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Gre4nikov [31]
3 years ago
7

1. Describe a procedure to separate a mixture of salt, sand, and water.

Chemistry
1 answer:
Brilliant_brown [7]3 years ago
4 0
1.  A filter was used to separate the sand from the salt water solution (The process of decanting was used if a filer was not available).
2.  A Bunsen burner was used to boil away the water from the salt water solution leaving only salt.

I hope this helps.  Let me know if anything is unclear.
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Is the specimen classified as living or non-living? Use three pieces of evidence and reasoning to justify your answer. Provide 3
Anestetic [448]

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Explanation: I hope that helped yall!

4 0
3 years ago
Which evidence is an indication that a chemical reaction has occurred?
Luden [163]

Answer:

  • Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.

8 0
2 years ago
HELP ME, MARKED AS BRAINEST
ELEN [110]

Answer:

The answer is B

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5 0
2 years ago
What is the final concentration when 5 ml of a 2.5M copper sulphate solution is diluted to 750 ml?
Firdavs [7]

Answer: The final concentration when 5 ml of a 2.5M copper sulphate solution is diluted to 750 ml is 0.017 M

Explanation:

According to the dilution law,

M_1V_1=M_2V_2

where,  

M_1 = molarity of stock CuSO_4 solution = 2.5 M

V_1 = volume of stock CuSO_4solution = 5 ml  

M_1 = molarity of diluted CuSO_4 solution = ?

V_1 = volume of diluted CuSO_4 solution = 750 ml

Putting in the values we get:

2.5\times 5=M_2\times 750

M_2=0.017

Therefore the final concentration when 5 ml of a 2.5M copper sulphate solution is diluted to 750 ml is 0.017 M

6 0
3 years ago
Which one is the answer... a, b, or c?
jenyasd209 [6]
The answer for this one is a
8 0
3 years ago
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