1. The following are isomers of each other I. pentane II. 2,2,-dimethylpropane III. 2-methylbutane IV. 2,3-dimethylhexane A. Alkanes are nonpolar. B. Alkanes are non-flammable. C. Every carbon in an alkane has four bonds. D. Alkanes contain only C and H atoms. E. Alkanes do not contain carbon-carbon double or triple bonds. 1b. Which of these is a weak base? A. NaOH B. H3PO4 C. CH3COOH D. NaHCO3 E. NH4NO3 1c. Which of these pairs are formed when NaHCO3 (baking soda) is dissolved in water? NaHCO3 → ______ + ______. A. NaOH + CO2 B. Na+ +HCO3- C. NaH+ +CO3- D. Na + HCO3 E. NaH- + CO3+ 1D. Which of these statements about water is(are) incorrect? A. It has a pH of 7.0 at ambient temperatures. B. It contains no ions. C. It is neutral. D. It can act as a proton donor. E. It can act as a proton acceptor.
1.
The following are isomers of each other
I. pentane
II. 2,2,-dimethylpropane
III. 2-methylbutane
IV. 2,3-dimethylhexane
A.
B. Alkanes are non-flammable.
C. Every carbon in an alkane has four bonds.
D. Alkanes contain only C and H atoms.
E. Alkanes do not contain carbon-carbon double or triple bonds.
1b. Which of these is a weak base?
A. NaOH
B. H3PO4
C. CH3COOH
D. NaHCO3
E. NH4NO3
1c.
Which of these pairs are formed when NaHCO3 (baking soda) is dissolved in water? NaHCO3 → ______ + ______.
A. NaOH + CO2
B. Na+ +HCO3-
C. NaH+ +CO3-
D. Na + HCO3
E. NaH- + CO3+
1D.
Which of these statements about water is(are) incorrect?
A. It has a pH of 7.0 at ambient temperatures.
B. It contains no ions.
C. It is neutral.
D. It can act as a proton donor.
E. It can act as a proton acceptor.
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