It might be B and D? So sorry if i’m wrong. Please tell me if i’m right or wrong!
Answer:
C₅H₁₂.
Explanation:
- The hydrocarbon is burned in excess of oxygen to give CO₂ and H₂O.
- <em>The no. of moles of CO₂ produced = mass/molar mass </em>= 1.53 g/44.0 g/mol = <em>0.03477 mol.</em>
<em>Which is corresponding to 0.03477 mol of C.</em>
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- <em>The no. of moles of H₂O produced = mass/molar mass</em> = 0.756 g/18.0 g/mol = <em>0.042 mol.</em>
<em>which corresponds to (0.042 x 2) = 0.084 moles of hydrogen.</em>
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- The ratio of the number of moles of hydrogen to carbon in the composition of the compound will be 0.084 / 0.03477 = 2.4 = 12/5.
- <em>Therefore, the empirical formula of the compound under consideration is C₅H₁₂.</em>
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Answer:
I don't know the word bank, but I'll try to answer as best I can
Explanation:
1. The scientific method
2. Variables
3. Procedure
4. Replication
5. Investigation
6. Observation?
7. Hypothesis
8. I don't know, I need the word bank
9. Data
10. Conclusion
Once again, I don't have the word bank, so I don't know for sure.
Have a good day! :)
Answer:
See explanation
Explanation:
The oxides or hydrides are formed by exchange of valency between the two atoms involved. The group of the atom bonded to oxygen or hydrogen in the binary compound can be deduced by considering the subscript attached to the oxygen or hydrogen atom.
Now let us take the journey;
R2O3- refers to an oxide of a group 13 element, eg Al2O3
R2O - refers to an oxide of group a group 1 element e.gNa2O
RO2 - refers to an oxide of a group 14, 15 or 16 element such as CO2, NO2 or SO2
RH2 - refers to the hydride of a group 12 element Eg CaH2
R2O7 - refers to an oxide of a group 17 element E.g Cl2O7
RH3- refers to a hydride of a group 13 element E.g AlH3