Moles
Chemical Reactions
Reagents & Yields
Units & Values
Formulas & Ideas
100
This number is the amount of a substance that contains 6.02 x 10^23 representative particles of that same substance.
What is a mole?
100
This is a change where the reactant or reactants change into one or more products.
What is a chemical reaction?
100
This is any reactant that remains after the limiting reagent is used up in a chemical reaction.
What is the excess reagent?
100
The smallest part of any element that will keep the same identity and stay the same.
What is an atom?
100
By adding together the relative atomic mass values of all the atoms in a formula, this can be calculated.
What is formula mass?
200
This is the number of representative particles contained in one mole of a certain substance that equals 6.02 x 10^23.
What is Avogardo's number?
200
At the start of a reaction, this substance is present.
What is a reactant?
200
This is any reactant that is used up first in a chemical reaction.
What is the limiting reagent?
200
A neutral group of atoms covalently bonded together.
What is a molecule?
200
This is the idea that equal volumes of gases at the same temperature and pressure contain equal numbers of particles.
What is Avogardo's hypothesis?
300
This term is used to refer to the mass of one mole of any given substance.
What is molar mass?
300
In a chemical reaction, this is the new substance that is produced.
What is a product?
300
When a reaction is carried out in the laboratory, this is the amount of product that forms.
What is the actual yield?
300
The volume of gases are typically measured under these conditions of 0 degrees celsius and 101.3 kilopascal.
What is standard temperature and pressure (STP)?
300
The percent by mass of each element in a compound.
What is percent composition?
400
This is the amount of space that one mole of a gas at STP will take up.
What is molar volume?
400
In this kind of compound, there is a specific number of water molecules bound to each formula unit.
What is a hydrate?
400
This represents the maximum amount of a product that could be formed from a given amount of reactant.
What is the theoretical yield?
400
Units of mass equal to one-twelfth the mass of a carbon-12 atom.
What are atomic mass units?
400
This formula of a compound shows the kinds and numbers of atoms present in a molecule of a compound.
What is the molecular formula?
500
This is a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles.
What is the mole ratio?
500
By lowering the activation energy required, this substance increases the rate and speed of a chemical reaction
What is a catalyst?
500
This is expressed as a percentage and it is the ratio of the actual yield to the theoretical yield.
What is the percent yield?
500
Usually atoms and molecules, these are the smallest unit into which a substance can be broken down without its composition changing.
What are representative particles?
500
This is the formula with the lowest whole number ratio of elements in a compound.
What is the empirical formula?
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