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Naming Compounds
Nuclear Reactions
Stoichiometry
100
Atoms with different mass numbers but identical atomic numbers
What is Isotopes
100
Name the differences between nuclear and chemical reactions
What is: 1) A nuclear reaction changes an atom’s nucleus. A chemical reaction only changes the distribution of electrons. 2) Different isotopes of an elements have essentially the same behavior in chemical reactions. 3)The rate of a nuclear reaction is unaffected by temperature, pressure, or catalysts. 4)A nuclear reaction of an atom is essentially the same, regardless of whether the atom is uncombined or in a chemical compound 5) The energy change accompanying a nuclear reaction is far greater than that accompanying a chemical reaction.
100
Systematic name for K2O
What is potassium oxide
100
The balanced nuclear equation for alpha emission from curium-242
What is curium-242------helium-4+plutonium-238
100
Propane, C3H8, is a colorless gas used for heating and cooking. Write a balanced equation for the combustion reaction of propane with oxygen to yield carbon dioxide and water.
What is C3H8 + 5O2= 3CO2 +4H2O
200
Describe the difference between chemical and physical properties
What is physical properties do not change the chemical makeup, chemical properties do
200
Rubidium is a soft, silvery-white metal that has two common isotopes, 85Rb and 87Rb. If the abundance of 85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average atomic mass of rubidium?
What is 85.556 amu
200
Systematic name for CuO
What is copper (II) oxide
200
what particle is produced by decay of thorium-214 to radium-210
What is alpha
200
How many grams are in 0.0626 mol of NaHCO3?
What is 5.26 g NaHCO3
300
This law had many components, which include; elements are made up of tiny particles called atoms, Chemical reactions only rearrange the way that atoms are combined; the atoms themselves don’t change, etc.
What is Dalton's Atomic Theory and Law of Multiple Proportions
300
Magnesium consists of three naturally occurring isotopes. The percent abundance of   these isotopes is as follows: 24Mg (78.70%), 25Mg (10.13%), and26Mg (11.7%). The average atomic mass of the three isotopes is 24.3050 amu. If the atomic mass of 25Mg is 24.985 amu, and 26Mg is 25.98259 amu, calculate the actual atomic mass of 24Mg.
What is 23.985 amu
300
The formula for Vanadium (III) chloride
What is VCl3
300
Nuclear equation for beta emission from ruthenium-106
What is 0,-1 e + 106,45-Rh
300
How many grams of NaOH are needed to react with 25.0 g of Cl2? 2NaOH + Cl2= NaOCl + NaCl+ H20
What is 28.2 g of NaOH
400
Define Avogadro's Number and Molar Mass
Avogadro's Number is one mole of any substance contains 6.022 x 10^23 formula units. Molar Mass is the mass in grams of one mole of any element. It is numerically equivalent to its atomic mass.
400
The difference between a mixture and a compound
What is a mixture is a blend of two or more substances without chemically changing the individual substances themselves. A compound is a pure substance form to create a new material.
400
The systematic name for P4O7
What is tetraphosphorus trichloride
400
Nuclear equation for electron capture by polonium-204
What is 204-Po+0,-1 e=204,83-Bi
400
How many grams of AuCl3 can be made from 100 g of chlorine in this reaction: 2Au+3Cl2=2AuCl3
What is 285 g of AuCl3
500
The term for protons and neutrons
What is nucleons
500
The chemical formula for phosphate
What is PO4^3-
500
The systematic name for Pb(CH3CO2)4
What is lead(IV) acetate
500
Positron emission xenon-118
What is 118-Xe= 0,1e + 118,53-I
500
Suppose we knew that there were 8.170 x 10^20 atoms of O in an unknown sample of KMnO4. How many grams would the unknown sample weigh
What is 0.0536 g of KMnO4