5) 0.028 g of (NH4)2SO4
= ? moles N

0.0002118973 moles

Explanation:  https://www.webqc.org/molecular-weight-of-%28NH4%292SO4.html

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )