Select True or False: The following reaction is a redox reaction. CaC2(s) + H2O) - HCCH(g)...
12 IL 34) Acetylene gas, HCCH(g), can be generated in the laboratory by adding calcium carbide to excess water, as shown in the following reaction CaC2(s) + H2O(1) ► HCCH(g) + Ca(s) How many grams of CaC2 would be required to generate 0.20 moles of HCCH(g)?
Redox and Non-Redox
Reactions
Redox and Non-Redox Reactions For each of the following reactions, answer: True or False? -- "This is an oxidation-reduction (redox) reaction." C Au(s) + 3HNO3(aq) + 4HCl(aq) + HAUCl4(aq) + 3NO2(g) + 3H20 (1) AgBr(s) + 2Na2S2O3(aq) - Na3Ag(S203)2(aq) + NaBr(aq) 4Br2(aq) + H2S2O3(aq) + 5H20(1) - 8HBr(aq) + 2H2SO4(aq) 2H2CrO4(aq) —+H2Cr2O7(aq) + H20(1) 3H20(1) + P4(s) + 3KOH(aq) — 3KH2PO2(aq) + PH3(g) Cao(s) + CO2(g) + CaCO3(s) Hg2Cl2(s) + 5HNO3(aq) → 2Hg(NO3)2(aq) + HNO2(aq) +...
81. Given the following data Ca(s) + 2C(graphite) → CaC2(s) AH-62.8 kJ Ca(s) + cao(s) + H2O(l)-→ Ca(OH)2(aq) C2H2(g) +022CO2(8)+ H200) 2(g)-→ CaO(s) ΔH =-635.5 kJ ΔH =-653.1 kJ C(graphite) + 02(g)-→ CO2(g) ΔH =-393.5 kJ calculate ΔH for the reaction CaC2(s) + 2H20() → Ca(OH)2(aq) + C2H2(g)
2. (10 pts) Given the following data Ca(s)2C(graphite)CaC2(s) -62.8 kJ OH635.5 Ca(s)1/202(g) CaO(s) kJ CaO(s)H20()- Ca(OH)2(aq) OH 653.1 kJ 2CO2(g)H2O(l OH1300 C2H2(g)5/202(g) kJ C(graphite) O2(g)CO2(g) H= -393.5 kJ calculateH for the reaction (show your work for full credit) CaC2(s)+ 2H20()- Ca(OH)2(aq) CH2(g)
Consider the following data: DeltaH (kj) Ca(s) + 2C(graphite)----> CaC2 (s) -62.8 Ca(s) + 1/2 O2 (g) -----> CaO (s) -635.5 CaO (s) + H2O(l) ----->Ca(OH)2 (aq) -653.1 C2H2(g)+ 5/2 O2(g)---->2CO2(g)+H2O(l) -1300 C(graphite)+ O2(g)---->CO2(g) -393.51 Use Hess' law to find the change in enthalpy at 25oC for this equation: CaC2(s)+2H2O(l)-----> Ca(OH)2 (aq)+ C2H2(g)
2. Determine which of these reaction(s) are redox reaction. 6 Li2O(s) + P4010(g) → 4 Li3PO4(s Cao(s) + H2O(1) + Ca(OH)2(s) s(s) + 3 F2(g) → SF6(g) Zns(s) + 2 O2(g) → ZnSO4(s) SO2(g) + Cl2(g) → SO2Cl2(g) CuSO4.5H20(s) → CuSO4(s) + 5 H2O(g) SnCl4•6H2O(s) → SnOz(s) + 4 HCl(8) + 4 H20(8) NH4NO2(s) → N2(g) + 2 H2O(g) (NH4)2Cr207(s) → N2(g) + Cr2O3(s) + 4 H2O(g) 2 Na(s) + Cl2(g) → 2 NaCl(s) SO3(g) + Cao(s) > CaSO4(s) SO2(g)...
1. Balance the following reaction and then complete the following questions: CaC2 + H2O → Ca(OH)2 + C2H2 a. How many moles of C2H2 will be created if 4.05 g of CaC2 are allowed to react (with excess water)? b. How many molecules of water were used in part A (i.e. how many water molecules reacted with the 4.05 g of CaC2)? c. What mass of CaC2 would you need if you wanted to produce 500.3 g of C2H2? 2....
5. Consider the following redox molecular reaction: Na(s) + H2O(l) ? NaOH(aq) + H2(g) If water is written as HOH(), then the equation is Na(s) + HOH(l) ? NaOH(aq) + H2(g) Write the following reactions: Oxidation reaction: Reduction reaction: Balanced net ionic reaction: Reducing agent: Oxidizing agent:
Which of the processes represented by the following chemical equations are exothermic?Choose one or more:A. $$heat+CaO(s)+3C(s)→CaC2(s)+CO(g)B. $$CH4(g)+2O2(g)→CO2(g)+2H2O(g)+heatC. $$CH3OH(g)+32O2(g)→CO2(g)+2H2O(g) ΔH=−676kJ/molD. $$2H2O(g)→2H2(g)+O2(g) ΔH=+483.6kJ/molE. $$I2(s)→I2(g)F. $$H2O(g)→H2O(l)
Consider the following reaction at equilibrium, CaCO3(s) ↔ CaO(s) + CO2(g). Which of the following statements are true regarding this equilibrium? Select all that are True. a) If CaO(s) is added from the equilibrium mixture the reaction will remain unchanged. b) If CaO(s) is removed from the equilibrium mixture the reaction will shift to the left. c) If CO2(g) is added to the equilibrium mixture the reaction will shift to the right. d) If CO2(g) is added to the equilibrium...