All of the choices would affect the rate
Answer:
Lead forms an amalgam when filings are mixed with mercury and is also listed as a naturally occurring alloy called leadamalgam in the Nickel Strunz classification.
Explanation:
Brainliest please?
The best answer would be A.) stay in the car.
-do not have windows open, and do not touch the outside of the car.
2H₂ + O₂ -------> 2H₂O
mole of H₂ =
=
= 0.7 mol
mole ratio of H₂ : H₂O
= 1 : 1
∴ if mole of H₂O = 0.7 mol
then mole of water = 0.7 mol
Thus:
mass of water = mole x Mr
= 0.7 mol x ((2 x 1) + (1 x 16))
= 12.6 g of water vapour
Answer:
Explanation:
In this, we can with the <u>ionization equation</u> for the hydrazoic acid (). So:
Now, due to the Ka constant value, we have to use the whole equilibrium because this <u>is not a strong acid</u>. So, we have to write the <u>Ka expression</u>:
For each mol of produced we will have 1 mol of . So, we can use <u>"X" for the unknown</u> values and replace in the Ka equation:
Additionally, we have to keep in mind that is a reagent, this means that we will be <u>consumed</u>. We dont know how much acid would be consumed but we can express a<u> subtraction from the initial value</u>, so:
Finally, we can put the ka value and <u>solve for "X"</u>:
So, we have a concentration of 0.000285 for . With this in mind, we can calculate the <u>pH value</u>:
I hope it helps!