7.77 Evidence of Chemical Reactions and Conservation of Atoms
0%
Skill Level🔴 Hard
00:00
Progress to Next Level25% to Medium
EasyMediumHardMastery100%
Passage
A student performs a reaction in a sealed container. Before: 12.40 g. After: 12.40 g. She also notices that a new solid formed and a gas pocket appeared above the liquid. |