Symbols
Hg
Mercury
75
Rhenium
What elements and how many?
Water
H2O
2 Hydrogen and 1 Oxygen
matter
has mass and takes up space
Example of a base, acid, and neutral
soap, vinegar, water
Pm
promethium
16
Sulfur
FeCO2
1 Iron
1 Carbon
2 Oxygen
compound
2 or more different atoms that come together
Example of a mixture
pizza
taco
etc.
Rb
Rubidium
95
Americium
Carbon Dioxide
CO2
1 Carbon
2 Oxygen
mixture
2 or more substances mixed together-- but do not change chemically
What is the highest atomic number on the current periodic table of elements?
118
Na
Sodium
57
Lanthanum
Glucose
C6H12O6
6 carbon
12 hydrogen
6 oxygen
law of conservation of matter
matter can be neither created nor destroyed, only changed in form
4 states of matter and give examples
solid, liquid, gas, plasma
examples will vary
Sn
Tin
87
Francium
Cu8Tl4TaBO
8 copper
4 thallium
1 tantalum
1 boron
1 oxygen
Physical vs chemical change
P= change in size, shape, state, but not chemistry
C= atoms and molecules react to form new molecules
name three physical and three chemical changes
answers will vary