Ionization energy increases from left to right in the row and from bottom to top in a column. Also as we get closer to the nucleus it would be harder to take electrons out. B (atomic #5) has 2 layers of electron 2 and 3 atom in each layer. P has 15 so it would be 2,8 and 5 respectively. Ca is 20 so 2,8,8,2 and Zn is 30 and it would be 2,18,8,2.
For energy between second and third ionization we are looking at taking out the 3rd electron. B already has 3 electron in the first layer so its easy to take them all. P has 5 in the last layer so again easy. But when we look at Ca and Zn after the 2nd electron (in the last layer) we should change the layer go one layer inside. So this needs more energy. To pick between Zn and Ca (they are in the same row) I mentioned earlier that in one row as we go to the right ionization energy increases so the answer is Zn.
Explanation: 7 jhhjuiuubiygi77jh7iyhhu
Hey there!:
Option B,CO2 at 353K
*Since most collisions means that highest kinetic energy.
*As we know that kinetic energy of gas molecules is directly proportional to absolute temperature
*More the temperature, More the kinetic energy.
* Hence B is the correct answer as it has highest temperature.
Hope this helps!
Answer:
4.5 moles H₂O
or
81.072 g H₂O
Explanation:
I am not exactly sure whether you want moles H₂O or grams H₂O. So, I'll calculate both. To find the moles H₂O, you'll need to covert moles C₈H₁₈ to moles H₂O via the mole-to-mole ratio from the reaction coefficients. To find the grams H₂O, you need to convert moles H₂O to grams H₂O via the molar mass.
2 C₈H₁₈ + 25 O₂ ---> 16 CO₂ + 18 H₂O
0.5 mole C₈H₁₈ 18 moles H₂O
----------------------- x ------------------------- = 4.5 moles H₂O
2 moles C₈H₁₈
Molar Mass (H₂O): 2(1.008 g/mol) + 16.00 g/mol
Molar Mass (H₂O): 18.016 g/mol
4.5 moles H₂O 18.016 g
---------------------- x ---------------- = 81.072 g H₂O
1 mole