Chemistry, 24.02.2020 18:27 dlewis2560
Write equations to represent positive and negative ion formation for the following pairs of elements. Then write a formula
for the ionic compound that results when the ions combine.
a. Ca and S
b. Mg and N
c. elements number 19 and 17
Answers: 2
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 18:00
Many pharmaceutical drugs are organic compounds that were originally synthesized in the laboratory. which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology
Answers: 2
Chemistry, 23.06.2019 04:00
Silver reacts with oxygen to produce silver oxide. (write balanced chemical equation and identify type of chemical reaction.)
Answers: 1
Write equations to represent positive and negative ion formation for the following pairs of elements...
Geography, 28.10.2019 09:31
Biology, 28.10.2019 09:31
Biology, 28.10.2019 09:31
Mathematics, 28.10.2019 09:31
Mathematics, 28.10.2019 09:31
Biology, 28.10.2019 09:31
Mathematics, 28.10.2019 09:31
Mathematics, 28.10.2019 09:31
Biology, 28.10.2019 09:31
Mathematics, 28.10.2019 09:31
Chemistry, 28.10.2019 09:31