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8_murik_8 [283]
3 years ago
14

Which statement accurately describes the movement of Earth’s plates due to convection currents?

Chemistry
1 answer:
choli [55]3 years ago
6 0

Answer:

Volcanic eruptions.

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How many grams of solid iron will be produced from 32.1 grams of iron (III) oxide? Hint: Balance the equation first
Taya2010 [7]

Answer:

22.45g of Fe will be produced

Explanation:

The balanced reaction is:

Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g)

<em>Where 1 mole of Iron (III) oxide reacts with 2 moles of Iron</em>

<em />

To solve this question we have to find the moles of iron (III) oxide. With these moles and the balanced reaction we can find the moles of iron produced and its mass:

<em>Moles iron (III) oxide -Molar mass: 159.69g/mol-</em>

32.1g Fe₂O₃ * (1mol / 159.69g) = 0.201 moles Fe₂O₃

<em>Moles Iron:</em>

0.201 moles Fe₂O₃ * (2mol Fe / 1mol Fe₂O₃) = 0.402 moles of Fe

<em>Mass Fe -Molar mass: 55.845g/mol-</em>

0.402 moles of Fe * (55.845g/mol) =

<h3>22.45g of Fe will be produced</h3>
3 0
2 years ago
Solving for TIME: You need to get to class, 200 meters away, and you can only
poizon [28]

Answer:

1.66 mins

Explanation:

Distance = 200 m

Speed = 2 m/s

Time taken = \frac{Distance}{Speed} = \frac{200}{2} = 100 secs = 1.66 mins

8 0
3 years ago
Why do mentos fizz up and pop right out of a coke bottle
muminat
What's happening is the Mento is causing the carbonation in the bottle to release nearly all at once, causing the pressure in the bottle to increase drastically. This pressure causes the Coke to shoot out of the top, or if there's no hole the pressure makes the top shoot off or something to that effect.

Personally I like to drill holes in the top and use a little bit of wire to drop the Mento in. Then it looks really spectacular :D
8 0
3 years ago
Read 2 more answers
What gas is formed when zinc reacts with dilute hydrochloric acid
mote1985 [20]

Answer:

Hope it helps.

Explanation:

When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.

6 0
3 years ago
I am a metal with electrons in 5 energy levels that can form ions with a +2 charge
igomit [66]
Sr - Strongium. i believe lol
3 0
3 years ago
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