Baking soda is mixed with water, and no bubbles are produced. when baking soda is mixed with vinegar, it bubbles and foams rapidly.
what chemical property of baking soda is shown in this scenario?
flammability
color change
reactivity
boiling point

Reactivity

Explanation:

The scenario shows that baking soda is reactive enough to produce bubbles with vinegar but not enough to do so in pure water.

Flammability, color change, and boiling point are all wrong.  The scenario says nothing about these properties.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error