Part 14 - Chemical Reactions & Part 15 - Stoichiometry

Combination / Synthesis / Addition reaction

2 or more substances reacting to form one product

decomposition / reverse combination

taking something larger and breaking it down into something smaller

single replacement / displacement

one element trades places with another element

double replacement / metathesis

two ionic compounds that exchange cations and anions to form a new compound

combustion (burning)

• reaction that releases a lot of heat energy

• usually releases CO₂ + H₂O

carbon dioxide (CO₂)

a complete combustion produces

carbon monoxide (CO)

an incomplete combustion produces

stoichiometry

area of study that examines the quantities of substances consumed and produced in chemical reactions

• Greek

• element

• measure

stoichiometry came from the ___ word, stoicheion “____” and metron “_____”

mole (mol)

• SI measure of quantity of a chemical entity

• amount of a substance that contains as many particles as there are atoms in 12 g of pure carbon-12

• represents a number

• constant

6.022 × 10²³

Avogadro’s number; 1 mole = ____

Avogadro’s number

defined as the number of particles (molecules, atoms, compounds) per mole of a substance

formula units

• empirical formula for ionic compound

• lowest whole number ration of ions in an ionic compound

molar mass

mass of a given substance (chemical element / compound) divided by its amount of substance in g/mol