Answer: The sign of ΔH° for the reaction is positive.
Explanation:
Given: = 155 kJ/mol (1 kJ = 1000 J) = 155000 J/mol
The relation between and is as follows.
As the given value of is positive. This means that on further calculation the value of will come out to be positive.
Thus, we can conclude that the sign of ΔH° for the reaction is positive.
Simple 6L of air times the .21L of O2 = 1.26
Answer:
2,3-dimethylheptane.
CH₃ - CH - CH-CH₂-CH₂-CH₂-CH₂
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CH₃ CH₃
Explanation:
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In this case, according to the given instructions, it is possible to draw the organic chemical structure by connecting seven carbon atoms along the parent chain with two methyl substituents at the second and third carbon atoms; thus, the resulting structure is:
CH₃ - CH - CH-CH₂-CH₂-CH₂-CH₂
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CH₃ CH₃
Furthermore, the name would be 2,3-dimethylheptane according to the IUPAC rules for nomenclature.
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Answer: 1) 1.6 moles of HCl
2) 7.0 moles of HCl
3) 2.4 moles of hydrogen
4) 0.96 moles of HCl
Explanation:
The balanced chemical equation is:
According to stoichiometry :
1 mole of require = 2 moles of
0.8 moles of will require= of
3.5 moles of will require= of
According to stoichiometry :
2 moles of produce = 1 mole of
4.8 moles of will require= of
According to stoichiometry :
1 mole of are produced by = 2 moles of
0.48 moles of are produced by = of
Hydrocarbons are derived from the elements, Hydrogen and Carbon. Therefore hydrocarbons contain both carbon and hydrogen.