Periodic Table
# that combines the protons and neutrons of an atom
mass number
dirt
MIXTURE
Zn + Cl2 ---- ZnCl2
Synthesis
Ca+2 Cl-1
CaCl2
taste sour and react with metals and carbonates
an acid
What tells us the number of protons in an element?
atomic number
Cesium
ELEMENT
2Al2O3 ------- 4Al + 3O2
decomposition
C+4 O-2
CO2
soaps and cleaners
are bases
How many neutrons does Aluminum have?
14 neutrons
lemonade
SOLUTION
What is a physical change you could do with vinegar?
add food coloring, freeze it, boil it...etc.
Cs+1 SO4-2
Cs2SO4
bitter tasting and does not react with metals or carbonates
a base
How many electrons does Bromine have?
35 electrons
plastic
COMPOUND
PbNO3 + KI ------PbI2 + KNO3
double replacement
B+3 SO4-2
B2(SO4)3
On the pH scale, acids are ______ and bases are ______.
acids: 0-6
bases: 8-14
sharing electrons to become "happy atoms"
covalent bond
Acetone (fingernail polish remover)
COMPOUND
What is a chemical property of vinegar?
It reacts with _________. (baking soda or magnesium ribbon)
Al+3 SO4-2
Al2(SO4)3
Acid + Base --------- ?
neutralization