The Periodic Table
What number is used to find the number of protons?
atomic number
How are ions formed?
By losing or gaining valence electrons
What is the correct formula for the compound formed between potassium and nitrogen?
K3N
What type of reaction has a single reactant that breaks down into elements or compounds?
A decomposition reaction
What law must be obeyed when balancing a chemical equation?
Law of Conservation of Mass
How many periods are shown on the periodic table?
7
How are covalent bonds formed?
By sharing electrons
What is the name of the compound ZnBr2?
Zinc (II) bromide
What additional products are formed in an incomplete combustion reaction?
Carbon monoxide and carbon
What is the number in front of a compound called in a chemical equation?
What are the elements in Group 18 called?
Noble Gases
What is a chemical bond between two nonmetals is called?
Covalent bond
If the anion of an acid ends in -ite, how would it be named as an acid?
______ous acid
What type of reaction has two compounds as reactants that switch cations when they react?
A double displacement reaction
What coefficient is missing?
? Al + 6 HCl -> 2 AlCl3 + 3 H2
2
The difference between the atomic mass and protons gives what number?
Number of neutrons
What are the two parts of an ionic bond called?
A cation and an anion
Name the compound CF4?
Carbon tetrafluoride
3 Pb + 2 H3PO4 -> Pb3(PO4)2 + 3 H2
Single displacement
What coefficients are missing?
FeCl3 + ? NaOH -> ? Fe(OH)3 + 3 NaCl
3 and 1
Elements in Group 2A form ions with a charge of ___
+ 2
An ion that is made of two or more atoms is called what?
Polyatomic ion
What is the formula for Chromium (III) Sulfate?
Cr2(SO4)3
What type of reaction is shown?
4 C5H9O + 22 O2 -> 20 CO2 + 18 H2O
Combustion
Balance the following chemical equation:
__KClO3 -> __ KCl + __ O2
2, 2, 3
Name all 3 subatomic particles.
Protons, Neutrons, and Electrons
CO2 has this type of bond
Covalent bond
What is the formula for trisilicon tetranitride?
S3N4
What type of reaction is shown?
3 HBr + Al(OH)3 -> AlBr3 + 3 H2O
Double displacement
Balance the following chemical equation:
__ Al2(SO4)3 + __ BaCl2 -> __ BaSO4 + __ AlCl3
1, 3, 3, 2
Fluorine, chlorine, bromine, and iodine belong to which group/familiy?
Halogens
An ionic compound containing hydrogen as the cation forms what type of compound?
An acid
What is the name of NH4C2H3O2?
Ammonium acetate
What type of reaction is shown?
2 H2O -> 2 H2 + O2
Decomposition
Balance the following chemical equation:
__ C4H12 + __ O2 -> __ CO2 + __ H2O
1, 7, 4, 6