Answer:
0.025536g
Explanation:
no. of mole = mass/Mr
mass = Mr × no. of mole
= [23 + 1 + 12 + 3(16)] × 3.04×10^-4
= 0.025536g
= 0.0255g (3 significant figures)
<u>The addtion of energy</u> <span>is usually needed to help a decomposition reaction occur</span>
A: It prevents most reactions from occurring spontaneously.
The answer above is correct.
No, more than 1 paratical
