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katrin [286]
3 years ago
14

If you have 66 pencils, how many dozen do you have

Chemistry
1 answer:
Marta_Voda [28]3 years ago
3 0

Answer:

5.5

Explanation:

You have to do 66 divided by 12 and you get that and if you want the proof then here it is...

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How many amps are required to produce 75. 8 g of iron metal from a solution of aqueous iron(iii)chloride in 6. 75 hours?
Shalnov [3]

The amount of current required to produce 75. 8 g of iron metal from a solution of aqueous iron (iii)chloride in 6. 75 hours is 168.4A.

The amount of Current required to deposit a metal can be find out by using The Law of Equivalence. It states that the number of gram equivalents of each reactant and product is equal in a given reaction.

It can be found using the formula,

m = Z I t

where, m = mass of metal deposited = 75.8g

            Z = Equivalent mass / 96500 = 18.6 / 96500 = 0.0001

             I is the current passed

              t is the time taken = 75hour = 75 × 60 = 4500s

On subsituting in above formula,

75.8 = E I t / F

⇒ 75.8 = 0.0001 × I × 4500

⇒ I = 168.4 Ampere (A)

Hence, amount of current required to deposit a metal is 168.4A.

Learn more about Law of Equivalence here, brainly.com/question/13104984

#SPJ4

7 0
2 years ago
An aqueous solution of sodium thiosulfate releases heat when it crystallizes. What would happen when sodium thiosulfate crystals
rusak2 [61]

Answer:

An excellent experiment is to heat sodium thiosulfate in a water bath. The solid crystals will dissolve into the water in the hydrated crystals forming a supersaturated solution. ... Placing a small crystal in the supersaturated solution will cause the liquid to turn solid.

7 0
3 years ago
A stream leaving a mountain range deposits a large part of its load in a(n): alluvial fan sandbar meander sand dune
pshichka [43]

the answer to you question is alluvial fan

3 0
3 years ago
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What are three ways we can measure sustainability while evaluating whether to buy a product?
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Environmental, Economic, and Societal Impacts

Explanation:

If the product is popular it'll be on social media...

If it helps you in some way it is useful, and probably needed

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3 years ago
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. Who was the scientist responsible for the laws of motion?
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Newton was the scientist

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2 years ago
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