Generally speaking a precipitate is something that will form as a result of the reaction. It generally is a solid material.
Sodium and nitrates are soluble so Calcium Phosphate would precipitate out....
Hello!
Find the Energy of the Photon by Planck's Equation, given:
E (photon energy) =? (in Joule)
h (Planck's constant) = ![6.626*10^{-34}\:J * s](https://tex.z-dn.net/?f=%206.626%2A10%5E%7B-34%7D%5C%3AJ%20%2A%20s%20)
f (radiation frequency) =
Therefore, we have:
![E = h*f](https://tex.z-dn.net/?f=%20E%20%3D%20h%2Af%20)
![E = 6.626*10^{-34}*8*10^{12}](https://tex.z-dn.net/?f=%20E%20%3D%206.626%2A10%5E%7B-34%7D%2A8%2A10%5E%7B12%7D%20)
![E = 53.008*10^{-34+12}](https://tex.z-dn.net/?f=%20E%20%3D%2053.008%2A10%5E%7B-34%2B12%7D%20)
![E = 53.008*10^{-22}](https://tex.z-dn.net/?f=%20E%20%3D%2053.008%2A10%5E%7B-22%7D%20)
![\boxed{\boxed{E = 5.3008*10^{-21}\:Joule}}\end{array}}\qquad\checkmark](https://tex.z-dn.net/?f=%20%5Cboxed%7B%5Cboxed%7BE%20%3D%205.3008%2A10%5E%7B-21%7D%5C%3AJoule%7D%7D%5Cend%7Barray%7D%7D%5Cqquad%5Ccheckmark%20)
I Hope this helps, greetings ... DexteR! =)
Answer:
The new pressure is 53.3 kPa
Explanation:
This problem can be solved by this law. when the volume remains constant, pressure changes directly proportional as the Aboslute T° is modified.
T° increase → Pressure increase
T° decrease → Pressure decrease
In this case, temperature was really decreased. So the pressure must be lower.
P₁ / T₁ = P₂ / T₂
80 kPa / 300K = P₂/200K
(80 kPa / 300K) . 200 K = P₂ → 53.3 kPa
Answer:
a.cations form when an atom gains electrons
1. C
2. D (I’m not entirely sure)
3.energy can neither be created nor destroyed, only change forms.
4. C
5. A
6. C
I’ve researched and tried to answer these questions correctly.