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Alexus [3.1K]
2 years ago
9

One significant difference between gases and liquids is that:

Chemistry
1 answer:
erma4kov [3.2K]2 years ago
7 0

Answer:

A

Explanation:

all the other answers are wrong or not applicable. hope this helps :)

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Sodium metal is sometimes used as a cooling agent in heat exchange units because of its relatively high molar heat capacity of 2
IgorC [24]

Answer:

The specific heat of sodium is 1,23J/g°C

Explanation:

Using the atomic weight of sodium (23g/mol) and the atomic weight definition, we have that each mole of the substance has 23 grams of sodium.

starting from this, we use the atomic weight of sodium to convert the units from J / mol ° C to J / g ° C

28,2 \frac{J}{mol C} x \frac{1mol}{23g} = 1,23 J/g C

4 0
3 years ago
Using your knowledge of chemistry and the information in Reference Table H, which statement concerning propanone and water at 50
stiv31 [10]
The answer is (2) higher vapor pressure and weaker intermolecular forces. Propanone has a lower boiling point, so it is more volatile than water. Propanone's vapor pressure is, therefore, higher than that of water at 50 degrees Celsius. Propanone is more volatile due to the fact that the intermolecular forces that hold its molecuels together are not as strong as those that hold together molecules of water. Since the IMFs are weaker, it takes less thermal energy to break individual molecules free of each other.
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3 years ago
In the reaction C7H16+_______O2→ 8H2O + 7CO2, what coefficient should be placed in front og O2 to balence the reaction
Ira Lisetskai [31]
The answer is C because there are 22 oxygen atoms on the product side so to balance the equation the coefficient needed is 11
4 0
2 years ago
What is the most abundant gas in Earth's present day atmosphere?
Anna007 [38]
Nitrogen. air consists 78% of nitrogen gas
4 0
3 years ago
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The Spirit of America Goodyear blimp has a volume of 2.027×105 ft3.When the blimp is in operation, it is filled with helium gas.
Andru [333]
Answer: 1.027 x 10^6 g= 1027kg
In this question, you are given the volume of the blimp (2.027×10^5 ft^3) and the density of the gas(0.179g/L). To answer this question, you need to convert the volume unit into liter. The calculation would be: 2.027×10^5 ft^3 x 28.3168L/ft3= 57.398 x 10^5L= 5.74x10^6L

Then to find the mass, multiply the volume with the density. The calculation would be: 5.74x10^6L x 0.179g/L= 1.027 x 10^6 g= 1027kg
4 0
3 years ago
Read 2 more answers
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