Chap 4 chemistry test
Sulfur forms an ion with a charge of
-2
Predict the the charge of the most stable ion of S
-3
The correct name for K2S is
potassium sulfide
Which element is described by the following electron configuration? 1s22s22p63s23p2
silicon
The correct name of the compound Na3N is
sodium nitride
The correct name forSrO is_____________
strontium oxide
Soduim forms ions with a charge of
1+
Iodie forms an ion with a charge of
1-
How many electrons does Ai+3 posses?
10
Barium forms an ion with a charge of
2+
Calcium forms an ion with a charge of
2+
How many total carbonate ions would be present in the formula for aluminum carbonate?
3
Aluminum forms an ion with a charge of
3+
The charge on the manganese in the salt MnCl3 is
3+
Aluminum reacts with a certain nonmetallic element to form a compound with the general formula Al2X3. Element X must be from Groupof the Periodic Table ofElements.
6A (16)
When calcium reacts with sulfur the compound formed is
CaS or CaS
he correct name forCu(CN)2is
Copper (II) cyanide
Which one of the following compounds is copper(I)chloride?
CuCl
Which formula/name pair is incorrect?
Fe2(SO4) 3iron(III )sulfide
The correct formula of iron(III)bromide is
FeBr3
Anions have a ___________ charge, and cations have a ________ charge
negative, postive
luminum reacts with a certain nonmetallic element to form a compound with the general formulaAlX. Element X is a diatomic gas at room temperature. Element X mustbe.
nitrogen
Anions tend to be _______ and cations tend to be ___________
nonmetals, metals
The charge on the iron ion in the salt Fe2O3 is
+3
Bromine forms an ion with a charge of
-1
Floride forms an ion with a charge of
-1
Oxygen forms an ion with a charge of
-2
The formula of ammonium carbonate is
(NH4)2CO3
What is the correct formula for ammonium sulfide?
(NH4)2S
The formula for aluminum hydroxideis
Al(OH)3
Predict the formula of the ionic compound that forms from aluminum and oxygen.
Al2O3
typically forms ions with 2+ charge
Alkaline earth metals
Which metal is not required to have its charge specified in the names of ionic compounds it forms?
Ca
The ions Ca2+ and PO43- form a salt with the formula
Ca3(PO4)2
Predict the formula of the ionic compound that forms from Calcium and Fluorine.
CaF2
Which of the following compounds would you expect to be ionic?
CaO
Magnesium reacts with a certain element to form a compound with the general formula MgX. What would the most likely formula be for the compound formed between Lithium andelementX?
Li2X
Predict the formula of the ionic compound that forms from magnesium andfluorine.
MgO
Which formula/name pair is incorrect?
Mn(NO3)2 magnesium(II)nitrate or Mg3N2magnesium nitrate
which species below is the nitride ion
N3-
Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2.What would be the most likely formula for the compound formed between sodium and the polyatomic ion X?
Na3X
Element M reacts with fluorine to form an ionic compound with the formula MF3. The M-ion has 18 electrons. Element M is.
Sc
Which metal is capable of forming more than onecation?
Sn
What is the formula of the compound formed between strontium ions and nitrogenions?
Sr3N2
Which of the following compounds would u expect of be ionic?
SrCl2
Which pair of compounds will give similar flame colors when heated?
SrCl2, Sr(NO3)2
The correct name for Al2O3 is
aluminum oxide
The name of the ionic compound (NH4)3PO4 is
ammonium phosphate
Which pair of elements is most likely to form a ionic compound?
barium, chloride
Chromium and chlorine form an ionic compound whose formula is CrCl3. The name of this compound is
chromium (III) chloride
Metals tend to ________ electrons and nonmetals tend to _________ electrons
lose, gain
