Answer:
393.1 KPa
Explanation:
Now we have to use the general gas equation;
P1V1/T1 = P2V2/T2
P1= initial pressure of the gas= 1.00atm
V1 = initial volume= 700.0 ml
T1= initial temperature= 0.0°C +273= 273K
V2= final volume= 200.0 ml
T2= final temperature =30.0°C +273= 303 K
P2= final pressure =????
Therefore;
P2= P1V1T2/ V2T1
P2= 1.00 × 700.0 × 303/ 200.0 × 273
P2= 3.88 atm
But
1 atm = 101.325 kilopascals
Therefore 3.88 atm = 3.88 × 101.325 kilopascals = 393.1 KPa
Answer:
4 Fe + 3 O2 -> 2Fe2O3
Explanation:
For the equation to be balanced with whole numbers, you need to double the amount of Fe2O3. This gives 6 oxygen molecules and 4 Fe molecules.
So the number of atoms will be Fe = 4 and O = 6.
For the visual Model Key, you will most likely have, 4 separate Fe molecules and 3 oxygen molecules (since oxygen exists as a diatomic - 2 oxygen molecules are attached to each other). For Fe2O3 you will have 2 molecules that go O-Fe-O-Fe-O.
Answer:
D is the correct answer.
Explanation:
I took the test on A pex. Everyone make sure you look at your answers. They are NOT always in the same order.
Answer:10,000
Explanation:When you look at the chart at 15 degrees, it is at 10,00. Hope this is right <3 Sorry if not :)