1) Over 95% of the mass of living things is composed of these 5 elements: a)carb
ID: 850056 • Letter: 1
Question
1) Over 95% of the mass of living things is composed of these 5 elements:
a)carbon, hydrogen,oxygen,nitrogen,phosphorous,sulfur
b)Carbon,hydrogen,oxygen,nitrogen,potassium,sulfur
c)Carbon,hydrogen, oxygen,nitrogen,potassium,sodium
d)Carbon,hydrogen,oxygen,nitrogen,phosphorous,Sodium
e)None of these is correct
2)Which of these does not accurately describe the term "chiral carbon"
a)a carbon atom with four different organic groups attached to it
b)a carbon atom that is characterized by sp^2 electron orbital hybridization
c)a carbon atom that results in the possibility of two stereoisomers for a compound
d)a carbon atom that influences the rotation polarized light by a compound
e)all of these describe the term "chiral carbon"
3)Which of the following is the best definition of "reaction order"
a)The sequence in which reactant molecules collide with each other
b)The way that elementary steps are arranged in the reaction mechanism
c)The powers to which reactant concentrations are raised in the rate laq equation
d)The ranked importance of the reactants and products for a reaction
4)Which of the following would you expect to be most soluble in water?
a)2-proponone 58.08g/mol
b)butane 58.12 g/mol
c)2-propanol 60.10 g/mol
d)ethyl methyl ether 60.10 g/mol
5)Which of the following would you expect to have the lowest boiling point?
a)2-proponone 58.08g/mol
b)butane 58.12 g/mol
c)2-propanol 60.10 g/mol
d)ethyl methyl ether 60.10 g/mol
Explanation / Answer
1) Over 95% of the mass of living things is composed of these 5 elements:
a)carbon, hydrogen,oxygen,nitrogen,phosphorous,sulfur
2)Which of these does not accurately describe the term "chiral carbon"
b)a carbon atom that is characterized by sp^2 electron orbital hybridization
3)Which of the following is the best definition of "reaction order"
c)The powers to which reactant concentrations are raised in the rate laq equation
4)Which of the following would you expect to be most soluble in water?
c)2-propanol 60.10 g/mol
5)Which of the following would you expect to have the lowest boiling point?
b)butane 58.12 g/mol
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