Chemistry, 28.10.2019 22:31 kayciemarie9486
Question 2 options:
potassium forms ions with a charge of +1 (ka+). iodine forms ions with a charge of -1. selenium forms ions with a charge of -2 (
imagine that potassium ions and selenide ions combine to form potassium selenide. what numbers would be in the place of x and y in:
kxsey
(use the number 1 even if it isn't strictly necessary)
x= y=
Answers: 3
Chemistry, 21.06.2019 22:30
Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.
Answers: 1
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List four observations that indicate that a chemical reaction may be taking place
Answers: 1
Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
Chemistry, 23.06.2019 03:30
The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?
Answers: 1
Question 2 options:
potassium forms ions with a charge of +1 (ka+). iodine forms ions with a...
potassium forms ions with a charge of +1 (ka+). iodine forms ions with a...
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