;

        Volume of water  = 22.4 x 1.31 x 10⁻¹⁵  = 2.94 x 10⁻¹⁴L

5 0
3 years ago
Why is large-scale nuclear fission a rare phenomenon on Earth? A. There isn't enough energy to start a chain reaction in nature.
siniylev [52]

The answer is; C

The radioisotopes in the interior of the earth are not in pure form and have many embedded impurities and are interspersed. Therefore when a neutron is released by a decaying atom, its chances of hitting another radioisotope atom (to continue the chain reaction) are lower than in a manmade nuclear reactor. This way, the radioactive chain reaction in the earth’s interior is not well sustained.


6 0
3 years ago
Read 2 more answers
Chemical reactionthe formation of a the formation of a helium and water ​
Svetlanka [38]

Answer:

Hydrogen and oxygen combine to form water by the formula:

2 H2 + O2 → 2 H2O

The formation reaction of this process is:

H2 + ½ O2 → H2O

Explanation:

hope it helps brainly me also if you can ;3

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Write 750,000 in scientific notation
PIT_PIT [208]

Answer:

Explanation:

scientific notation of 750000 is

7.5*10^5

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