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27 Cards in this Set
- Front
- Back
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___ ___ compounds contain two elements one metal and one nonmetal.
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Binary ionic
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__- ___ compounds contain three elements at least one metal and one nonmetal.
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Ternary ionic.
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___ ___ compounds contain two elements and both are nonmetals.
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Binary molecular compounds.
Examples of binary molecular compounds are ammonia, NH3, methane, CH, .... |
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An ___ ___ is produced when a compound dissolves in water and is indecated by the symbol (aq).
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Aqueous solution
A binary acid is an aqueous solution of a compound containing hydrogen and one other nonmetal: HCI (aq) is a binary acid. |
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A group of atoms bound together which has an overall charge is a ___ ___.
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Polyatomic ion.
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Metals can lose valence electrons and become positively charged ___.
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Cations.
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___ are named for the parent atom followed by the word "ion".
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Cations.
Na is named sodium ion Al is named aluminum ion This rule applies to most except Tin and Lead. |
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If a metal can form more than one cation it is named for the parent, followed by the charge in Roman numerals in parenthese followed by the word "ion". This is called ___ ___.
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Stock System of naming cations.
Fe2+ is the iron (II) ion Fe3+ is the iron (III) ion |
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The ___ ___ adds suffixes "ous" for lower charged ions and
"ic" for higher charged ions. |
The Latin System.
Cu = Cuprum Cu- = Cuprous ion Cu+ = Cupric ion |
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Monoatomic anions are named by dropping the end of the element name and adding the suffix ___.
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ide.
Br is the bromide ion O2- is the oxide ion N2- is the nitride ion "ide" is negative |
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Group 1A/1 metals always form +1 ions and group IIA/2 always form +2 ions.
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Most transition metals form +2 ions from the loss of their 2 S electrons.
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Group ____ atoms gain 1 electron to form -1 ions:
F, Cl, Br, and I. No gases are included. |
Group VIIA/17 -1
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Group ___ atoms gain 2 electrons to form -2 ions:
O, S, Se, and Te. No gases included in this. |
Group V1A/16 -2
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Group ___ atoms gain 3 electrons to form -3 ions:
N, P, and As. No gases included. |
Group VA/15 -3
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Polyatomic anions generally contain one or more elecments combined with oxygen. These anions are called ___.
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Oxyanions.
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Most oxyanions have names that end in the suffix ____.
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- ATE.
SO4-2 is the sulfate ion No3- is the nitrate ion ATE is more than ITE. ATE ate more than ite. |
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Some oxyanions end in the suffix ___.
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- ITE.
No2- is the Nitrite ion So32- is the sulfite ion These have one less oxygen than sulfate and nitrate. Oxyanions that end in -ite each have one less oxygen than the oxyanions that end with -ate. ATE is more than ITE. ATE ate more than ite. |
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The formula for ClO3-? is chlorate ion so What is the formula for the Chlorite ion?
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Cl02-
is an -ite Ate ate more than ites. |
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There are two additional polyatomic ions that end in -ide: what are they?
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Hydroxide, OH- and
Cyanide, CN- |
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There are nine common polyatomic ions: List them.
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1- NH4- ammonium
2- C2H2O2- acetate 3- CO3-2 carbonate 4- HCO3- Hydrogen carbonate 5- HSO4- Hydrogen sulfate 6- OH- Hydroxide 7- NO3- Nitrate 8- PO4-3 Phosphate 9- SO4-2 sulfate |
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An ___ ___ is composed of positive and negative ions.
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Ionic compound
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A ___ ___ is the simplest representative particle of an ionic compound.
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Formula unit.
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If a formula unit is ____then the total positive charge must equal the total negative charge.
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neutral
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When writing a chemical formula the ___ (___) goes first and the ___ (___) follows and goes second.
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Cation (metal)
Anion (nonmetal) |
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If the ions in the ionic compound have the same charge, the fomula unit contains one of each ion.
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Na+
Cl- to form NaCl Notice it no longer has a + or -. |
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If the ionic charges are no equal, we must balance the positive and negative charges.
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Ca2+
Cl- to form CaCl2- Na+ and O2- form Na2O |
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Al3+
O2- combined equals ___. |
Al2O3
Al3+ has 6 valence electrons O2- has 6 valence electrons 3 / 6 = 2 2 / 6= 3 Therefore Al2O3 Think of it in groups. There are 2 groups of 3 + each and 3 groups of 2 - each It takes 2 groups of 3 to reach a valence of 6. And it takes 3 groups of 2 to equal 6 valence electrons. |
