chemical-reactions

chemical-reactions - Different Types of Reactions...

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Different Types of Reactions 1 combustion reactions - the “burning” of compounds in O 2 (g) 2 C 4 H 10 (g) + 13 O 2 (g) 8 CO 2 (g) + 10 H 2 O(l) Notes: (i) chemical equations must be balanced; must include physical states of reactants and products (ii) combustion of compounds of C and H or C, H and O give carbon dioxide and liquid water as the only products (iii) commonly used in compound identification (i.e., elemental analysis ) precipitation reactions - reactions that produce a sparingly soluble product called a precipitate precip demo NaCl(aq) + AgNO 3 (aq) AgCl (s) + NaNO 3 (aq) Na + (aq) + Cl - (aq) + Ag + (aq) + NO 3 - (aq) AgCl (s) + Na + (aq) + NO 3 - (aq) Cl - (aq) + Ag + (aq) AgCl (s) called a molecular eqn - shown as molecules called an ionic eqn - shown as ions, if possible; more realistic called a net ionic eqn ; spectator ions cancelled Notes: (i) we will discuss precip rxns in aqueous media only (ii) know the rules to identify which products are soluble and which are precipitates in water
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chemical-reactions - Different Types of Reactions...

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