Rection Rate Basics
This term describes how quickly reactants turn into products.
What is reaction rate?
Increasing this factor speeds up reactions because particles move faster.
What is temperature?
According to collision theory, particles must do this for any reaction to occur.
What is collide?
This is the starting substance in a chemical reaction.
What is a reactant?
This is the force that holds two atoms together.
What is a chemical bond?
Reaction rate can be measured by the disappearance of reactants or the appearance of these.
What are products?
Breaking a solid reactant into smaller pieces increases reaction rate because it increases this.
What is surface area?
A collision must have enough energy to overcome this barrier.
What is activation energy?
Bubbles, color change, and temperature change are all signs that this has occurred.
What is a chemical reaction?
This type of bond forms when electrons are transferred from one atom to another.
What is an ionic bond?
Reaction rates are higher when particles do this more frequently.
What is collide?
This factor increases reaction rate by adding more particles into a given space.
What is concentration?
Collisions must not only be energetic—they must also have this property, meaning the particles hit the right way.
What is proper orientation?
This law states that matter cannot be created or destroyed in a chemical reaction.
What is the Law of Conservation of Mass?
This type of bond occurs when atoms share electrons.
What is a covalent bond?
This graph shows how concentration changes over time and can be used to determine reaction rate.
What is a concentration–time graph?
This type of substance speeds up a reaction without being used up.
What is a catalyst?
Raising temperature increases reaction rate mainly because it increases this part of the collision theory trio.
What is collision energy?
Reactions that release heat are classified as this type.
What is exothermic?
The unequal sharing of electrons in a covalent bond creates this kind of molecule.
What is a polar molecule?
This mathematical expression relates how the rate depends on reactant concentrations.
What is the rate law?
Increasing pressure speeds up reactions only when reactants are in this phase.
What is the gas phase?
Only a small percentage of collisions have enough energy to lead to a reaction. This fraction is called the fraction of collisions that are ____.
What are effective collisions?
In this type of reaction, a compound breaks down into two or more simpler substances.
What is a decomposition reaction?
The ability of an atom to attract shared electrons in a bond is known as this property.
What is electronegativity?