Chemical Formulas
Naming Compounds
Moles
Balancing and Identifying
Equilibrium
100
The term given to the electrons involved in bonding.
What are valence electrons?
100
CaCl2
What is calcium chloride?
100
The number of atoms in one mole.
What is Avogadro's number (6.02 x 10^23)?
100
Matter cannot be created nor destroyed.
What is the Law of Conservation of Matter (Mass)?
100
This term relates to the fact the reaction continues to move from reactant to product and back again.
What is dynamic?
200
The term given to the charges of individual elements. This relates to how they bond.
What are oxidation numbers?
200
N3O5
What is trinitrogen pentaoxide?
200
The sum of all of the masses in a compound.
What is molar mass?
200
These numbers do not change when balancing an equation.
What are subscripts?
200
Reactions at equilibrium can go from product back to reactant. This means the reaction is _____.
What is reversible?
300
The ion that should be written first in a chemical formula.
What is a cation?
300
OH
What is hydroxide?
300
The formula for calculating the number of atoms in a substance.
What is moles x Avogadro's number?
300
(aq)
What is aqueous solution?
300
One of the aspects which can affect chemical equilibrium, this affects the arrangement of gas particles in the reaction.
What is pressure?
400
This group of elements can exist in several phases, so the phase must be included when recording the formula.
What are halogens?
400
CaCO3
What is calcium carbonate?
400
This calculation allows a scientist to figure out the proportions of chemicals in a substance.
What is percent composition?
400
This type of reaction can only occur if an aqueous solution is involved. One element swap places with another.
What is single replacement?
400
The two ways that reactions are described based on heat exchange.
What is endothermic and exothermic?
500
A graphical representation of a chemical formula and the valence electrons.
What is a Lewis Dot Structure?
500
NH4
What is methane?
500
This formula shows the relative amounts of individual elements in a substance?
What is empirical formula?
500
This type of reaction has CO2 and H2O as products.
What is a combustion reaction?
500
If the concentration of reactants is increased, this is known as a ______ reaction.
What is a forward reaction?
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