what number is in front of Oxygen?
C3H8 + _O2 --> 4H2O + 3CO2
what is 5
100
In what group are alkali metals located?
what is group one
100
The word Atom comes from the Greek word "atomos" meaning what?
What is invisible?
100
What are the unit for atomic radius?
what is pictometer
100
What is produced by sharing of a pair of electrons between two atoms?
what is Covalent Bond
200
What is undergoing reduction?
CU(s) + 2Ag+(aq) -> Cu2+(aq) + 2Ag(s)
What is Cu
200
what is the amount of energy needed to totally remove an electron from an atom?
what is ionization energy
200
In 1897 he made an atomic model name after Plum Pudding
Who is Joseph John Thompson?
200
What is Atomic radius?
What is the distance from the center of the the nucleus to the last shell
200
What is formed from combining of 2 different elements
what is Binary Compounds
300
What Type of chemical reaction is this?
3NaBr + H3PO4 --> Na3PO4 +3HBr
what Double Displacement
300
What is the lowest energy sub-level that an electron of an atom can occupy?
what is ground states
300
Protons and electrons and nuetrons are what type of particles?
What is subatomic particles
300
What groups are most the metals located in the Periodic table?
What is groups 3-12
300
The name of Binary Compounds always end with what suffix?
what is "ide"
400
An unknown compound is found to contain 40.0% carbon, 6.7% hydrogen and 53.3% oxygen with a molecular mass of 60.0 g/mol. What is the molecular formula of the unknown compound?
What is C2H4O2
400
What is the change of state from solid to gas, without the liquid state?
what is sublimation
400
This Scientist Discover the nucleus and Proved it with the gold foil experiment.
what is Rutherfold?
400
what is nobel gases
This group of elements are completelly stabalized.
400
when naming covalent bonds, the Prefixes stand for what?
what is the number of atoms in the bond
500
If 3.00 moles of H20 are produced, how many grams of oxygen must be consumed?
2H2 + O2 --> 2H2O
Whatis 50g of oxygen
500
What is a chemical change?
Takes place on the molecular level, it produces a new substance.
500
What is the theory the atoms are fundamental building blocks of matter reemerged in the early 19th Century, Championed by John Dalton?
what is Daltons Atomic Theory?
500
This rule states that atoms tend to gain or lose electrons during chemical reactions so that the atoms have an outer shell configuration of eight electrons