Two properties of matter are
What are the units we use to measure mass?
kilograms or grams
What is the smallest particle into which an element can be divided and still be the same substance?
atom
H20 is ______________
compound
Be is ______________
atom/element
02 is a ___________________
molecule
How is density calculated?
mass/ volume
What units do we use to measure volume?
mL or L
What are three subatomic particles of an atom?
proton, neutron and electron
NaCl is a __________
compound
What charge does an electron have?
negative
What is matter made of?
molecules
Which of the following features of the sulfur crystals is evidence that it is composed of matter? color volume visible and mass
color volume and mass
H2 is an
atom
What charge does a proton have?
positive