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3 years ago

Need a bit of help with this. Fill in the coefficients, explain your answer.

Chemistry

1 answer:

sp2606 [1]3 years ago

4 0

Answer:

4Fe + 3O₂ → 2Fe₂O₃

General Formulas and Concepts:

Chemistry - Reactions

Balancing Reactions

Explanation:

Step 1: Define

RxN: Fe + O₂ → Fe₂O₃

Step 2: Balance

We need to balance both Fe and O.

LCM of 2 and 3 is 6:

Fe + 3O₂ → 2Fe₂O₃

We now need the same amount of Fe on both sides:

4Fe + 3O₂ → 2Fe₂O₃

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An airplane travels 2100 km at 1000km/hE. It encounters a wind and slows to 800 km/h E for the next 1300 km. What is the average

Deffense [45]

Answer:

The average velocity of the airplane for this trip is 1684.21 km/h

Explanation:

Average velocity is the rate of change of displacement with time. That is,

Average velocity = $\frac{Displacement }{Change in time}$ = Δx / Δt = $\frac{x2 - x1}{t2 - t1}$

Now we will calculate the time taken by the airplane for the first motion before it encounters a wind.

From,

Velocity = $\frac{Distance traveled}{Time taken}$

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Hence, t1 = 2.1h

Now, For the time taken by the airplane when it encounters a wind

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Time = 1.625h

Hence, t2 = 1.625h

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Average velocity = $\frac{x2 - x1}{t2 - t1}$

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3 years ago

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Answer:

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Explanation:

I think it's right. :)

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2 years ago

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AURORKA [14]

Answer:

Explanation:

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plz mark me as a BRAINLIST

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3 years ago

How can you drop two eggs the fewest amount of times, without them breaking? Whoever gets this right I will mark them brainlyest

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Answer:

Okay well simply drop it from one inch on to the ground and it won't break and you could put it into a basket with bubble wrap.

Explanation:

Well if you wrap the egg into bubble wrap a few times them put it into a basket (its your choice) then it won't break because the bubble wrap will just pop a few times but sometimes it depends on where you are dropping it from.

Have a blessed day bye! ;)

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