Vocab
An atom or group of atoms that has become charged by gaining or losing one or more electrons.
What is an ion?
A strong chemical bond that is formed by the attraction between two ions or opposite charges.
What is ionic bonding?
A chemical bond between two atoms, in which each atom shares an electron.
What is a covalent bond?
A chemical bond where positive metal ions form a lattice structure with freely moving electrons between them.
What is a metallic bond?
An interaction between the atoms of two substances where the atoms rearrange to form two new molecules.
What is a chemical reaction?
A new substance produced in a chemical reaction.
The substance present at the beginning of a chemical reaction.
What is the reactant?
The tendency of a substance to react with other substances.
What is reactivity?
What is concentration?
The point of which the rate of the forward reaction is equal to the rate of the backward reaction.
What is equilibrium?
The minimum amount of energy a reaction needs to start.
What is activation energy?
A substance which speeds up a chemical reaction without being changed by the reaction.
What is a catalyst?
Occurs when an atom loses electrons in a reaction, or when a substance loses a hydrogen or gains an oxygen atom in a chemical reaction.
What is oxidation?
Occurs when an atom gains electrons in a reaction, or when a substance gains a hydrogen or loses an oxygen atom in chemical reactions.
What is reduction?
6.02 x 10(23) (This tells us the number of particles per mole)
What is Avogadro's Number?
A reaction that primarily involves the transfer of electrons between two substances.
In a chemical reaction, the mass of the products is equal to the mass of the reactants.
What is Law of Conservation of Mass.
If a change is made to a reaction in equilibrium, the reaction will adjust itself to counter the effects of that change.
What is Le Chatelier's Principle?
Explains why a change in the condition under which a reaction occurs can affect the rate of the reaction, in other words, if more ___________ occur, the faster the rate of reaction.
What is collision?
Temperature, concentration, and pressure can all affect the _____________________of a reaction.
What is chemical equilibrium?
A chemical reaction that takes in heat.
What is an Endothermic Reaction?
A chemical reaction that gives off heat.
What is a exothermic reaction?
The SI unit for the amount of a substance.
What is a mole?
A reaction in which the products can never be turned back into the reactants.
What is irreversible reaction?
A reaction in which. under the right conditions, the products can be turned back into the reactants.
What is reversible reaction?