Flashcards in Ap Chem. Ch.1 Deck (20)
Matter with fixed composition and distinct proportion (definite composition).
What is the opposite of compound formation?
A compound always consists of the same combination of elements (ex: water is always 11% H and 89% O)
Law of Constant (definite) proportions.
Combination of two or more pure substances (in definite or variable composition).
Do not have uniform composition, properties and appearance. (example:sand)
Uniform throughout (example: air)
Measured without changing the identity of the substance.
(example: color, density, odor, melting point, solubility etc.)
Properties that describe how substances react or change to form different substances.
( example hydrogen burns in oxygen).
*do not depend on amount of substance present (example: temperature, melting point ect.)
*They give an idea of the composition of a substance.
*Properties that Depend on quantity of substance present (example mass, volume etc.)
*They give an indication of the quantity of a substance present
Substance changes physical appearance without altering its identity (example: changes of state).
Senses transform into chemically different substances (example: Identity changes, decomposition of water, explosion of nitrogen triiodide)
Type of technique to separate mixtures in which you remove solid from liquid
Type of technique to separate mixtures in which you boil one or more components of the Mixture.
Type of technique to separate mixtures in which you exploit solubility of components
Distance traveled per unit time
Equation for density
How well measured quantities agree with each other
How well measured quantities agree with the "true value".