Chemical reactions Flashcards
Activation energy
The minimum amount of energy required for a reaction to occur.
Catalyst
Substances that speed up the reaction by providing an alternate pathway, decreasing the activation energy without being used up.
What must happen for a reaction to occur?
Particles must collide at the correct orientation with sufficient energy to react.
What are the two types of ions?
Anions, and Cations.
Ions
Charged particles formed by losing or gaining electrons.
Cations
Positively charged ions formed by losing electrons.
Anions
Negatively charged ions formed by gaining electrons.
Atom
The smallest particle that cannot be further divided by using chemical methods.
Element
Consists of one type of atom.
Compound
Two or more different elements chemically bonded together.
