When the number of atoms are equal on both sides of the equation, this law has been fulfilled.
What is the Law of Conservation of Mass
The bonds of reactant compounds break, atoms
rearrange, and new bonds form among those
rearranged atoms to form products.
What is a chemical reaction/change?
Classify this reaction:
Na2S + Cd(NO3)2⟶ CdS + 2NaNO3
What is a double displacement(replacement) reaction?
The symbol (s) stands for in a chemical equation.
What is a solid?
A reaction type in which one reactant breaks down into two or more products.
What is a decomposition reaction?
In the chemical reaction, 2Mg + O2 -> 2MgO, the compound MgO is located on this side of the equation.
What is the product side?
A balanced chemical reaction always produces...
a chemical change!
Oxygen gas must be a reactant in this type of reaction, and __________always released.
What is a combustion reaction? What is energy?
In the following chemical equation, what other product can we predict should form?
CaCl2 + LiOH ⟶ Ca(OH)2 +_________
What is a LiCl?
The reactant(s) for this balanced chemical equation:
3Mg + N2⟶ Mg3N2.
What are Mg and N2?
Is this chemical equation balanced?
2Li + Br2 --> 2LiBr
What is Yes!
Classify this balanced chemical reaction:
2Na + 2H2O --> 2NaOH + H2
What is a single replacement(displacement) reaction?
Name 3 things are used in writing a balanced chemical equation.
What are reactants, an arrow, coefficients, physical state, and products?
How many oxygen atoms are on each side of this combustion reaction?
2C2H6 + 7O2⟶ 4CO2 + 6H2O
What is 14?
Explain why the following chemical equation
does not proceed to form a product:
LiCl + Au ⟶no reaction
What is the activity series demonstrating that gold has a lower activity than lithium and cannot
replace it?
Double replacement reactions are
often defined by three characteristics.
What is aqueous reactants, and the formation of a gas or precipitate?