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garik1379 [7]
3 years ago
7

Why would it be difficult to sift the iron fillings from the sand

Chemistry
1 answer:
slamgirl [31]3 years ago
5 0

Explanation:

Sand and iron fillings have the same size of particles.

It would be difficult to use a mesh to separate them. Also, sometimes , the iron filing clings well to the surface of the sand particles.

The best way to separate them is to use a bar magnet. The magnetic properties of the iron fillings will get it attracted to the bar magnet leaving the sand particles behind.

learn more:

Extraction brainly.com/question/5881840

#learnwithBrainly

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I think its D

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What is the equation for SHC? Give all<br> units
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Q=mcΔT

Explanation:

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2 years ago
200.0 mL of 3.85 M HCl is added to 100.0 mL of 4.6 M barium hydroxide. The reaction goes to completion. What is the concentratio
Ede4ka [16]

Answer:

2.387 mol/L

Explanation:

The reaction that takes place is:

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460 mmol of Ba(OH)₂ would react completely with (2*460) 920 mmol of HCl. There are not as many mmoles of HCl so Ba(OH)₂ will remain in excess.

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There are two OH⁻ moles per Ba(OH)₂ mol:

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Steps:

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