Gases take the shape of their container and have no definite volume because they can diffuse indefinitely. Answer C.
B. do the experiment more than once
Explanation:
To do a multiple trials of an experiment, it is best to do the experiment more than once.
Experimental trials are mere replication of the procedures in an experiment.
- Most hypothesis on which experiments are based must be repeatable.
- When experiments are repeated through several trials, their accuracy is increased.
- Multiple trials clearly makes it easy to make meaningful deductions from an experimental process.
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The "Ideal Gas Law Equations" is

P= Pressure (in Pascals)
V=Volume (in Liters)
n=amount, or <u>
n</u>umber (in moles)
R= 8.3145

or

T= Temperature (In Kelvin)

Plug into the equation and you're good!



If your teacher cares about sig figs,
2 sig figs (significant figures)

For other units of pressure,
1 atm = 760 mmHG = 760 Torr = 101326 Pa = 1.01325 bar<u />