Chemistry Chapter 7
What is the formula for aluminum sulfate?
Al2(SO4)3
Name the compound Al2S3
Aluminum Sulfide
What is the correct formula for copper(I) cyanide?
CuCN
What is the formula for silicon dioxide?
SiO2
What is the chemical formula made of tin(IV) ions and chloride ions?
SnCl4
What follow's an element's symbol in a chemical formula to indicate the number of atoms?
Subscript
Name the compound SO3
Sulfur Trioxide
Name the compound N2O3
Dinitrogen trioxide
What is the correct name for the compound P2Cl4?
Diphosphorus Tetrachloride
What is the formula for barium hydroxide?
Ba(OH)2
What is the empirical formula for benzene, C6H6?
CH
The smallest whole-number ratio of atoms of each element in a compound is known as the
Empirical Formula
What is the name of the compound made of zinc ions and fluoride ions?
Zinc Fluoride
Name the compound Zn3(PO4)2
Zinc Phosphate
What is the formula for zinc fluoride?
ZnF2
How many atoms are present in one formula unit of barium acetate, Ba(C2H3O2)2?
15
If the percentage of sulfur in SO2 is about 50%. What is the percentage of oxygen?
50%
The mass of a molecule is found by
Adding the masses of all the atoms in the molecule
What is the formula for the compound formed by calcium ions and chloride ions?
CaCl2
What is the formula formed by calcium and chloride ions?
CaCl2
The mass of a molecule is found by
Calculate the molar mass of the substance Divide it by Avogadro's Number
Name the compound CF4
Carbon Tetrafluoride
Changing a subscript in a correctly written chemical formula will
Change the formula so that it no longer represents the same compound
To determine the correct formula of a compound from an empirical formula, one must know the
Formula Mass
The platinum(II) ion and platinum(IV) ion
Have charges of 2+ and 4+ respectively
How do you convert from mass to moles?
Mass x1/ molar mass
What is the correct formula for the compound made of magnesium and nitrogen?
Mg3N2
The empirical formula may not represent the actual composition of a(n)
Molecular compound
What is the formula for dinitrogen trioxide?
N2O3
What is the formula for the compound dinitrogen tetroxide?
N2O4
What is the empirical formula for a compound that has 1.18 mol Na, 1.18 mol N, and 3.53 mol O?
NaNO3
Name the compound Ni(ClO3)2
Nickel(II) Chlorate
What is the correct name for the NO3- ion?
Nitrate
What is the formula for diphosphorus pentoxide?
P2O5
The percentage composition of a compound is the
Percent by mass of each element present in a compound
Name the compound KClO3
Potassium chlorate
The first part of the name of a binary ionic compound is the
The cation
The molar mass of water is equal to
The mass of 1mol of O plus the mass of 2mol of H
