Answer:
37.046 grams of oxygen gas were produced.
Explanation:

Moles of potassium chlorite = 
According to reaction 2 moles of potassium chlorite gives 3 moles of oxygen gas.
Then 0.7718 moles of potassium chlorite will give:
of oxygen gas.
Mass of 1.1577 moles of oxygen gas:
1.1577 mol × 32 g/mol = 37.046 g
37.046 grams of oxygen gas were produced.
As a trend or pattern, the atomic radius decreases as you go left to right across the period, but increases as you go down a particular group.
Atoms of one element are converted to atoms of another element through transmutation or nuclear transmutation.
Answer:
<h3>The answer is 0.73 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 620 g
volume = 850 mL
We have

We have the final answer as
<h3>0.73 g/mL</h3>
Hope this helps you
B.
I hope this will help a bit (Forgive me of its wrong pls)