Answer:
CaCl2 is a reactant
Explanation:
Calcium carbonate (CaCO3) is a reagent, it is found on the left side, what is found on the right side are the products.
It stops cause of gravitaional pull
Answer:
The final pressure of oxygen gas is 8.33 atm.
Explanation:
From the given data
V=26 m^3 or 26000 L
T1=270K
T2=440K
n1=6000 moles
R=0.0821 L.atm/molK
Now from the ideal gas equation

As the options given are not defined in which unit thus the final pressure of oxygen gas is 8.33 atm.
<em>*The options are provided for a different question where </em>
There are no appropriate units for power on the list you provided