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Chemistry, 22.04.2021 08:00 karankhatri1946
How does natural selection change the traits of living things over long periods of time? *
A. Organisms with favorable variations of traits will live longer
B. Organisms with favorable variations of traits are more likely to survive and reproduce
C. Organisms are always changing traits
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Chemistry, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
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How does natural selection change the traits of living things over long periods of time? *
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