Extreme cold which is usually produced by liquid nitrogen. Hope that helps!
Answer:
VP as function of time => VP(Ar) > VP(Ne) > VP(He).
Explanation:
Effusion rate of the lighter particles will be higher than the heavier particles. That is, the lighter particles will leave the container faster than the heavier particles. Over time, the vapor pressure of the greater number of heavier particles will be higher than the vapor pressure of the lighter particles.
=> VP as function of time => VP(Ar) > VP(Ne) > VP(He).
Review Graham's Law => Effusion Rate ∝ 1/√formula mass.
To know the exact amount of sodium hydroxide that the teacher needs to order, we need to know how many students are there and the amount that each student uses.
We will then multiply these two values and get the amount needed to be ordered.
Since you have not provided such data in your question, I will just assume them to show the steps of the solution. You can then apply these steps to the values you have.
Now, assume that a class of 60 students and that each student needs to use 130 grams of sodium hydroxide to use during the lab.
This means that the teacher will order:
130 x 60 = 7800 grams = 7.8 kg of sodium hydroxide
Answer:
molecules
Explanation:
molecules because the summer like atoms and Sciences sciency to be honest
Answer is: hydrogen (cathode), iodine (anode).
The balanced
oxidation half reaction: 2I⁻(aq) →
I₂(s) + 2e⁻.<span>
Iodine is oxidized (lost electrons) from -1
to neutral charge (0).
The balanced reduction
half-reaction: 2H</span>₂O(l) + 2e⁻ → H₂(g) + 2OH⁻.<span>
<span>Hydrogen is reduced (gain electrons) from
+1 to neutral charge.</span></span>
