Elements, compounds, molecules
An____________ is a pure substance containing only one kind of atom
Element!!
things that are not examples of matter?
light, sound, electricity
flammability is a
_____ change
chemical change
what is something that describes matter?
propertys
solid to liquid
melting
A _______ is a pure substance containing two or more kinds of elements.
compound
something that has mass and volume is
______
MATTER!!!
malleability is a ______ change
physical change!!
the way a substance reacts when it changes
chemical properties
gas to solid
deposition
diamond is a ______
element!!
is oil with water, immiscible or miscible ????
Immiscible!!
a chemical reaction that also absorbs energy is a _______
endothermic reaction!!!
transparency is a _______ property
physical property
what is it called when something changes from solid to liquid to gas and back?
phase changes
a compound is always monogenous (true or false)
True!!
Nacl, H2O2, and NaHCO3 are examples of what?
compound
a mixture creates gas it is having a_______
chemical change
ability to burn
flammability
mass can not be created or destroyed
law of conservation of mass.
H20 CaO, Cl2, and H2 are all examples of?
molecules
separates matter based on the size of their particles
filtration
if most changes can be reversed it is a _________
physical change!!
conductivity is a chemical property (true or false)
False
after a chemical or physical change energy is always the same
law of conservation of energy