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solutions_exam6 - Exam 6(solutions Chemical Equations...

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Exam 6 (solutions): Chemical Equations SC1-08: Regents Chemistry 1. Zn ( s ) + HCl ( aq ) ZnCl 2 + H 2 (a) Will this reaction go? Why or why not? Yes. Zn is more active than H by Table J. (b) If this reaction goes, what type of reaction is this? Single Replacement. (c) Rewrite and balance this equation. Be sure to fill in the states of the products. Zn ( s ) + 2 HCl ( aq ) ZnCl 2( aq ) + H 2( g ) 2. Cu ( s ) + ZnSO 4( aq ) Zn + CuSO 4 (a) Will this reaction go? Why or why not? No. Cu is less active than Zn by Table J. (b) If this reaction goes, what type of reaction is this? Doesn’t go, but would’ve been single replacement. (c) Rewrite and balance this equation. Be sure to fill in the states of the products. (d) Cu ( s ) + ZnSO 4( aq ) Zn ( s ) + CuSO 4( aq ) 3. ZnBr 2( aq ) + Na 2 CO 3( aq ) ZnCO 3 + NaBr 1
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(a) Will the reaction go? Why or why not? Yes. Favored formation of precipitate ZnCO 3 by Table F. (b) If the reaction goes, what type of reaction is this? Double Replacement. (c) Rewrite and balance this equation. Be sure to fill in the states of the products.
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