After that have been up for a while thay are metal
That is Magnesium Chloride.
Answer:
<h2>7142.86 moles</h2>
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>7142.86 moles</h3>
Hope this helps you
the effects are: temperature rises, water shortages, and increased fire threats