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LenaWriter [7]
3 years ago
5

Clouds most likely form as a result of

Chemistry
2 answers:
notka56 [123]3 years ago
5 0
The cooling that occurs due to expansion of air rising
soldier1979 [14.2K]3 years ago
4 0

Answer:

Some clouds form as air warms up near the Earth's surface and Rises heated by Sunshine the ground heats the air just above it that warm air starts to rise because when warm it is lighter and less dense than the air around it as it rises its pressure and temperature drop causing water vapor to condense.

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Explain how our body systems work together to get oxygen into and around our body.
aleksandrvk [35]

Answer:  (1) Inhales (breathes in) Oxygen - good for the body - gives it to the Circulatory System to be transported throughout the body through the blood. (1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go.

7 0
2 years ago
A sample of metal has a mass of 18.20g, and a volume of 7.38mL. What is the density in g/cm^3?
AlexFokin [52]
Density = Mass ÷ Volume. You get 2.466
8 0
3 years ago
Help please if its right i'll give brainiest
Mkey [24]
I believe it is spontaneous generation
5 0
2 years ago
Could volume by displacement be used to determine the volume of a lump of rock salt? Explain would be nice
Readme [11.4K]

Yes it could, but you'd have to set up the process very carefully.
I see two major challenges right away:

1).  Displacement of water would not be a wise method, since rock salt
is soluble (dissolves) in water.  So as soon as you start lowering it into
your graduated cylinder full of water, its volume would immediately start
to decrease.  If you lowered it slowly enough, you might even measure
a volume close to zero, and when you pulled the string back out of the
water, there might be nothing left on the end of it.

So you would have to choose some other fluid besides water ... one in
which rock salt doesn't dissolve.  I don't know right now what that could
be.  You'd have to shop around and find one.

2).  Whatever fluid you did choose, it would also have to be less dense
than rock salt.  If it's more dense, then the rock salt just floats in it, and
never goes all the way under.  If that happens, then you have a tough
time measuring the total volume of the lump.

So the displacement method could perhaps be used, in principle, but
it would not be easy.


5 0
3 years ago
If 0.0714 moles of N2 gas occupies 1.25 L space, how many moles of N2 have a volume of 25.0 L? Assume temperature and pressure s
vfiekz [6]

Answer:

1.428 moles

Explanation:

If 0.0714 moles of N2 gas occupies 1.25 L space,

how many moles of N2 have a volume of 25.0 L?

Assume temperature and pressure stayed constant.

we experience it 0.0714 moles: 1.25L space

x moles : 25L of space

to get the x moles, cross multiply

(0.0714 x 25)/1.25

1.785/1.25 = 1.428 moles

8 0
3 years ago
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