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3 years ago

What causes the formation of mountain ranges along the ocean floor?

2 answers:

4 0

I think it is plate tectonics pulls the ocean floor apart and magma pushes up forming mountains, please tell me if i’m wrong but i hope this helps

Rainbow [258]3 years ago

3 0

It’s the second answer

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Which of the following bonds is the most reactive? A. C—C B. N—H C. O—O D. C—H

USPshnik [31]

I think the answer is b

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3 years ago

What mass of CO is needed to react completely with55.0 g of Fe2O3(s)+CO(g) yield Fe(s)+CO2(g)?

Katarina [22]

Answer:

28.9 g

Explanation:

We know that we will need a balanced equation with masses, moles, and molar masses of the compounds involved.

<em>Gather all the information in one place</em> with molar masses above the formulas and masses below them.

$M_{r}$ : 159.69 28.01

Fe₂O₃ + 3CO ⟶ 2Fe + 3CO₂

Mass/g: 55.0

1. Use the molar mass of Fe₂O₃ to calculate the moles of Fe₂O₃.

$\text{Moles of Fe$_{2}$O$_{3}$} =\text{55.0 g Fe$_{2}$O$_{3}$} \times \frac{\text{1 mol Fe$_{2}$O$_{3}$}}{\text{159.69 g Fe$_{2}$O$_{3}$}}= \text{0.3444 mol Fe$_{2}$O$_{3}$}$

2. Use the molar ratio of CO:Fe₂O₃ to calculate the moles of CO.

$\text{Moles of CO} = \text{0.3444 mol Fe$_{2}$O$_{3}$} \times \frac{\text{3 mol CO}}{\text{1 mol Fe$_{2}$O$_{3}$}}= \text{1.033 mol CO}$

3.Use the molar mass of CO to calculate the mass of CO.

$\text{Mass of CO} = \text{1.033 mol CO} \times \frac{\text{28.01 g CO} }{\text{1 mol CO}}= \textbf{28.9 g CO}$

3 0

3 years ago

Read 2 more answers

What are some catchy volcano titles?<br> I need it asap I'm making a 4th grade book

stich3 [128]

Volcano experiment
Volcano lavatory
Volcano extravaganza
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3 years ago

Which sample of ethanol has particles with the highest average kinetic energy?

ale4655 [162]

The second one.
Remember, temperature is the AVERAGE kinetic energy. So, looking for highest average kinetic energy means looking for highest temperature, which is 55.
Note: the amount of the substance does not determine the average kinetic energy.

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3 years ago

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Which pair of elements would most likely bond to form a covalently bonded compound?

anastassius [24]

Answer:

two nonmetal elements join together to form covalent compounds

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3 years ago