Evidence of Chemical Reactions Answers

Identify the role of each substance participating in the reaction.carbon dioxide:

methane:

oxygen:

water:

Each of the items pictured represents a different chemical reaction. Rank these four reactions in order from fastest to slowest.

Two colorless chemicals combine inside a glow stick. When the chemicals combine, they produce brightly colored light. The glow stick’s temperature does not change.

Bread dough rising:

Adding road salt to an icy street:

Igniting a road flare:

Adding bleach to colored fabric: