Chemistry, 22.09.2019 19:50 karmaxnagisa20
Alkali metals, alkaline earth metals, and aluminum all form ions with positive charges equal to the
a. atomic number.
b. group number.
c. period.
d. atomic mass.
Answers: 1
Chemistry, 22.06.2019 10:00
Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption
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, 23.06.2019 09:20
1) a. water molecule breaks up into hydrogen and oxygen on passing electricity. does this involve breaking intermolecular or intramolecular forces of attraction. explain b. on boiling water changes to water vapor. does this involve breaking intermolecular or intramolecular forces of attraction. explain methanol evaporates faster than water. contrast the intermolecular forces and the vapor pressures of methanol and water?
Answers: 2
Alkali metals, alkaline earth metals, and aluminum all form ions with positive charges equal to the<...
Chemistry, 23.07.2019 13:30
Social Studies, 23.07.2019 13:30
History, 23.07.2019 13:30
Arts, 23.07.2019 13:30
Health, 23.07.2019 13:30
Physics, 23.07.2019 13:30
English, 23.07.2019 13:30
Advanced Placement (AP), 23.07.2019 13:30
Arts, 23.07.2019 13:30
Social Studies, 23.07.2019 13:30
History, 23.07.2019 13:30