Physical & Chemical Properties + Changes
If your burn wood is that a chemical or physical change?
Chemical
is Oxygen and element or a compound?
element
what are the horizontal row on a periodic table called?
peridos
is you mix tomato into a salad is it a chemical or a physical change?
Physical
is H2O a element or compound
compound
how many vertical columns are in a periodic table
18
if you shred paper is that a chemical or physical change?
physical
how many elements are in FeO?
2
an chemical symbol is for
the element
if a puddle of water evaporates is isn chemical or physical?
physical
do we come in contact with elements or compounds more?
compounds
Elements in the same group or
family
if you burn toast is it chemical or physical
chemical
how many elements are in NaHCO?
4
who created the first periodic table of elements?
DMITRI MENDELEEV