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kotegsom [21]
3 years ago
11

What is the difference between liquid water and water vapor?

Chemistry
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

4

Explanation:

4.They are different states of the same pure substance

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Which of the following observations would indicate that a material is a pure substance?
Ira Lisetskai [31]
<span>The answer to the question is the option C. it cannot be physically broken down into different types of atoms. This means that the material is an element, which is a pure substance. Because an element is a pure substance that is formed by one only type of atoms. For example, gold is an element and all its atoms are of the same type. That is also true for any of the 118 elements of the periodic table. Compounds (other kind of pure substances) can be broken down into molecules (which contain different kind of atoms, but always in the same proportion) and mixtures (non pure substances) have different kind of substances.</span>
6 0
3 years ago
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30 its ASAP!!!! What is the volume, in liters, occupied by 0.485 moles of Oxygen gas at 23.0 oC and 0.980 atm?
USPshnik [31]
Use the universal gas formula

PV=nRT
where
P=pressure ( 0.980 atm)
V=volume (L)
T=temperature ( 23 &deg; C = 23+273.15 = 296.15 &deg; K)
n=number of moles of ideal gas (0.485 mol)
R=universal gas constant = <span>0.08205 L atm / (mol·K)

Substitute values,
Volume, V (in litres)
=nRT/P
=0.485*0.08205*296.15/0.980
= 12.0256 L
= 12.0 L (to three significant figures)

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3 years ago
During the observation / question phase of the scientific method, a scientist is usually: collecting data creating graphs and/or
abruzzese [7]

Answer:

Collecting data  

Step-by-step explanation:

During the observation phase of the scientific method, scientists are collecting data.

They can't create graphs or perform calculations, because they are still collecting data, nor can they report results to a colleague, because they have none to report.

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3 years ago
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Skeletal muscle is controlled by the organism.
rosijanka [135]

Some of the muscle attached to the skeleton is voluntary and may be used for movement.

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2 years ago
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What are the three possible combinations of the two types of
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Answer:

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Explanation:

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