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

. 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

Thanks!

To answer these questions, here's how you can get the answers:

1. To determine which of the following compounds are saturated hydrocarbons, you need to understand the definition of saturated hydrocarbons. Saturated hydrocarbons are compounds that only contain single bonds between carbon atoms. Alkanes are saturated hydrocarbons, while alkenes and alkynes contain double and triple bonds, respectively. Cycloalkynes are cyclic hydrocarbons with triple bonds. Therefore, the answer is alkanes.

2. To understand why there are more organic compounds than inorganic compounds, you need to consider the nature of organic and inorganic chemistry. Organic compounds primarily consist of carbon atoms, which have unique bonding properties that allow them to form a wide variety of compounds. Inorganic compounds, on the other hand, are formed by elements other than carbon. Carbon is abundant on Earth's surface compared to other elements, thus providing more opportunities for the formation of organic compounds. Therefore, the answer is that there is more carbon on the Earth's surface than any other element.

3. To determine the physical and chemical properties of propanol and iso-propanol, you can compare their structures and characteristics. Propanol and iso-propanol have the same physical properties, such as boiling points and density. However, they have different chemical properties, mainly due to the different arrangement of atoms in their structures. Therefore, the answer is the same physical, but different chemical properties.

4. To understand what ethanol is converted into when wine "goes bad," you need to consider the process of fermentation. Ethanol is the main alcohol in wine and is produced by the fermentation of sugars by yeast. When wine goes bad, the ethanol can be further oxidized into acetic acid (CH3COOH). Therefore, the answer is CH3COOH.

5. To understand the effect of cooling a solvent on its ability to dissolve substances, you need to consider the solubility of gases and solids. Cooling a solvent usually decreases the solubility of gases because colder temperatures reduce the kinetic energy of gas molecules, making it harder for them to dissolve. The solubility of solids, on the other hand, generally increases with cooling because colder temperatures decrease the kinetic energy of solid particles, allowing them to dissolve more readily. Therefore, the answer is less gas.

6. To determine the likely contents of paint thinner, a petroleum distillate, you need to understand the composition of petroleum. Petroleum is a complex mixture of hydrocarbons, composed mainly of molecules with various numbers of carbon atoms. Paint thinner, being a petroleum distillate, would most likely contain a mixture of hydrocarbons. The specific hydrocarbon composition may vary, but it would likely include larger hydrocarbon molecules with higher carbon numbers. Therefore, the answer is C40H82.