Radium and polonium is the answer to this question. I hope I helped out!
Answer:
The answer is
<h2>2.049 × 10²⁴ particles</h2>
Explanation:
To find the number of entities or particles given the number of moles of a substance we use the formula
<h3>N = n × L</h3>
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
n = 3.4 mol
We have
N = 3.4 × 6.02 × 10²³
We have the final answer as
<h3>2.049 × 10²⁴ particles</h3>
Hope this helps you
I hope this helps! please tell me if it’s wrong.
1 mole of CO2 has 44g
so 1,5 moles would have 1,5*44=66g
the answer is 1) 66g