Chemical Reactions

How do we know if a chemical reaction is taking place?

• change the product to something new

• nothing has changed to the reactants

Conservation of mass is best described by which of the following scenarios?

• Mass is lost during a chemical reaction.

• Initial mass = Final mass

When increasing the temperature of water

• you decrease the rate of collisions between the water molecules

• you increase the rate of collisions between the water molecules

How does the baking soda experiment support conservation of mass?

If you had water and oxygen gas forming from this experiment, what would you expect to physically see happening?

How does temperature effect the rate of a reaction?

How does concentration of substances effect the rate of chemical reactions?