Explanation:
12.0 mol KClO3 × (3 mol O2/2 mol KClO3)
= 18.0 mol O2
Answer:
<h2>Density = 2700 g/L</h2>
Explanation:
Density of a substance can be found by using the formula
From the question
volume = 0.015 L
mass = 40.5 g
Substitute the values into the above formula and solve for the Density
That's
We have the final answer as
Density = 2700 g/L
Hope this helps you
Answer:
Explanation:
When we react Hydrochlorid Acid with zinc we have the following reaction:
2HCl(aq) + Zn(s) --> ZnCl2(aq) + H2(g)
The hydrogen gas formed is lost to the environment, so we can affirme that in the start we have the mass for all the H, Cl and Zn atoms in the solution, but after the reaction occurs, we have only the mass for the Cl and Zn atoms.
That's why the mass is less than the original.
The law that the student was told is only applied to closed environments.
They are known as “American Central”
