Notes from Class

Simple Machines

Physics Flash Cards


Forces in One Dimension

Moving Man Experiment

What is the correlation between the mass of the reactants and the mass of the products when a gas is formed?

Independent Variable:Mass of the reatants
Dependent Variable:Mass of the products
Constants:same equiptment, same chemicals

  • The balance was zeroed.
  • Mass of the glassware was measured (24.2g)
  • Ten mililiters of water added to the vial
  • Alka-Seltzer was placed on the balance
  • The new mass(reactants+glassware) was 34.0g
  • Mass of the reactants is 9.8
  • The Alka-Seltzer was placed in the vial with the water and the lid was put on
  • The Alka-Selzer began to dislove and the product of carbon dioxide was formed
  • Mass remained 34.0g
  • The mass of the products was the same as the reactants(9.8)
  • The lid was removed and very little gas was produced
When a gas is formed, the mass of the reactants and the mass of the products stay the same thanks the the Law of Conservation of Mass. This supports our hypothesis.

DataData from the lab!

Learning Targets for 5th Term and Independent Project Ideas

Webinar Day 4

Internet Activity: Chemical Reactions

Webinar Day 3

june 14