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SashulF [63]
3 years ago
10

The transfer of energy changes the what of water

Chemistry
1 answer:
pentagon [3]3 years ago
7 0
The water cycle ...........
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Complete combustion of 3.20g of a hydrocarbon produced 9.69g of CO2 and 4.96g of H2O. What is the empirical formula for the hydr
vlabodo [156]

Let empirical formula for hydrocarbon is CxHy

it will undergo combustion as

CxHy + (x + y/4) O2  ---> xCO2 + (y/2 )H2O

Given that mass of CO2 produced = 9.69 g

So moles of CO2 produced = 9.69 / 44 = 0.22 moles

So moles of carbon present = 0.22 moles

mass of H2O produced = 4.96 g

Moles of H2O produced = mass / molar mass = 4.96 / 18 = 0.28 moles

So moles of H present = 2 X 0.28 = 0.56 moles

Let us divided the moles of each with lowest value of moles

Moles of Carbon = 0.22 / 0.22 = 1 moles

moles of H = 0.56 / 0.22 = 2.55

Multiplying with two to get whole number

the ratio of carbon and hydrogen will be : C:H = 2:5

empirical formula : C2H5


4 0
3 years ago
Read 2 more answers
What is the process that changes the composition of rocks by dissolving them called?
Thepotemich [5.8K]

Answer:

Chemical weathering

Explanation:

This is a chemical weathering since chemical change is involved. water flows through the rock, it dissolve the rock particles, reacting with the minerals salts in the rock there by producing new substances, ultimately leading to wearing off of the rock particles

5 0
3 years ago
The rate law for a hypothetical reaction is rate = k [A][B]. If the concentrations of A and B are both 0.020 moles per liter and
andreev551 [17]
v = 0.13\frac{L}{smol}}*0.02\frac{mol}{L}*0.02\frac{mol}{L}=5.2*10^{-5}\frac{mol}{sL}
3 0
3 years ago
what is the work done by a bird pulling a worm from the dirt with a force of .05 N and a distance of .07 m
masya89 [10]
Hello!

Work=Force*Displacment

Work=.05N * .07m = .0035J

Any questions please feel free to ask. Thank you.
5 0
3 years ago
Identify the housing option that has the lowest maintenance cost a single-family home b condominium c mobile home or d apartment
natulia [17]
I think that the mobile home would have the lowest maintenance cost. But it all depends. You didn't give the information on where do the housing options take place so the cost may vary.
6 0
3 years ago
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