Physical properties and chemical data chart

Substance name
Color
Odor
Effect of heat
Cold h2o
Hot h2o
Litmus test
Dilute
HCl
Dilute NAOH
MG
Silver
No odor
No effect
No effect
No effect
Red litmus paper turn blue
White bubbles
No effect
Cu
Brown
No odor
No effect
No effect
No effect
Red litmus paper turn blue
No effect
No effect
Zn
Silver
No odor
No effect
No effect No effect
Red litmus paper turn blue
Fizzing
No effect
MgO
White
Powder smell
No effect
No effect
Strong boil
Red litmus paper turn blue
Yellow fizz
No effect
Cu(NO3)2
Blue
No odor
Turn green
No effect
No effect
No effect
Turn green
No effect
CuCO2
Green
No odor
Turn black
Dissolve
No effect
Red litmus paper turn blue
Fizzing light green
No effect
NaCl
white
No odor
No effect
No effect dissolve Red litmus paper turn blue
No effect
No effect
Observation and Results

Did you observer any chemical changes in this experiment?
Yes. CuCo2 turned green when I applied heat to it.

B. What evidence did you use to decide that something was a chemical change? I viewed my other test tubes to see if it there was a chemical change in those.

C. Give at least two examples of chemical changes you observed. Zn and MgO when I Diluted HCL

D. Classify the following properties of sodium metal as physical or chemical:
• Silver metallic color: Physical
• Turns gray in air:chemical
• Melts at 98ophysical
• Reacts explosively with chlorine gas: chemical

E. Classify the following changes as physical or chemical: • Water freezes at 0oC: Physical • Baking soda when combined with vinegar produces bubbles: Chemical
• Mothballs gradually disappear at room temperature: Physical
• Ice cubes in a freezer get smaller with time: Physcial
• Baking soda loses mass as it is heated:Chemical
• Tarnishing of silver:Chemical

F. How would you show that dissolving table salt is a physical change? If it dissolves in H20