Which of the following combinations of particles represents an ion of net charge -1 and of mass number 82? group of answer choices:
a) 46 neutrons, 35 protons, 36 electrons
b) 46 neutrons, 36 protons, 35 electrons
c) 46 neutrons, 36 protons, 36 electrons
d) 47 neutrons, 35 protons, 35 electrons
e) 47 neutrons, 35 protons, 36 electrons
Answers: 1
Chemistry, 21.06.2019 15:00
Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)
Answers: 3
Chemistry, 22.06.2019 21:30
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
Chemistry, 23.06.2019 19:30
⁉️how many kj of energy would be needed to convert 150. g of ammonia to vapor at its boiling point? ⁉️(ammonia’s heat of vaporization is 1.38 kj/g
Answers: 3
Chemistry, 23.06.2019 21:30
Enzymes are always consumed by catalyzing a reaction increase the rate at which a reaction occurs sometimes increase the amount of energy necessary to initiate a reaction catalyze reactions that release energy, but not those that consume energy
Answers: 1
Which of the following combinations of particles represents an ion of net charge -1 and of mass numb...
Computers and Technology, 26.06.2019 13:30
Mathematics, 26.06.2019 13:30
Computers and Technology, 26.06.2019 13:30
Mathematics, 26.06.2019 13:30
Mathematics, 26.06.2019 13:30
Chemistry, 26.06.2019 13:30
Physics, 26.06.2019 13:30