Chemistry, 24.04.2021 04:30 linag969p9xeno
Do you really get 7 years of bad luck if you crack a mirror :(
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Chemistry, 22.06.2019 00:20
What are the spectator ions in 2h+ + so42- + ca2+ + 2r โ caso4 + 2h+ + 21?
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Chemistry, 22.06.2019 09:20
How have the greenhouse gasses increased from the year 2000 to 2018
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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]
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Chemistry, 22.06.2019 19:50
When the mercury level in a barometer decreases that atmospheric pressure has
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Do you really get 7 years of bad luck if you crack a mirror :(...
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