step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:
Answer from: Quest
answer: answer is c!
ok i got to organize the
3/15 and 12/55
3*
aha
3*4 equals 12 but not
a: no
b:
8/24 12/35
no
gautie
it's c
5/18 = 25/90
5*5=25
18*5 = 90
hope that you!
one more happy customer!
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step-by-step explanation:
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