Answer:
A
Explanation:
I guess it's a, because nuclear decay is likely to occur when either the mass or atomic number is greater than 83.
Hey there!
Molar mass of magnesium is 24.305.
One mole of magnesium has a mass of 24.305 grams.
We have 1.75 moles.
Multiply 1.75 by 24.305.
1.75 x 24.305 = 42.5
1.75 moles of magnesium has a mass of 42.5 grams.
Hope this helps!
