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Korolek [52]
4 years ago
13

What mineral is used to create iron ore

Chemistry
1 answer:
Sav [38]4 years ago
8 0
It would be gold ...................
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Glass tubes of the following diameters are arranged in a water trough. Rank the following glass tubes in decreasing order of the
vesna_86 [32]

Answer:

0.25 mm> 0.50 mm > 0.75 mm> 1mm> 1.25 mm

Explanation:

Capillary movement involves the movement of liquid up through a capillary tube.

Looking at the question, we can see all the various diameters of the capillary tube are involved.

Note that, that the narrower the diameter of the capillary tube, the better the capillary action of the liquid (the liquid rises more now than then).

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3 years ago
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3 years ago
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If you have 492 moles of As you need moles of NaOH to use it all up
Gemiola [76]

According to the given reaction, 2 moles of As react with 6 moles of NaOH. Use this ratio to find how many moles of NaOH react with 492 moles of As.

492molAs\cdot\frac{6molNaOH}{2molAs}=1476molNaOH

It means that you need 1476 moles of NaOH to use 492 moles of As all up.

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1 year ago
Help me Look at the pictures!!!! Past due!
tino4ka555 [31]

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