The atomic mass of an element is:
A. The number of protons and electrons
B. The number of pro...
Chemistry, 14.12.2020 20:10 andreapgomezr
The atomic mass of an element is:
A. The number of protons and electrons
B. The number of protons and neutrons
Answers: 2
Chemistry, 22.06.2019 00:00
Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.
Answers: 1
Chemistry, 22.06.2019 14:30
Consider the reduction reactions and their equilibrium constants. cu+(aq)+eโโฝโโโcu(s)pb2+(aq)+2eโโฝโโโpb(s)fe3+(aq)+3eโโฝโโโfe(=6.2ร108=4.0ร10โ5=9.3ร10โ3 cu + ( aq ) + e โ โฝ โ โ โ cu ( s ) k =6.2ร 10 8 pb 2 + ( aq ) +2 e โ โฝ โ โ โ pb ( s ) k =4.0ร 10 โ 5 fe 3 + ( aq ) +3 e โ โฝ โ โ โ fe ( s ) k =9.3ร 10 โ 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
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
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