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alexdok [17]
3 years ago
14

HELPPPPPP PLZZZZZ! FILE ATTACHED BELOW! ASAP PLZZZ!

Chemistry
1 answer:
baherus [9]3 years ago
4 0
90 would be my guess.

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The recommended daily allowance (RDA) of the trace metal magnesium is 410 mg/daymg/day for males. Express this quantity in μg/da
Ira Lisetskai [31]

Answer:

410mg/day *\frac{1000 ug}{1 mg}

Recommended daily Amount (RDA) of magnesium is  410,000 μg/day.

Explanation:

There are 1000μg in 1 mg and 1000 mg in 1g

1 mg=1000μg

The Recommended daily Amount (RDA) is 410 mg/day of magnesium. Converting 410 mg/day into μg/day

410mg/day *\frac{1000 ug}{1 mg}

It will become 410,000 μg/day

So Recommended daily Amount (RDA) of magnesium is  410,000 μg/day.

4 0
3 years ago
For the of freezing liquid ethanol at a given temperature and pressure,A. ΔH is positive and ΔS is positive.B. ΔH is positive an
Ksivusya [100]

Answer:

ΔH is negative and ΔS is negative.

Explanation:

Endothermic reaction -

The type of reaction in which energy is absorbed in the form of heat is known as endothermic reaction .

The reaction mixture usually get cooled after the reaction .( temperature decreases ) .

The sign of ΔH of an Endothermic  reaction is positive .

<u>For the of process of freezing the liquid ethanol  ,  energy in the form of heat is released and hence , exothermic reaction ΔH is negative  .</u>

<u>In the process of freezing , liquid is converted to solid , i.e. , the randomness reduces , and hence , entropy also decreases , hence , ΔS is negative .</u>

3 0
3 years ago
If a substance is soluble in water, it will _______in water. A. settle B. float C. dissolve D. all of these
MrRa [10]

C.Dissolve because its another word for soluble

6 0
4 years ago
Read 2 more answers
Untitled Section
ipn [44]

Answer:

B.

Explanation:

Hope this helps.

7 0
3 years ago
Please help me
Dmitriy789 [7]

Answer:

divergent

Explanation:

I believe it is divergent.

7 0
3 years ago
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