Answer:
The half life time of first order reaction is 1.3 sec
Explanation:
Given:
First order rate constant

Initial concentration
M
From the formula of first order half life time,

So half life time is given by,

sec
Therefore, the half life time of first order reaction is 1.3 sec.
Answer:
A
Explanation:
Oceanic crust is thinner and more likely to sink
The answer would be D. because when an acid and base mix the start to cancel each other out causing it to neutralize