3 years ago

What might happen if a wire in an electronic device is replaced with a thinner, longer wire?

Chemistry

1 answer:

chubhunter [2.5K]3 years ago

3 0

The device might work differently or malifunction. My opinions ..idk if right.

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When should a lab coat, safety goggles, and gloves be worn in the laboratory?

Sever21 [200]

I would say that you should wear a lab coat, safety goggles, and gloves when the teacher says so - not everything in a lab is dangerous, so there is no need to always wear these. But when the teacher says you should - then you should.

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3 years ago

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Consider all the elements in the periodic table. The stair-step line between the pink squares and the yellow squares separates t

lesantik [10]

B. Metals; nonmetals

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The symbol for the element in period 2, group 13

denis-greek [22]

Element: Boron
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2 years ago

how many molecule of carbon dioxide are needed to react with excess iron oxide to produce 11.6 g of iron

lesya692 [45]

Answer:

0.16 moles of Carbon

Explanation:

The balanced reaction equation:

$2Fe_{2}O_{3}$ + $3C$ → $4Fe$ + $3CO_{2}$ ↑

The mole ratio of Carbon to Iron is 3 : 4 (since Fe2O3 is in excess)

i.e 3 moles of C produces 4 moles of Fe.

If 1 mole of Fe - 55.8g of Fe

? moles - 11.6g of Fe

= $\frac{11.6}{55.8}$ = 0.208 moles

But 3 moles of C - 4 moles of Fe

? moles of C - 0.208 moles of Fe

= $\frac{3 *0.208}{4}$ = 0.16 moles of carbon.

I hope this explanation was clear and useful.

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Which one of the following human organ systems is mainly made up of glands and hormones

fomenos

The lymphatic system

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