Definitions
What are the "ingredients" you start with in a chemical reaction, found on the left side of the arrow.
What are Reactants?
Two elements combine to make one single product (A + B → AB).
What is Synthesis?
The famous law stating that atoms cannot be created or destroyed, only rearranged.
What is the Law of Conservation of Mass?
This type of reaction releases energy, usually making the surroundings feel hot.
What is Exothermic?
When two liquids mix and a solid "powder" suddenly appears at the bottom.
What is a Precipitate?
What is Activation Energy?
One complex reactant breaks down into two or more simpler products (AB → A + B).
What is Decomposition?
The ONLY numbers you are allowed to change when balancing an equation.
What are Coefficients?
This type of reaction sucks in energy, usually making the surroundings feel cold.
What is Endothermic?
Seeing these rise to the surface is a sign that a gas has been produced.
What is something that speeds up reaction without being consumed?
What is a catalyst?
One element "kicks out" another element in a compound to take its place.
What is Single Replacement?
True or False: You can change the subscripts (tiny numbers) to make the math work.
What is False?
A campfire is a classic example of this type of energy-releasing reaction.
What is Exothermic?
If a silver spoon turns black or a blue liquid turns red, you are seeing a change in _____.
What is Color?
The finished substance created by a reaction, found on the right side of the arrow.
What are Products?
Two compounds "switch partners" to form two brand-new compounds.
What is Double Replacement?
To find the total number of atoms, you must ________ the coefficient by the subscript.
What is multiply?
An instant cold pack used for sports injuries is an example of this.
What is Endothermic?
A sudden "rotten egg" or "sweet" scent appearing during an experiment.
What is Odor?
What is Aqueous?
A reaction that involves oxygen and fuel to produce heat, light, and CO_2.
What is Combustion?
If there is no number written in front of a chemical symbol, the coefficient is assumed to be this.
What is One?
In an exothermic reaction, the energy of the products is _____ than the energy of the reactants.
What is lower?
Seeing a bright flash of light or a spark is evidence of this type of energy release.
What is light/heat?