**Classify the following substances as pure substances or mixtures (put an X ) AND explain your reasoning.
Substance
Sodium
Water
Soil
Cup of Coffee
Oxygen
70% isopropyl alcohol
Carbon dioxide
Cake batter
Air
Chicken noodle soup
Iron
Salt water
Chocolate chip ice
cream
Nitrogen
Raw Egg
Blood
Table salt
Nail polish
Milk
Soda pop
Pure
Substance
x
x
Mixture
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Reason why…
Sodium is an element (Na)
Water is a compound (H2O)
Soil is an assortment of sand, clay, etc
Coffee is water plus filtered coffee grounds
Oxygen is an element (O)
Water plus the alcohol (C3H8O
This is a compound ( CO2 )
Batter has many ingredients
Air has dust, sand, smoke, ash, etc
Soup is noodles, chicken and broth
Iron is an element (Fe)
Two compounds-NaCl plus H2O
Has many ingredients
Nitrogen is an element (N)
Lots of different type cells, at least 2
Lots of different cells, elements, etc
Salt is a compound (NaCl)
A combination of lacquers, polymers
Milk is a mix of water, fat, protein, vitamins and calcium
It is a mix of compounds: water, Sodium carbonate,
Na2CO3, syrups
E
D
C
F
B
A