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TiliK225 [7]
2 years ago
8

- a) write the formula unit of calcium fluoride.

Chemistry
1 answer:
8090 [49]2 years ago
5 0

Answer:

hope this image is helpful for you

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A 50.0 mL sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. What is the new v
Slav-nsk [51]

Answer:

20(50) = 40(V₂)

⇒1000 = 40V₂

⇒V₂ = 1000/40

⇒ V₂ = 25 mL

Explanation:

6 0
2 years ago
The half of the moon facing the sun is always lit, but the different phases happen because:
zvonat [6]

Answer:

we only see parts of the lit side as the moon goes around the earth

Explanation:

Unlike the sun, the moon orbits the Earth. This is the reason why we see the <em>different phases of the moon.</em> The reflection of the moon is being illuminated back to us with the help of the sun. So, as the moon circles the Earth, we only see parts of the lit side. Such changes helps us see the moon in different phases such as<em> </em>the <em>Third Quarter, Crescent, New Moon, Full Moon, etc.</em>

For example, during "Full Moon," <em>the moon's entire face is lit up by the sun</em>. Thus, we see the entire moon's lit portion.

Thus, this explains the answer.

7 0
3 years ago
Which corresponds to a pressure of 1.23 atm??
Vadim26 [7]

Atmospheric pressure<span>, sometimes also called barometric pressure, is the pressure exerted by the weight of air in the </span>atmosphere of Earth<span> (or that of another planet)</span>

1 atm is equivalent to = 101325 Pa

= 760 mmHg

= 760 torr

= 1.01325 bar

So 1.23 atm is equal to

= 124629.8 Pa

= 934.8 mmHg

= 934.8 torr

<span>= 1.2462 bar</span>

6 0
3 years ago
What is Loschmidt’s number? How is it related to Avogadro’s number?
xxMikexx [17]
Loschmidt's constant is referred to as Avogadro's number (they are the same). Their values are 6.02 times 10 to the -34 power.
4 0
3 years ago
Each element can be indentified by the number of _______ found in its nucleus, which also equals the elements _______ _______.
Monica [59]
Defination or recotubation
3 0
3 years ago
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