College Chemistry Test 1 | Study Guide & Practice Questions

College Chemistry Test 1 | Study Guide &
Practice Questions




Chemistry - ---✔✔✔ANSWER----science that describes matter-its
properties, the changes it undergoes, and the energy changes that accompany
those processes



Chemistry - ---✔✔✔ANSWER----what touches every aspect of our lives,
our culture, and our environment?



Matter - ---✔✔✔ANSWER----anything that has mass and occupies space



Energy - ---✔✔✔ANSWER----the capacity to do work or transfer heat



Scientific natural Law - ---✔✔✔ANSWER----a general statement based on
the observed behavior of matter to which no exceptions are known

, Law of Conservation of Mass - ---✔✔✔ANSWER----there is no observable
change in the quantity of matter during a chemical reaction or during a physical
change



Law of Conservation of Energy - ---✔✔✔ANSWER----energy cannot be
created or destroyed in a chemical reaction or in a physical change; it can only be
converted from one form to another



Chemical properties - ---✔✔✔ANSWER----chemical changes; a new
substance is formed; change in composition; Ex: rusting or oxidation, chemical
reactions



Physical properties - ---✔✔✔ANSWER----physical changes(no change in
chemical composition); Ex: changes of state, density, color, solubility, melting and
boiling point, reversible process



Extensive properties - ---✔✔✔ANSWER----depend on quantity(volume
and mass)



Intensive properties - ---✔✔✔ANSWER----do not depend on quantity(
color, melting point)



Chemical and Physical changes - ---✔✔✔ANSWER----Which changes
involve energy being released and absorbed?