Answer: A. . . . . . . . . .
I can’t do that check mark thing so I’ll use ! instead.
!12+2!8-12!2
!12 2!8
2!3+2!8-12!2
!8 2!2
2!3+2x2!2-12!2
2x2!2 4!2
2!3+4!2-12!2
2!3+(4!2-12!2)
2!3-8!2
Find the value of x in the triangle in the picture.
2 answers:
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Answer: It will take 6 years for 7500 grams of X to reach 6900 grams.
Step-by-step 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
a - x = amount left after decay process
a) for completion of half life:
Half life is the amount of time taken by a radioactive material to decay to half of its original value.
b) for 7500 g to reach to 6900 g
It will take 6 years for 7500 grams of X to reach 6900 grams.