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agasfer [191]
2 years ago
10

1. Intermolecular forces do not have any effect on determining the physical properties of substances such as surface tension and

melting point.
a. TRUE
b. FALSE

2. The solids and liquids with the strongest intermolecular forces of attraction will have the lowest melting and boiling points.
a. TRUE
b. FALSE

3. In carbon dioxide, London dispersion forces are the only intermolecular forces of attraction.
a. TRUE
b. FALSE

4. Intermolecular hydrogen bonding plays an important role in the structure of polymers.
a. TRUE
b. FALSE

5. The intermolecular forces of attraction in hydrogen gas are stronger than those of helium gas.
a. TRUE
b. FALSE

6. At room temperature and 1 atm, covalent crystals are solid.
a. True
b. False

7. Intermolecular forces hold the oxygen and hydrogen atoms together in a water molecule.
a. TRUE
b. FALSE

8. In a diamond, each carbon atom is covalently bonded to four other carbons in a _____.
a. Polyhedron
b. Hexagon
c. Pentagon
d. Tetrahedron

9. As the temperature increases, the molecular motion of the molecules decreases and it becomes difficult to overcome the polar attractions.
a. TRUE
b. FALSE

10. Intermolecular forces can exist between:
a. Atoms
b. Molecules
c. Ions
d. All of the above
Chemistry
1 answer:
Scilla [17]2 years ago
5 0

Answer:

1)false

2) false

3)True

4)True

5) false

6)false

7) true

8) d

9)false

10) b

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Answer:

Explanation:

An atom is the smallest unit of an element that can take part in a chemical reaction. Atoms (and there corresponding symbols) mentioned in the question are

Lithium ⇒ Li

Carbon ⇒ C

Nitrogen ⇒ N

Potassium ⇒ K

Oxygen ⇒ O

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Chlorine ⇒ Cl

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Water ⇒ H₂O

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Chalk (calcium carbonate) ⇒ CaCO₃

Lime (calcium oxide) ⇒ CaO

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8 0
2 years ago
According to the ph scale, what is the approximate ph of ammonia solution?
UNO [17]
I believe that the answer is 11.5
5 0
3 years ago
Perform the following conversions:<br> (a) 68°F (a pleasant spring day) to °C and K.
IgorC [24]

Converting  temperature of 68°F to °C gives 20 °C.

Converting  temperature of 68°F to K gives 293 K.

<h3>What is temperature conversion?</h3>

Temperature conversion is the process of converting  the measurement units of the temperature recorded in a particular unit to another unit.

The various units of Temperature include;

  • degree Celsius
  • degree Fahrenheit
  • degree Kelvin

Temperature is measured with thermometer and it records the hotness or coldness of a body.

<h3>Converting  68°F to °C</h3>

F = 1.8C + 32

(F - 32/1.8) = C

(68 - 32) / 1.8 = C

20 ⁰C = 68 ⁰F

<h3>Converting  20°C to K</h3>

0 °C  = 273 K

20 °C  = 273 + 20 = 293 K

Learn more about temperature conversion here: brainly.com/question/23419049

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3 0
1 year ago
A sample of gas at 47C and 1.5 pressure occupies a volume of 2.20L. What volume would this gas occupy at 107C and 2.5 pressure?
Brums [2.3K]

Answer:

Explanation:

21

8 0
3 years ago
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