Electrons and Ion Charges
Names and Formulas
Properties
Precipitate Reactions and Moles
100
This is the ion charge this element would form. (The diagram shows the element's valence electrons)
What is -2?
100
This is the name of K₂SO₄
What is potassium sulfate?
100
This type of solid is very brittle
What are ionic solids/compounds?
100
This is how many sodium ions are present when 0.3 moles of Na2O are dissolved.
What is 0.6 moles of Na?
200
This is an element that the diagram below represents. Only the atom's valence electrons are shown.
What is (any element in group 16, oxygen or elements in the same column)
200
This is the chemical formula for aluminum oxide.
What is Al2O3?
200
This is the attraction that holds together metal solids
What is the attraction between + metal ions and the - sea of electrons?
200
This is the complete balanced equation for the reaction between solutions of copper (II) chloride and sodium hydroxide. The products include a copper precipitate.
What is
CuCl2 aq + 2 NaOH aq --> Cu(OH)2 s + 2 NaCl aq ?
300
This is the charge of the Nickel ion in the compound Ni2O.
What is +1?
300
This is the name of CoCl₂
What is cobalt (II) chloride?
300
This explains why metals are conductive as a solid, but ionic compounds only conduct while dissolved/liquid
What is how moving charged particles conduct electricity and only metals have moving charged particles as a solid (the sea of electrons).
300
This is how many moles of precipitate will form if 1 moles of sodium hydroxide react with plenty of copper (II) chloride.
CuCl2 aq + 2 NaOH aq --> Cu(OH)2 s + 2 NaCl aq
What is 0.5 moles of precipitate?
400
This is the element that has the same number of electrons as a nitrogen ion.
What is Neon?
400
This is the correct formula for iron (III) phosphide.
What is FeP?
400
At the end of the precipitate reaction, these ions are least attracted to each other.
What are the ions not in the precipitate?
OR
What are the ions in the dissolved product?
400
This is the liters of a 2 M NaCl solution needed to make 4 moles of CuCl2.
What is 4 L?