Show:
Moles
Covalent Compounds
Chem Equations and Reactions
Stoichiometry
Causes of Change
100
A mole has exactly 12 grams of this element.
What is carbon-12?
100
A bond formed when atoms share one or more pairs of electrons
What is a covalent bond?
100
Multiplies the number of atoms of each elements in the formula that follows.
What is a coefficient?
100
Convert volume to mass with the _____ of the substance as the conversion factor.
What is density?
100
energy is measured in this unit.
What are joules?
200
A chemical formula that shows the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio.
What is the empirical formula?
200
Bond length is determined by ____.
What is potential energy?
200
C3H8+5O2 -> 3CO2+4H2O is a ___ reaction.
What is a combustion reaction?
200
the mass NH3 can be made from 2332g H2 and excess N2
What is 6867g NH3?
200
the equation that shows the relationship between heat and molar heat capacity.
What is q=nCAT
300
Gives the relative contribution of each element to the total mass of one molecule of formula unit.
What is percentage composition?
300
Bonding causes a decrease in ___.
What is energy?
300
Magnesium and oxygen form this compound when they react.
What is magnesium oxide?
300
in the equation Zn+2HCl->ZnCl2+H2, Zn is the ___ reactant.
What is limiting reactant?
300
(molar mass)(specific heat)=
What is molar heat capacity?
400
n(empirical formula)
What is the molecuar formula?
400
The highest value in any element.
What is 4.0?
400
this compound only has one reactant.
What is a binary compound?
400
the measured amount of a product of a reaction.
What is an actual yield?
400
Gibbs energy is represented by the symbol _.
What is G?
500
The empirical formula of ammonium nitrite.
What is NH20?
500
This can be used to predict the property of a bond.
What are electonegativity differences?
500
ions that do not react.
What are spectator ions?
500
calculate the amount of O3 that is produced from 3.50 g of NO2.
What is 3.65g O3?
500
reactions with negative G values often release energy and increase ___.
What is disorder?