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.
A black powder is added to a clear liquid. Fizzing and bubbling occur, and the test tube becomes hot to the touch.
Two solids are combined. After a small amount of heat is applied, an explosion occurs and smoke is released.
A black powder is added to a clear liquid. Fizzing and bubbling occur, and the test tube becomes hot to the touch.
Two clear liquids are combined. A green solid forms.
When an egg is placed in a hot frying pan, the yolk and white become firmer and more opaque, and steam is emitted.
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:
Igniting a road flare:
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