This statment is false, the pen on a seismograph does not swing freely.
Answer:
C. Atomic mass
Explanation:
i just did the quiz and got 100 :) i hope I get brainiest answer
<span>Okay then I would go with choice B since fusion takes place in the sun which is a giant star.</span>
Answer:
0.41 moles.
Explanation:
Given that:
Mass of helium = 4.00 g
Initial Volume = 24.4 L
initial Temperature = 25.0 °C =( 25 + 273) = 298 K
initial Pressure = 1.00 atm
The volume was reduced to :
i.e
final volume of the helium - 10.4 L
Change in ΔV = 24.4 - 10.4 = 10.0 L
Temperature and pressure remains constant.
The new quantity of gas can be calculated by using the ideal gas equation.
PV = nRT
n = 
n = 
n = 0.4089 moles
n = 0.41 moles.