I would say the last one because unlike beta and alpha rays they will have no effect on the mass or atomic number because they are just composed of high energy radiation
Delete the cactus and the tree on the right for the first one and the third picture delete the lion moose Buffalo
Answer:
H2O
Explanation:
There are 2 hydrogen atoms and 1 oxygen atom
As I am reading the problem, I see they gave you two pressures, one volume and they are asking for another volume. this should give you a hint that you need to use the following formula.
P1V1= P2V2
P1= 1.00 atm
V1= 0.50 ft³
P2= 3.00 atm
V2= ?
Now we plug the values
(1.00 x 0.50)= (3.00 x V2)
V2= 0.17 ft³
Answer:
a. 
b. 
c. 
Explanation:
Hello,
a. By applying the given information, one obtains:

b. By knowing that the propane has a molecular mass of 44g/mol, one obtains:

c. Here, the propane's combustion chemical reaction is stated:

This enthalpy of reaction is computed via:
Δ
Finally, since it is done for 20 lb of propane (
), the obtainable energy is:

Best regards.