Select all the correct answers.
Why do the atoms in a piece of copper metal have no net charge?
1.The charges of the positive and negative copper ions cancel each other out.
2.The number of electrons surrounding each copper nucleus doesn’t change.
3.Copper atoms can’t lose electrons without a substance present to gain electrons.
4.When a copper atom loses electrons, it also loses a corresponding number of protons.
5.The copper atoms exchange neutrons instead of electrons.
Answers: 2
Chemistry, 21.06.2019 18:40
Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reactants. consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).
Answers: 1
Chemistry, 21.06.2019 21:30
Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10^-3 m and k for the dissociation is 1.86x10^-5. ch3cooh(aq)+h2o(> h3o^+(aq)+ch3coo^-(aq)
Answers: 2
Chemistry, 21.06.2019 23:00
Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?
Answers: 1
Chemistry, 22.06.2019 08:30
What are the first three quantum numbers for the electrons located in subshell 2s?
Answers: 2
Select all the correct answers.
Why do the atoms in a piece of copper metal have no net charge?
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Health, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Spanish, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Mathematics, 10.09.2020 08:01
Spanish, 10.09.2020 08:01