Chemistry, 16.12.2020 04:10, Lydiaxqueen
2. Imagine there is a piece of lead (Pb) that has 1,000,000 atoms in it and a piece of cobalt (Co) with 1,000,000
atoms in it. Interpret the properties of the two atoms and make a scientifically supported judgement on
which piece has a greater mass. (max 7/8)
Answers: 3
Chemistry, 21.06.2019 23:30, huangjianhe135
Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211
Answers: 2
Chemistry, 22.06.2019 06:00, momof7hardings
When would a bouncy ball have the most potential energy
Answers: 2
Chemistry, 22.06.2019 18:00, kingamir
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
2. Imagine there is a piece of lead (Pb) that has 1,000,000 atoms in it and a piece of cobalt (Co) w...
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