If the equation is complete the products would be manganese chloride and oxygen gas would be given off.
MnCl2 + O2
B is the correct answer! I learned this in class last week :)
Answer:
473 year
Explanation:
Using integrated rate law for first order kinetics as:
Where,
is the concentration at time t
is the initial concentration
Given:
To reach 12.5% of reactant means that 0.125 of
is decomposed. So,
= 0.125
t = ?
t = 473 year