Chap 4 chemistry test

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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


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