ASSIGNMENT 7Question 6Select the equations that apply to the following questions.Which equation(s) represent a precipitation reaction?(1) Ca²+ (aq) + S² (aq) → CaS (s)(ii) H+ (aq) + Cl- (aq) + Na+ (aq) + CN- (aq) → HCN (g) + Na+ (aq) + Cl- (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)₂ (s) + 2KCI (aq)(iv) NO² (aq) +H* (aq) → HNO₂ (aq)(v) H3PO4 (aq) + NH3 (aq) → NH4H₂PO4 (aq)_ (vi) NH.Br(ag) + NaOH (ag) → NaBr (aq) + NH3 (g) +H2O (I)(vii) NaCHO₂ (aq) + HNO3(aq) → NaNO3(aq) + HCHO₂ (aq)Which equation(s) represent an acid-base reaction?(i) Ca²+ (aq) + S² (aq) → CaS (s)(ii) H+ (aq) + CI (aq) + Na* (aq) + CN (aq) → HCN (g) + Na* (aq) + Cl (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)2 (s) + 2KCI (aq)(iv) NO²+ (aq) + H+ (aq) → HNO₂ (aq)(v) H3PO4 (aq) + NH3 (aq) → NH₂H₂PO4 (aq)L (vi) NHaBr (ag) + NaOH (ag) → NaBr (aq) + NH3 (g) + H2O ((vii) NaCHO₂ (aq) + HNO3(aq) → NaNO3(aq) + HCHO₂ (aq)Which equation(s) represent a reaction that forms a weak electrolyte?(i) Ca²+ (aq) + S² (aq) → CaS (s)(ii) H+ (aq) + Cl(aq) + Na* (aq) + CN (aq) → HCN (g) + Na* (aq) + Cl¯ (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)2 (s) + 2KCI (aq)(iv) NO² (aq) + H+ (aq) →HNO₂ (aq)(v) H3PO4 (aq) + NH3(aq) →NH₂H₂PO₂ (aq)_ (vi) NHaBr (aq)+ NaOH (ag) → NaBr (aq) + NH3 (g)+H2O (I)(vii) NaCHO₂ (aq) + HNO3(aq) → NaNO3(aq) + HCHO₂ (aq)Which equation(s) represent a reaction that forms gas?(i) Ca²+ (aq) + S²- (aq) → CaS (s)(ii) H* (aq) + Cl¯ (aq) + Na* (aq) + CN- (aq) → HCN (g) + Na* (aq) + Cl¯ (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)2 (s) + 2KCI (aq)(iv) NO2 (aq) + H+ (aq) →HNO₂ (aq)(v) H3PO4 (aq) + NH3(aq) →NH₂H₂PO₂ (aq)Ẹ (vi) NHaBr (ag) + NaOH (ag) → NaBr (aq) + NH3 (g) + H2O ((vii) NaCHO₂ (aq) + HNO3(aq) → NaNO3(aq) + HCHO₂ (aq)Which equation(s) are not balanced?(i) Ca²+ (aq) + S²- (aq) → CaS (s)(ii) H* (aq) + Cl (aq) + Na* (aq) + CN (aq) → HCN (g) + Na* (aq) + Cl¯ (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)2 (s) + 2KCI (aq)(iv) NO²+ (aq) + H+ (aq) → HNO₂ (aq)(v) H3PO4 (aq) + NH3(aq) → NH₂H₂PO₂ (aq)_ (vi) NHaBr (aq)+ NaOH (ag) →(vii) NaCHO₂ (aq) + HNO3(aq) →NaBr (aq) + NH3 (g)+H2O (I)NaNO3(aq) + HCHO₂ (aq)Which equation(s) are net ionic equations?(1) Ca²+ (aq) + S²- (aq) → CaS (s)(ii) H+ (aq) + Cl(aq) + Na+ (aq) + CN- (aq) → HCN (g) + Na+ (aq) + Cl- (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)2 (s) + 2KCI (aq)(iv) NO² (aq) +H* (aq) → HNO₂ (aq)(v) H3PO4 (aq) + NH3 (aq) → NH₂H₂PO4 (aq)_ (vi) NH,Br (ag) + NaOH(ag) → NaBr (aq) +NHg (g) +H,O (I)(vii) NaCHO₂ (aq) + HNO3(aq) → NaNO3(aq) + HCHO₂ (aq)Which equation(s) are ionic equations?(i) Ca²+ (aq) + S²- (aq) → CaS (s)(ii) H+ (aq) + Cl (aq) +Na+ (aq) + CN- (aq) → HCN (g) +Na+ (aq) + Cl- (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)2 (s) + 2KCI (aq)(iv) NO² (aq) + H+ (aq) → HNO₂ (aq)(v) H3PO4 (aq) + NH3(aq) → NH₂H₂PO₂ (aq)_ (vi) NH,Br (ag) + NaOH(ag) → NaBr (aq) + NHs (g) + H,O (I)(vii) NaCHO₂ (aq) + HNO3(aq) → NaNO3(aq) + HCHO₂ (aq)Which equation(s) are molecular equations?(i) Ca²+ (aq) + S² (aq) → CaS (s)(ii) H+ (aq) + Cl- (aq) + Na+ (aq) + CN- (aq) → HCN (g) + Na+ (aq) + Cl- (aq)(iii) SrCl₂ (aq) + KOH(aq) → Sr(OH)₂ (s) + 2KCI (aq)(iv) NO² (aq) +H* (aq) →HNO₂ (aq)(v) H3PO4 (aq) + NH3(aq) → NH₂H₂PO₂ (aq)_ (vi) NHaBr (aq) + NaOH(ag) → NaBr (aq) + NH3 (g) +H2O (I)(vii) NaCHO₂ (aq) + HNO3(aq) →NaNO3(aq) + HCHO₂ (aq)

According to the bartleby guidelines for the multiple choice questions I can solve only first three…

Question 6 Select the equations that apply to the following questions. Which equation(s) represent a precipitation reaction? (i) Ca2+ (aq) + S2 (aq) CaS (s) Sr(OH)2 (s) + 2KCI (aq) (ii) H+ (aq) + Cl(aq) + Na+ (aq) + CN- (aq) → HCN (g) + Na+ (aq) + Cl- (aq) (iii) SrCl₂ (aq) + KOH(aq) (iv) NO2 (aq) +H* (aq) (v) H3PO4 (aq) + NH3(aq) E (vi) NHaBr (aq) + NaOH (aq) (vii) NaCHO₂ (aq) + HNO3(aq) - → HNO₂ (aq) → Which equation(s) represent an acid-base reaction? NH4H₂PO4 (aq) NaBr (aq) + NH3 (g)+H2O (I) NaNO3(aq) + HCHO₂ (aq) (i) Ca²+ (aq) + S² (aq) CaS (s) (ii) H* (aq) + Cl (aq) + Na* (aq) + CN (aq) (iii) SrCl₂ (aq) + KOH(aq) (iv) NO2 (aq) + H+ (aq) HCN (g) + Na* (aq) + Cl¯ (aq) Sr(OH)2 (s) + 2KCI (aq) HNO₂ (aq) (v) H3PO4 (aq) + NH3(aq) E (vi) NHaBr (aq) + NaOH (aa) (vii) NaCHO₂ (aq) + HNO3(aq) NH₂H₂PO4 (aq) NaBr (aq) + NH3 (g)+H2O (I) NaNO3(aq) + HCHO₂ (aq) Which equation(s) represent a reaction that forms a weak electrolyte? (i) Ca²+ (aq) + S²- (aq) Cas (s) (ii) H+ (aq) + Cl (aq) + Na* (aq) + CN- (aq) → HCN (g) + Na* (aq) + Cl¯ (aq) (iii) SrCl₂ (aq) + KOH(aq) Sr(OH)2 (s) + 2KCI (aq) (iv) NO2 (aq) + H+ (aq) (v) H3PO4 (aq) + NH3(aq) E (vi) NHaBr (aq) + NaOH (aq) (vii) NaCHO₂ (aq) + HNO3(aq) HNO₂ (aq) NH4H₂PO4 (aq) NaBr (aq) + NH3 (g) + H2O (I) -> NaNO3(aq) + HCHO₂ (aq)

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...