Justin designed an experiment to find out how running up bleachers affects his heart rate. First he records his resting heart
rate and then runs up the bleachers 10 times. Each time he reaches the top, he records his heartrate then rests 20
minutes.
Which is involved in Justin's experiment?
replication
repetition
both repetition and replication
neither repetition nor replication
Answers: 2
Chemistry, 21.06.2019 18:30
Calculate the change in entropy if br2(l) is converted into gaseous br atoms. s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)
Answers: 2
Chemistry, 22.06.2019 04:00
You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present
Answers: 1
Chemistry, 22.06.2019 07:20
Which of these conditions most likely produces an unstable isotope?
Answers: 1
Justin designed an experiment to find out how running up bleachers affects his heart rate. First he...
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