Subatomic Particles
+1, 0, -1
The prefixes for the numbers 6-10
6-Hexa
7-Hepta
8-Octa
9-Nona
10-Deca
What type of reaction is this?
CH + O2 —> CO2 + H2O
Combustion Reaction
What is Avogadro’s Number?
6.022*10^23
Which group on the periodic table has a +2 charge?
Group 2 (Alkaline Earth Metals)
The difference between a cation and an anion
Cations have a positive charge, anions have a negative charge
DiSulfur DiChloride
Balance the following equation:
Al + O2 —> Al2O3
4Al + 3O2 —> 2Al2O3
How do you determine the molar mass of a compound
Add all of the atomic masses of all elements present in the compound.
Is CaCl2 Ionic or Molecular (Covalent)
Ionic
How many neutrons are in the isotope Magnesium-28
16 neutrons
Write the formula for Lead(II)Oxide
PbO
Balance the following equation:
Au2S3 + H2 —> Au + H2S
Au2S3 + 3H2 —> 2Au + 3H2S
How many grams are in 2.4 moles of Sulfur
76.96 g
Why is Hydrogen Chloride a molecular (covalent) compound?
It is made up of only nonmetals
How many protons, neutrons, and electrons are in the isotope Nitrogen-15 with a 3- charge
7 protons, 8 neutrons, 10 electrons
What is the name of the following acids: HCl, HNO3, HClO2
Hydrochloric acid, nitric acid, chlorous acid
Name the three types of chemical reactions
Combination (Synthesis)
Decomposition
Combustion
What is the percent composition of Hydrogen in ammonium (NH4)
True or False: The charge on the most stable ion of F is 3-
False, Flourine has a 1- charge.
How many protons,neutrons,and electrons are in the cation 2044Ca with a 2+ charge?
20 protons, 24 neutrons, 18 electrons
Name the following Polyatomic Ions: NO, NO2, NO3, NO4
Hyponitrite, nitrite, nitrate, pernitrate
What is the coefficient for KOH in the following reaction:
KOH + H3PO4 —> K3PO4 + H2O
3
How many grams of CaO are required to react with 0.45 grams of P4O10 based on the reaction
6CaO + P4O10 —> 2Ca3(PO4)2
Name the Groups of the Periodic Table:
1A, 2A, 6,7,8
Alkali Metals, Alkaline Earth Metals, Chalcogens, Halogens, Noble Gases