Chemistry, 22.11.2019 19:31, lovemusic4
Giselle is pairing ions to create stable binary ionic compounds. she knows that the sum of charges of the two ions must be zero in order for the compound to be stable. which ion could be paired with a potassium ion, k +, to form a stable binary compound? beryllium, be 2+ fluorine, f − lithium, li + oxygen, o 2−
Answers: 3
Chemistry, 22.06.2019 13:30, citlalli30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
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
Chemistry, 23.06.2019 03:10, 3jazybraxy
Which is true according to the law of conservation of energy
Answers: 1
Giselle is pairing ions to create stable binary ionic compounds. she knows that the sum of charges o...
Health, 30.11.2020 22:10
Health, 30.11.2020 22:10