Q1
The following apparatus can be used to compare the rates of diffusion of the two gases
est...
Q1
The following apparatus can be used to compare the rates of diffusion of the two gases
estamine and hydrogen bromide
gives
gives of
снення)
HBS)
B CA
cotton wool soaked in
ethylamine)
cotton wool soaked in
conc. hydrobromic acid
Prediet at which pos. don. A BoC. the white solid will form. Explain your choice.
Answers: 3
Chemistry, 22.06.2019 06:00
An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.
Answers: 2
Chemistry, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 3
Chemistry, 23.06.2019 00:30
Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12
Answers: 2
Mathematics, 05.06.2020 00:01
Mathematics, 05.06.2020 00:01
Chemistry, 05.06.2020 00:01
Mathematics, 05.06.2020 00:01
Mathematics, 05.06.2020 00:01