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mars1129 [50]
3 years ago
7

Solve the problem for the moles of oxygen. mol O2 DONE

Chemistry
1 answer:
Elza [17]3 years ago
8 0

Answer: The answer is 0.245

Explanation: That is what it said the answer was

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Iron 3 oxide and carbon react to form iron and carbon dioxide. Balance the equation.
Oksi-84 [34.3K]

Answer:

2 Fe(iii)2O3 + 3 C ==> 2 Fe  + 3 CO2

Explanation:

First of all, you have to translate the words into an equation.

Fe(iii)2O3 + C ==> Fe  + CO2

The easiest way to tackle this is to start with the Oxygens and balance them. They must balance by going to the greatest common factor which is 6. So you multiply the molecule by whatever it takes to get the Oxygens to 6

2 Fe(iii)2O3 + C   ==>     Fe  + 3 CO2

Now work on the irons. There 2 on the left and just 1 on the right. So you need to multiply the iron by 2.

2 Fe(iii)2O3 + C ==> 2 Fe  + 3 CO2

Finally it is the turn of the carbons. There are 3 on the right, so you must make the carbon on the left = 3

2 Fe(iii)2O3 + 3 C ==> 2 Fe  + 3 CO2

And you are done.

5 0
3 years ago
What volume would 0.735 moles of O2 gas occupy at STP
tatiyna

Answer:

16.5 dm³

Explanation:

Data Given:

no. moles of O₂ =  0.735 moles

volume of O₂ = ?

Solution:

Now

we have to find volume of O₂ gas

Formula used for this purpose

                   No. of moles = Volume / molar volume

where

molar volume at STP for Oxygen (O₂) = 22.4 dm³/mol

              No. of moles O₂ = Volume of O₂ / 22.4 dm³/mol . . . . . .(1)

Put values in equation 1

                0.735 = Volume of O₂ / 22.4 dm³/ mol

rearrange above equation

              Volume of O₂ = 0.735 x 22.4 dm³/ mol

              Volume of O₂ = 16.5 dm³

So,

the volume of O₂ at STP is 16.5 dm³

6 0
3 years ago
What is the name of this hydrocarbon? 2-butane 2-butene 2-butyne 4-butyne 4-propyne
monitta
2-butane is the correct answer
5 0
3 years ago
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In which state do molecules have the highest kinEric energy
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Molecules in the gaseous state have the highest kinetic energy. This is because they are free to move around in random directions.

5 0
3 years ago
What describes the proton
stellarik [79]
The proton is the positively charged sub-atomic particle in the nucleus of an atom and the electron is the negatively charged P for positive.
6 0
3 years ago
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