CONSERVATION OF MASS LAB 4.5.13
Mass can't be created or destroyed.
Chemical Reaction:
The five signs of a chemical reaction are:
1. Change of color
2. Formation of gas
3. Formation of precipitate
4. Change of temperature
5. Energy produced
6. Change in light
7. Change in Ph
C2H4O2 + NaHCO3 --> ?
(vinegar) (baking soda)
Chemical Reaction:
- A process that involves rearrangement of the molecular or ionic structure of a substance
- A process that involves changes in the structure and energy content of atoms, molecules, or ions but not their nuclei.
The five signs of a chemical reaction are:
1. Change of color
2. Formation of gas
3. Formation of precipitate
4. Change of temperature
5. Energy produced
6. Change in light
7. Change in Ph
C2H4O2 + NaHCO3 --> ?
(vinegar) (baking soda)
mass: 195.4
Mass: 193
C2H4O2 + NaHCO3 --> NaC2H3O2 + H2O + CO2
C2H4O2 + NaHCO3 --> NaC2H3O2 + H2O + CO2
Conclusion Questions:
1. The water fizzed up into the balloon and the bubbles were seen. You could smell it as well.
2. The mass was same, but just a little bit lower, because of the transformation into gas and the gas escaping.
3. The reactant was solid and liquid. The product was gas and liquid.
1. The water fizzed up into the balloon and the bubbles were seen. You could smell it as well.
2. The mass was same, but just a little bit lower, because of the transformation into gas and the gas escaping.
3. The reactant was solid and liquid. The product was gas and liquid.