Copy of Types of Chemical Reactions Key.pdf

Answer Key > Copy of Types of Chemical Reactions Key.pdf

DeLaSalle High School CHE 235 Types of Chemical Reactions Key Types of Chemical Reactions Do atoms rearrange in predictable patterns during chemical reactions? Why? Recognizing patterns allows us to predict future behavior. Weather experts use patterns to predict dangerous storms so people can get their families to safety. Political analysts use patterns to predict election ...[Show More]

Types of Chemical Reactions Key Types of Chemical Reactions Do atoms rearrange in predictable patterns during chemical reactions? Why? Recognizing patterns allows us to predict future behavior. Weather experts use patterns to predict dangerous storms so people can get their families to safety. Political analysts use patterns to predict election outcomes. Similarly, chemists classify chemical equations according to their patterns to help predict products of unknown but similar chemical reactions. Model 1 – Types of Reactions Set A - Synthesis Set B - Decomposition 4Fe(s) + 3O2 (g) → 2Fe2O3 (s) MgCO3 (s) → MgO(s) + CO2 (g) N2 (g) + 3H2 (g) → 2NH3 (g) 8Li2S(s) → 16Li(s) + S8 (s) 2SO2 (g) + O2 (g) → 2SO3 (g) 2H2O(l) → 2H2 (g) + O2 (g) MgO(s)+ H2O(l) → Mg(OH) 2 (aq) 2KClO3 (s) → 2KCl(s) + 3O2 (g) P2O5 (g) + 3H2O(l) → 2H3PO4 (aq) 2Na2O2 (s) → 2Na2O(s) + O2 (g) SO3 (g) + H2O(l) → H2SO4 (aq) (NH4) 2CO3 (s) → 2NH3 (g) + H2O(l) + CO2 (g) Set C - Single Replacement Set D - Double Replacement 2FeCl3 (aq) + 3Zn(s) → 2Fe(s) + 3ZnCl2 (aq) AgNO3 (aq) + NaCl(aq) → AgCl(s) + NaNO3 (aq) 2Al(NO3 ) 3 (aq) + 3Ca(s) → 3Ca(NO3 ) 2 (aq) + 2Al(s) 2HNO3 (aq) + Mg(OH) 2 (aq) →Mg(NO3 ) 2 (aq) + 2H2O(l) Mg(s) + CuSO4 (aq) → MgSO4 (aq) + Cu(s) FeBr3 (aq) + K3PO4 (aq) → FePO4(s) + 3KBr(aq) 2Al(s) + 6HCl(aq) → 2AlCl3 (aq) + 3H2 (g) Na2CO3 (aq) + CaCl2 (aq) →CaCO3 (s) + 2NaCl(aq) Cl2 (g) + 2NaBr(aq) → 2NaCl(aq) + Br2(l) FeS(s) + 2HCl(aq) → H S(g) + FeCl (aq) ZnBr2 (aq) + F2 (g) → ZnF2 (aq) + Br2 (l) HCl(aq) + NaOH(aq) → H O(l) + NaCl(aq) 1. The chemical equations in Model 1 contain the phase notations (s), (l), (g), and (aq). Write each symbol by each meaning. dissolved in water liquid solid gas (aq) (l) (s) (g) 2. Based on the examples provided, which set(s) of reactions in Model 1 typically involve ions in solution (A, B, C or D)? C, D 3. Based on the examples provided, which set(s) of reactions in Model 1 typically involve gases and/or solids? A, B

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