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Ronch [10]
2 years ago
14

An object has a mass of 40 grams and a volume of 20 ml. What is the object's density?

Chemistry
1 answer:
givi [52]2 years ago
6 0

Answer:

the density of a 40 gram object whose volume is 20 mL? Density = mass /volume = 40/20 = 2g/mL.

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A gas under constant pressure has a volume of 30.57 m and a
gregori [183]

Considering the relationship between volume and temperature, a gas under constant pressure can only have its volume reduced as a result of a decrease in its temperature.

According to Charles law, at constant pressure, the volume of a gas is directly proportional to its absolute temperature. Thus:

V1/T1 = V2/T2 where V1 = intial volume, V2 = final volume, T1 = initial temperature, and T2 = final temperature.

In this case, T1 = 59.0, V1 = 30.57, and V2 = 21.14

T2 = 21.14 x 59/30.57

                 = 20.05 K

It can be seen that the temperature of the gas has reduced from 59.0 K to 20.05K.

More on gas laws can be found here: brainly.com/question/1190311

6 0
2 years ago
A gas effuses 4.0 times faster than oxygen (O2). What is the molecular mass of the gas?
Dovator [93]
Hope this helps you!

8 0
3 years ago
Which of these items best describes the arrangement of electrons in an atom of sulfur? A. Two electrons in its first energy leve
Vesnalui [34]
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8 0
3 years ago
Explain, in terms of intermolecular forces, why ammonia has a higher boiling point than the other compounds in the ta
Kobotan [32]
Answer is: ammonia has a higher boiling point because it has stronger intermolecular forces.

Intermolecular forces<span> are the forces between </span><span>molecules. The stronger are intermolecular forces, the higher is boiling point of compound, because more energy is needed to break interaction between molecules.
</span>There are several types of intermolecular forces: hydrogen bonding, i<span>on-induced dipole forces, ion-dipole forces andvan der Waals forces.</span>
7 0
3 years ago
Shown below is a table with plants and animals with their adaptations.
zhenek [66]

Answer:

Desert

Explanation:

The adaptation shown by the given plants and animals shows that they will adapted to the desert biome.

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Hence, the correct answer is "Desert".

8 0
3 years ago
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