Answer:
<h3>The answer is 0.23 moles</h3>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula

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 we have

We have the final answer as
<h3>0.23 moles</h3>
Hope this helps you
If combined with oxygen. the reaction is usually combustion. in this case, it is the combustion of ethene
The correct answer is 2. Magnetic fields must start at the north pole of a magnet and end at the south pole of a magnet. I took the test. Hope I helped!
Answer:
Al
Explanation:
Protons = mass number - neutrons 56-30 =26 closest is Al 27
Also in group 13 which loses 3 electrons to be +3
<span>113 ml = 0.113L
0.52M = 0.52 mol/L
(0.52 mol/L) x 0.113L = 0.059 mol x (molar mass of Ca) = your answer. </span>