química Flashcards
(39 cards)
intensive matter property:
independent of amount
extensive matter property:
depends on amount
chemical matter property:
when a substance goes through a chemical reaction and transforms
physical matter property:
without changing chemical identity of a substance
in what does matter clasifícate in?
mixtures and pure substances
mixtures:
homogeneous and heterogeneous
pure substances:
elements and compounds
what’s an element?
some type of atoms but different from others
what’s a compound?
2 or more elements, different type of atoms
what’s a mixture?
combination of 2 or more compounds and elements
what are the states of matter?
solid, liquid, gas
what state of matter can be compressed?
gas
at states of matter flow?
liquid, gas
how does solid takes shape?
if you apply force
how does liquid take shape?
the bottom of the container
how does gas take shape?
takes the shape of the container
energy:
it cannot be created or eliminated, just transformed
energy of motion
kinetic energy
stored energy
potential energy
produced by chemical reactions
chemical energy
derived from an electricity circuit
electric energy
produced by temperature
thermal energy
who discovered the neutron?
Chadwick
electrons spin around the nucleus forming ellipses?
true/false
true
