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HACTEHA [7]
3 years ago
10

A balloon (approximate as a sphere) is inflated such that its

Chemistry
1 answer:
Likurg_2 [28]3 years ago
8 0

Answer: 1436 mL

Explanation: 4/3 • 3.14 • 7^3 <— calculate

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A 50.5 L flask contains 3.25 mol of an unknown gas at 288.6 K, what is the pressure of<br> this gas?
Ivahew [28]

Answer:

1.52atm is the pressure of the gas

Explanation:

To solve this question we must use the general gas law:

PV = nRT

<em>Where P is pressure in atm = Our incognite</em>

<em>V is volume = 50.5L</em>

<em>n are moles of gas = 3.25moles</em>

<em>R is gas constat = 0.082atmL/molK</em>

<em>And T is absolute temperature = 288.6K</em>

To solve pressure:

P = nRT / V

P = 3.25mol*0.082atmL/molK*288.6K / 50.5L

P = 1.52atm is the pressure of the gas

3 0
3 years ago
When circumstances are right, most materials undergo a process called thermal expansion. Which statement best describes the caus
harina [27]

Answer: Matter is heated, and its particles spread out more

Explanation:

Thermal expansion occurs when there's an expansion of an object or material or when an object becomes bigger because of a rise in its temperature. This brings about the faster movement of the heated molecules and the atoms spreading out.

Therefore, the cause and effect of thermal expansion will be that when matter is heated, and its particles spread out more.

6 0
3 years ago
Could you please help
Semenov [28]
I would say D, because you need to start with nothing to measure the different sizes as they start to grow. hope this helps!
8 0
3 years ago
Use the particle theory to describe each of the three states of matter.
Anna007 [38]
Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. ... Gaseous matter is composed of particles packed so loosely that it has neither a defined shape nor a defined volume.
7 0
3 years ago
If the mass of a particular atom is exactly 5 times the mass of an atom of carbon-12, what is its mass
otez555 [7]
The mass is 60 grams.
8 0
3 years ago
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