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3 years ago

Everything that can be measured is made up of _ and that is made up of small units called _?

Chemistry

1 answer:

postnew [5]3 years ago

3 0

Everything that can be measured is made up of matter and that is made up of small units called atoms.

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What In the formula Na3PO4 how many moles of sodium? How many moles of phosphorus? How many moles of oxygen?

yulyashka [42]

Sodium is Na, so there's 3 moles of that. Phosphorus is P, there's 1 mole of that. Oxygen is O, there's 4 moles of that.

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2 years ago

A sample of neon gas occupies 105 L at 27°C under a pressure of

Viefleur [7K]

Answer: Volume occupied by given neon sample at standard condition is 123.84 L.

Explanation:

Given: $V_{1}$ = 105 L, $T_{1} = 27^{o}C = (27 + 273) K = 300 K$ , $P_{1}$ = 985 torr

At standard conditions,

$T_{2}$ = 273 K, $P_{2}$ = 760 K, $V_{2}$ = ?

Formula used to calculate the volume is as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}$

Substitute the values into above formula as follows.

$\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{985 torr \times 105 L}{300 K} = \frac{760 torr \times V_{2}}{273 K}\\V_{2} = \frac{94116.75}{760} L\\= 123.84 L$

Thus, we can conclude that volume occupied by given neon sample at standard condition is 123.84 L.

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2 years ago

What is an example of convection in earths system

padilas [110]

The pool being cooler at the deep end. Also the air closer to the roof of a house being cooler.

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2 years ago

What has its own size and shape

erma4kov [3.2K]

I guess it is gases
I think , coz it has its own shape
Moves randomly

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3 years ago

Try It: Evidence of Population Change

erma4kov [3.2K]

The answer to this would be false.

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3 years ago

Everything that can be measured is made up of _____ and that is made up of small units called _____?

Everything that can be measured is made up of _ and that is made up of small units called _?