The salt formed by the reaction of the weak acid hydrocyanic acid, hcn, with the strong base potassium hydroxide is
potassium cyanide, kcn. what is the hydroxide ion concentration of a 0.255 m solution of potassium cyanide at 25 °c
given that the value of for hydrocyanic acid is 4.9 x 10-102
Answers: 1
Chemistry, 22.06.2019 12:30
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
Chemistry, 22.06.2019 22:00
The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.
Answers: 2
Chemistry, 23.06.2019 05:30
Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.
Answers: 2
The salt formed by the reaction of the weak acid hydrocyanic acid, hcn, with the strong base potassi...
Mathematics, 21.09.2021 04:10
English, 21.09.2021 04:10
Chemistry, 21.09.2021 04:10
Chemistry, 21.09.2021 04:20
Mathematics, 21.09.2021 04:20
Chemistry, 21.09.2021 04:20
History, 21.09.2021 04:20
History, 21.09.2021 04:20
Computers and Technology, 21.09.2021 04:20
Mathematics, 21.09.2021 04:20
Mathematics, 21.09.2021 04:20
Physics, 21.09.2021 04:20
History, 21.09.2021 04:20