Answer:
A
Explanation:
Potassium Bromide = KBr
Nitrogen dioxide = NO₂
Lithium oxide = Li₂O
Potassium Bromide (KBr)
89.88 g
Atomic Mass of Ar: 39.948
Mass = moles * AM
Replacing moles = 2.25 and AM = 39.948 you get the mass of Ar:
Mass = 2.25 * 39.948
Mass = 89.88 g
Answer: B.
The rate of the nuclear reaction increases, but the rate of the chemical reaction remains the same