Quiz 4 10) Predict the products of the following single replacement reaction. Zn(s) + CoCl2(aq) A)...
Predict the products of the following single replacement reaction. Zn(s) + CoCl2(aq) O ZnCo(aq) + Cl2(9) O ZnCoCl2(aq) O CoCl(aq) + ZnCl(aq) O Co(s) - ZnCl2(aq) O No reaction occurs ype here to search о в е
5) COCl2 (g) + 4 NH3 (g) =CO(NH2 (S) + 2 NH4Cl (S) This reaction is exothermic. Predict how the equilibrium amount of NH3 will change if: a) COCl is added b) CO(NH2)2 is added c) temperature is increased d) a catalyst is added e) the mixture is compressed
24. Determine A Sºrxn given the following information: Reaction: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(9) Substance Zn(s) HCl(aq) H2(g) Zn2+(aq) Cl(aq) Sº (J/mol x K) 60.9 56.5 130.58 -106.5 55.10 A) -39.6 J/mol.K B) O J/mol.K C) +39.6 J/mol.K D) -38.2 J/mol.K E) +38.2 J/mol.K
1. Classify each of the following as a combination,
decomposition, single replacement, double replacement, or
combustion reaction:
_______________
2 Fe2O3(s) + 3 C(s)
3 CO2(g) + 4 Fe(s)
_______________
2 KClO3(s)
2 KCl(s) + 3 O2(g)
_______________
2 C3H6(g) + 9 O2(g)
6 CO2(g) + 6H2O(g) + energy
_______________
N2(g) + 2 O2(g)
2 NO2(g)
_______________
BaCl2(aq) + K2SO4(aq)
BaSO4(s) + 2 KCl(aq)
2. Identify as an oxidation or reduction reaction:
Oxidation
Reduction
O2 + 4 e-
2...
Scotre e1047 ENis oxidized and O is reduced 6. jdentify the reducing agent in the following chemical reaction. Cd + Nio, 2H,ocd(OH ), + Ni(OH) OIN C HO D. Cajон): ЧноN 3 7. What element is reduced in the following chemical reaction? ed O'HZ+OS +'OSn 0s'HZ+ no на O'H 8. What mass of CaHOs (glucose) is needed to prepare 450. mL of a 0.650 M solution of glucose in water? A. 0.293 g B. 293 g C. 0.692 g D....
8) Balance the equation for the following reaction. Zn(s) + HCl(1) → ZnCl2(aq) + H2(g) -
What would be the physical state foe ZnSO4 in the following equation? Zn(s) + CuSO4(aq) = ZnSO4(aq) + Cu(s) O A. Solid B. Aqueous OC. Liquid D. Gas E. Plasma QUESTION 24 The following reaction can be classified as a: Zn(s) + H2SO4(aq) = ZnSO4(aq) + H2(g) O A. Combination reaction B. Single-replacement reaction OC. Decomposition reaction D. Double displacement reaction E. Evaporation reaction
The following redox reaction occurs in acidic solution: Zn(s) + VO3-(aq) ➔ Zn2+(aq) + V2+(aq) When this equation is balanced, the smallest whole-number coefficients are: Zn VO3- H2O A. 2,3,6 B. 1,1,1 C. 3,2,6 D. 1,2,3 E. 3.2.3
In the laboratory, hydrogen gas is usually made by the following reaction: Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq) How many liters of H2 gas, collected over water at an atmospheric pressure of 752 mm Hg and a temperature of 21.0°C, can be made from 1.566 g of Zn and excess HCl? The partial pressure of water vapor is 18.65 mm Hg at 21.0°C.
DUPOUUCHILL Reaction K3PO4(aq) + AlBrz(aq) → AIPO4(s) + KBr(aq) C.H3(g) + O2(g) + CO2(g) + H2O(g) P4 (8) + Na(s) → Na3P(s) d. Mg(s) + ZnCl2(aq) + MgCl2(aq) + Zn(s) e. CaCO3(s) - A) CaO(s) + CO3(g)