Count Von Count
I Like How You React
It Is All About Balance
What Just Happened?
Everyone Likes Substitutes!
100
When one or more substances are changed into new substances is called this.
What is a chemical reaction?
100
In chemical reactions the " --> " points to this part of the reaction.
What is product?
100
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 /Matter?
100
This type of change causes a change in phase.
What is physical change?
100
This is the ratio of acetic acid molecules to sodium bicarbonate molecules.
What is a 1 to 1 ratio?
200
What we call a chemical equation when there is the same number and type of atoms on either side of a reaction arrow.
What is balanced?
200
When heat is produced, light is emitted, or a precipitate is formed this is an indication of this change.
What is a chemical reaction/change?
200
These are used to help balance chemical equations.
What are coefficients?
200
This type of change is reversible.
What is a physical change?
200
This is the ratio between methane and oxygen in the reactants:
What is one methane molecule for two oxygen molecules?
300
The number of atoms in C6H12O6
What is 24?
300
In the chemical reaction, Mg + O -> MgO, the compound MgO is located on this side of the equation.
What is the product side?
300
The number of atoms in the reactants: Fe + O2 --> Fe2O3
What is 3?
300
Name the type of reaction: When baking a cake, heat must be added to the batter.
What is an endothermic reaction?
300
This is the amount of sodium bicarbonate I would need if I have two cups of acetic acid.
What is two cups?
400
The number of atoms in 3FeO6.
What is 21?
400
This is the difference between endothermic and exothermic reactions.
Endothermic reactions absorb heat, exothermic reactions release heat.
400
The number of Li and Br atoms to balance the product side: 2Li + Br2 --> LiBr
What is two Li atoms and two Br atoms, or two moleculers of LiBr?
400
Name the type of reaction: When a campfire is lit, it releases heat.
What is an exothermic reaction?
400
This would be the amount of oxygen molecules I would need if I have 7 cups of methane.
What is 14 cups of oxygen molecules?
500
The total atoms in this chemical equation:
2C2H6 + 7O2 --> 4CO2 + 6H2O
What is 30 atoms on the reactant side, and 30 atoms on the product side = 60 atoms total?
500
These 3 things are essential in writing a chemical equation.
What are reactants, a reaction arrow, and products?
500
These changes are needed for this reaction in order for matter to be conserved: CH4 + O2 --> CO2 + H2O
Two more O atoms, or one O2 molecule must be added to the reactant side, and two more H atoms and and O atom, or one more H2O molecule must be added to the product side.
500
This is the type of evidence or change can either be classified as chemical or physical.
What is a color change?
500
This is the reason that when using subsitutions in a recipe, sometimes the amount of the substitution is different than the original reactant.
Subsitutions are different molecules with different amounts of atoms. Therefore, they will react slightly different and require a slightly different amount than the original reactant in order to keep the mass conserved in the reactions (in order to balance out the atoms in the reaction).