Chemistry Final Flashcards
Precipitate
An insoluble solid that emerges from a liquid solution
Reactant
Substances that react
Product
Substances that are made
Coefficient
Numbers in front of each substance in an equation
Endothermic
When a process absorbs energy
Exothermic
When a process gives off energy
Soluble
When something can dissolve
Insoluble
When something doesn’t dissolve
Mole ratio
The ratio between the amounts in moles of two compounds involved in a chemical reaction
The mole ratio may be determined by examining the coefficients in front of formulas in a balanced chemical equation
Limiting reactant
If you do a chemical reaction and one of the chemicals gets used up before the other one, the one that got used up is called the “limiting reagent” because it limited the amount of product that could be formed. The other one is called the excess reagent.
Theoretical yield
The amount of a product which should be made in a chemical reaction if everything goes perfectly
Percent yield
The actual yield divided by the theoretical yield, times 100
Atomic size
The atomic radius is a measure of the size of its atoms from the center of the nucleus to the boundary of the surrounding cloud of electrons
Solubility
A measurement of how much of a solute can dissolve in a liquid
Stoichiometry
The study of the quantitative relationships or ratios between two or more substances undergoing a physical change or chemical change (chemical reaction)
