Substances
1. Acetic acid
+ sodium
bicarbonate
Relevant
Chemical
Formulas
Physical Properties of
substances
Changes observed
Evidence for Chemical change
C2H4O2 +
NaHCO3
Clear liquid, smells like
vinegar
Solid, white, powder
Bubbles, got cold
Temp change
Gas produced
CaCl2 + H2O
Solid, white granules
Clear, odorless, liquid
Temperature increased (got
hot), solid dissolved
Temp change
NaClO
Colored liquid
Yellowish, clear fluid
Colored changed to lighter
color, then clear
Color change
Na2CO3 + MgSO4
Clear liquids
Solid, white substance formed
in liquids
Precipitate formed
2. Calcium
chloride +
water
3. Food
coloring +
bleach
4. Washing
Soda +
Epsom Salt
5. Corn Starch
+ iodine
6. Steel wool +
acetic acid
Fine, white powder
(solid)
Brownish/orange liquid
Temp increased
Turned black and sticky
Color change
Temp change
Colorless liquid
Silver, solid, metal
Temperature increase (got hot)
Steel wool turned red, and softlooking (rust)
Color change
Temp change
H2O2
Brownish, granules
Clear liquid
Temperature increase
Bubbles/foaming
Gas produced
Temp change
KCl + H2O
Tiny, white crystal
powder
Clear liquid
Solid dissolved, temperature
decreased (got COLD)
Temp change
4Fe + 3O2
(acetic acid is an
oxidizer, allowing
oxygen to react with the
iron)
7. Yeast +
hydrogen
peroxide
8. Potassium
chloride +
water