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The Symbol +

The Symbol +. means you have more than one reactant or product. MnO 2. H 2 O 2(aq) H 2 O (l) + O 2 (g). The Symbol. means the reaction goes in this direction. Think the word “yields”. MnO 2. H 2 O 2(aq) H 2 O (l) + O 2 (g). The Symbol.

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The Symbol +

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  1. The Symbol + means you have more than one reactant or product. MnO2 H2O2(aq) H2O (l)+ O2 (g)

  2. The Symbol means the reaction goes in this direction. Think the word “yields” MnO2 H2O2(aq) H2O (l)+ O2 (g)

  3. The Symbol means the reaction goes in both directions. It is reversible. H2O(aq) H+(aq)+ OH-(aq)

  4. The Symbol means the reaction goes in this direction. Think the word “yields” MnO2 H2O2(aq) H2O (l)+ O2 (g)

  5. The Symbols (aq) (l) (g) (s) means the physical state of the chemicals in the reaction: “dissolved in water,” “liquid”, “gas”, “solid” H2O2(aq) H2O (l)+ O2 (g)

  6. The Symbol ∆ or heat means “heat added to make the reaction go.” kernals (s)∆ H2O (g) + popcorn (s)

  7. The Symbol MnO2 means a catalyst is needed to make the reaction go. (a catalyst is a chemical that speeds a reaction but is not used up in the reaction.) MnO2 is an example of a catalyst H2O2(aq) H2O (l)+ O2 (g) MnO2

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