. Which of the following would occur as saturated hydrocarbons?
alkanes
alkenes
alkynes
cycloalkynes
ans: alkanes right
2. There are millions of organic compounds but only thousands of inorganic compounds because
atoms of elements other than carbon never combine with themselves This isn't QUITE true. There are a few elements, such as S8, P4, Hg2Cl2, Al2Cl6, etc.
organic compounds were formed by living things
carbon atoms can combine with up to four other atoms, including other carbon atoms
there is more carbon on the earth's surface that any other element. I'm not sure this last statement is true. There is more oxygen, as a percent, than any other element in the earths crust (49.5% by mass). In fact, carbon is 14th most abundant element in the earth's crust (0.08% by mass) so it doesn't even make the top 10. :-) The correct answer is that carbon can combine with up to four atoms including itself .......
ans: there is more carbon on the earth's surface that any other element
3. Propanol and iso-propanol have
the same physical and chemical properties
the same physical, but different chemical properties
different physcial, but the same chemical properties
different physical and chemical properties
ans: the same physical, but different chemical properties
I didn't look these up but you might. I would have picked different physical and chemical properties. Look up melting point and boiling point just for the fun of it. I'll bet they are different.
4. What is ethanol converted into when wine "goes bad?"
CH3COOH
CH3OCH3
CH3CH2OH
CH3OH
ans: CH3COOH right
5. when a solvent is cooled, it will dissolve
more solid
more gas
less gas
the same amount of solid or gas
ans: more gas right
6. what would paint thinner, a petroleum distillate, most likely contain?
C2H4
C5H12
C17H34
C40H82
ans: C40H82 My best guess, although I didn't look it up, is that C40H82 is a solid. C2H4 is a gas so your choices are between C5H12 and C17H34
1. Which of the following would occur as saturated hydrocarbons?
alkanes
alkenes
alkynes
cycloalkynes
ans: alkanes
2. There are millions of organic compounds but only thousands of inorganic compounds because
atoms of elements other than carbon never combine with themselves
organic compounds were formed by living things
carbon atoms can combine with up to four other atoms, including other carbon atoms
there is more carbon on the earth's surface that any other element.
ans: there is more carbon on the earth's surface that any other element
3. Propanol and iso-propanol have
the same physical and chemical properties
the same physical, but different chemical properties
different physcial, but the same chemical properties
different physical and chemical properties
ans: the same physical, but different chemical properties
4. What is ethanol converted into when wine "goes bad?"
CH3COOH
CH3OCH3
CH3CH2OH
CH3OH
ans: CH3COOH
5. when a solvent is cooled, it will dissolve
more solid
more gas
less gas
the same amount of solid or gas
ans: more gas
6. what would paint thinner, a petroleum distillate, most likely contain?
C2H4
C5H12
C17H34
C40H82
ans: C40H82
2 answers
Thanks!
1 answer