Chapter 7

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41 terms

How many atoms of fluorine are present in a molecule of carbon tetrafluride, CF4?

4

Does NaCl (table salt) represent a molecule?

No

What is the formula for zinc fluoride?

ZnF2

What is the formula for the compound formed by calcium ions and chloride ions?

CaCl2

What is the formula for aluminum sulfate?

Al2(SO4)3

What is the formula for tin(IV) chromate?

Sn(Cro4)2

Name the compound Fe(NO2)2

iron(II) nitrite

Name the compound CuCO3

copper(II) carbonate

Using the Stock system, name the compound PbO

lead(II) oxide

Name the compound N2O4

dinitrogen tetroxide

Which compound's name includes the greek numberal prefixes di- and tri-? a. Fe2O3 B. Ca3(PO4)2 c. N2O3 d. Al2S3

c. N2O3

Name the compound N2O3

dinitrogen trioxide

What is the oxidation number of an uncombined element?

0

In a compound, the algebraic sum of the oxidation numbers of all atoms equal

0

In a polyatomic ion, the algebraic sum of the oxidation numbers of all atoms is equal to

the charge of the atom

What is the oxidation number of carbon in Cl4?

+4

What is the oxidation number of hydrogen in KH?

+1

What is the oxidation number of hydrogen in H20?

+1

Name the compound PBr5 using the Stock system

phosphorus(V) bromide

what is the formula mass of magnesium chloride, MgCl2?

95.211 amu

what is the formula mass of ethyl alcohol, C2H5OH?

46.069 amu

the mola mass of NO2 is 46.01 g/mol. how many moles of NO2 are present in 114.95 g?

2.498 mol

what is the percentage composition of CF4

13.6% C, 86.45 F

What is the percentage composition of OH- in Ca(OH)2

45.9%

what is the percentage composition of oxygen in H2O

88.8%

how many valence electrons does a carbon atom have?

4

what do all organic compounds contain?

carbon

what kind of formula shows the numbers and types of atoms in a molecule but not the bonds?

molecular formula

what kind of formula shows the numbers and types of atoms in a molecule and the bonds?

structural formula

hydrocarbons in which carbon atoms are connected by only single bonds in straight chains or branched chains are called ?

alkanes

is propane an alkane?

yes

Name the chemical compound: NaBr

sodium bromide

Name the chemical compound: Ca(C2H3O2)2

calcium acetate

Name the chemical compound: P2O5

diphosphorus pentaoxide

Name the chemical compound: Ti(SO4)2

titanium sulfate

Name the chemical compound: FePO4

iron(III) phosphate

write the formula for the chemical compound: silicon dioxide

SiO2

write the formula for the chemical compound: nickel (III) sulfide

Ni2S3

write the formula for the chemical compound: manganese (II) phosphate

Mg(PO4)

write the formula for the chemical compound: silver acetate

Ag (CH3OO)

write the formula for the chemical compound: diboron tetrabromide

B2Br4

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