Chem101 Chapter 2 Homework
Write the empirical formula corresponding to AL2BR6
AlBr lower 3
Determine the formula for aluminum oxide
Al₂O₃
Predict the chemical formula for the ionic compound formed by Ca^2+ and CIO^3-
Ca(ClO₃)₂
Which has the correct name-formula combination?
Calcium sulfite - CaSO₃
Determine the formula for cobalt (III) hydroxide?
Co(OH)₃
Which of the following represents a species with 39 protons and 36 electrons?
Y^3+
What is the correct IUPAC name for P₄S₃?
tetra phosphorus tri sulfide
How many protons and electrons are found in Sc^3+ ion?
21 protons, 18 electrons
How many protons are in an atom of Ga?
31
How many oxygen atoms are in 32 molecules of dinitrogen tetroxide, N^2o^4?
4 x 32 = 128 atoms
What is the mass number of zinc-70?
70
Write the chemical formula for iron (III) chloride hexahydrate
FeCl₃•6H₂O
Write the chemical formula for acetic acid
HC₂H₃O₂
Write the chemical formula for mercury (II) nitrate monohydrate
Hg(NO₃)₂•H₂O
Write the chemical formula for sulfuric acid
H₂SO₄
Write the chemical formula for sodium hydride
NaH
Which of the following is best classified as a covalent compound?
N₂O₅
Write the empirical formula corresponding to P₄O₁₀
P₂O₅
Write the chemical formula for tetraphosphorus hexasulfide
P₄S₆
What is the correct IUPAC name for Cr₂O₃?
chromium (III) oxide
What is the correct IUPAC name for Fe(NO₂)₂?
iron (II) nitrite
What is the correct IUPAC name for MnCl₃ · 4H₂O?
manganese (III) chloride tetra hydrate
What is the correct IUPAC name for MnF₃?
manganese (III) fluoride
What is the correct IUPAC name for KClO₃?
potassium chlorate
What is the correct IUPAC name for KF?
potassium fluoride
What is the correct IUPAC name for K₂SO₄?
potassium sulfate
What is the correct IUPAC name for Rb₃N?
rubidium nitride
Which of the following is a transitional metal?
silver
The atomic mass of germanium (Ge) on the periodic table is 72.630 amu. Which of the following best explains why the atomic mass is a fraction between 72 and 73?
the presence of different isotopes
