Ionization energy increases as you move left to right in a period . that's why noble gases have high ionization energies.
shielding effect increases from top to bottom in a group atomic size also increases from top to bottom in a group
The problem is that you have to balance Cu + AgNO3 = Cu(NO3)2 + Ag
The first step is to identify all the elements and how many atoms of that element there are on either side of the equals sign.
When you do this you will get,
1 Cu 1
1 Ag 1
1 N 2
3 O 6
Next step is to make sure that all the elements are the same on both sides. This is mostly trial and error until you balance both sides.
The solution to the equation would be:
Cu + 2AgNO3 = Cu(NO3)2 + 2Ag
So now if you check your elements, you will get the following:
1 Cu 1
2 Ag 2
2 N 2
6 O 6
As you can see all the elements are equal on both sides, so the equation is balanced.
Answer:
The answer to your question is Abundance N-14 = 99.63%
Abundance N-15 = 0.37%
Explanation:
Data
Average atomic mass = 14.0067 amu
N-14 = 14.003074002
N-15 = 15.00010897
Abundance N-14 = ? x
Abundance N-15 = ? 1 - x
Formula
Average atomic mass = (mass of N-14)x + (mass of N-15)(1 - x)
Substitution
14.0067 = 14.003074002x + 15.00010897(1 - x)
Solve for x
14.0067 = 14.003074002x + 15.00010897 - 15.00010897x
14.0067 - 15.00010897 = 14.003074002x - 15.00010897x
-0.9934 = -0.99703x
x = -0.9934 / -0.99703
x = 0.9963
Conclusion
Abundance N-14 = 0.9963 x 100 = 99.63 %
Abundance N-15 = 1 - 0.9963 = 0.0037 x 100 = 0.37 %
Answer:
O 392 g
Explanation:
39.2 grams of oxygen (O2) can be produced.
<em>Reasons why a 100% yield is not obtained in actual chemical manufacturing processes may be;</em>
- The reactor has a certain capacity to produce a certain yield
- There is a limiting reactant that runs out and the reaction can not proceed any further
It may also be because the reaction is reversible or because of loses of desired product during isolation and purification.
