Chemistry, 08.01.2021 17:40 sighgabbie
Which statement is true about relative dating and radioactive dating?
A. both use laboratory techniques to find an exact age
B. both use the method of superposition
C. both compare rocks to the earth layer they were found in
D. both compare the object to an event in history
Answers: 2
Chemistry, 22.06.2019 06:30
The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what
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Chemistry, 22.06.2019 08:30
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
Chemistry, 22.06.2019 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
Which statement is true about relative dating and radioactive dating?
A. both use laboratory techni...
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