According to the main characteristics of water, the <span>property of water which makes it helpful to use in car radiators is being shown in the last opton from the scale : </span><span>C) Water takes long to heat and cool down than other liquids. Such property is the only one that logically suits the task.
I'm sure it helps!</span>
Answer: It will take 6.93 sec for tracer concentration to drop by 50% and 13.9 sec for tracer concentration to drop by 75%
Explanation:
Expression for rate law for first order kinetics is given by:
where,
k = rate constant =
t = age of sample
a = let initial amount of the reactant = 100 g
a - x = amount left after decay process
a) for tracer concentration to drop by 50%
a - x = amount left after decay process
= 50

It will take 6.93 sec for tracer concentration to drop by 50%
b) for tracer concentration to drop by 75 %
a - x = amount left after decay process
= 25
It will take 13.9 sec for tracer concentration to drop by 75%.
570/8.5=67.0 58... you only have to take the natural part, si the answer is 67 students
Carbon has the highest ionization energy as its energy 1086KJ\Mol and the rest are between 500 and 800.