Answers: 3
Chemistry, 22.06.2019 12:30
Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)
Answers: 1
Chemistry, 22.06.2019 17:00
Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness
Answers: 1
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
Chemistry, 22.06.2019 19:50
Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+
Answers: 1
Work and energy unit test...
History, 24.11.2020 01:50
Mathematics, 24.11.2020 01:50
Spanish, 24.11.2020 01:50
Biology, 24.11.2020 01:50
Social Studies, 24.11.2020 01:50
Computers and Technology, 24.11.2020 01:50
History, 24.11.2020 01:50
Chemistry, 24.11.2020 01:50
Mathematics, 24.11.2020 01:50
Mathematics, 24.11.2020 01:50
Biology, 24.11.2020 01:50
Mathematics, 24.11.2020 01:50
Mathematics, 24.11.2020 01:50