Polyatomic Ions
What is the name of this polyatomic ion: SO42-
Sulfate
What are the prefixes associated with the following numbers?
A) 5
B) 4
C) 8
A) Penta, B) Tetra, C) Octa
What is Avogadro's number?
6.022x1023
When writing chemical formulas for ionic compounds, the ______ is written first (left) and the _______ is written second (right).
Cation/metal ; anion/non-metal
Nonmetals are cations or anions?
Anions
How many total atoms are in: (NH4)3PO3
19
What is the chemical name of H2O?
Dihydrogen monoxide
How many eggs are in five dozen eggs?
Dozen= 12 count
60 eggs
What is the name for LiCl
Lithium Chloride
What is the formula for a A chlorine molecule?
Cl2
What is the chemical formula for magnesium carbonate?
MgCO3
What is the difference between molecular compounds and ionic compounds?
Molecular compounds are made of two nonmetals and ionic compounds are made of a metal and a non-metal.
Which of these samples contains more atoms (use your periodic table!)
A) 1 gram of Bromine
B) 1 gram of Boron
C) 1 gram of Iron
What is the chemical formula for Iron(III) Chloride?
FeCl3
What is the name of this ionic compound: Rb2Cr2O7
Rubidium Dichromate
What is the name of (NH4)3PO3
Ammonium phosphate
What is the chemical formula for Octacarbon Disulfide
C8S2
How many grams does 2.0x105 Carbon atoms weigh?
Avogadro's number: 6.022x1023 atoms
Atomic mass of Carbon: 12.01g
3.98x10-18
What is the name for this chemical formula: V2Se3
Vanadium (III) Selenide
What is the formula for nitrous acid?
HNO2
What is the chemical formula for Ammonium Dihydrogen Phosphate?
NH4H2PO4
What is the name of Br7F3?
heptabromine trifluoride
A sample of Iron has a mass of 133.8g. How many moles of Iron atoms does it contain?
2.396 moles of Iron atoms
What is the formula for Cobalt (II) Dichromate?
Co(Cr2O7)
Name all the diatomic molecules (there are 7 of them!)
Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, Bromine