Answer:
C
Explanation:
same electron configuration
<span>a) The strong nuclear force
</span>
323.5g - 301.2g = 22.3g is the change in mass.
Answer:
2.772 seconds
Explanation:
Given that;
t1/2 = 0.693/k
Where;
t1/2 = half life of the reaction
k= rate constant
Note that decomposition is a first order reaction since the rate of reaction depends on the concentration of one reactant
t1/2 = 0.693/2.5 x 10-1 s-1
t1/2= 2.772 seconds
Answer:
because the number of electrons and protons differs
