B i’m pretty sure, because the heavier the better it works
Answer:
1 I'm doing this in science class right now I got help yesturday on it! hope this helps
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!
2. <span>1/8 = (1/2)³ </span>
<span>so it's 3 half lives.</span>
