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Question 3 (1 point) Label each of the following reactions as exothermic or endothermic ("exo" or...
state whether the following reactions are exothermic or endothermic: TOH2 +502 + N2 + 2 +...
state whether the following reactions are exothermic or
endothermic:
TOH2 +502 + N2 + 2 + 2H2 - AW03 - TUPU H UL 2. State whether each of the following reactions are exothermic or endothermic: a. NaOH(s) Na (aq) + OH (aq) 10H2 +602 + 2H2 10H2O + Z H2O 12H2 + 602 e 12 H₂ + 120 12H₂ + 120 + 12H2+120 b. NaOH(s) + H'(aq) + CI+ (aq) → H2O(1) + Na" (aq) + ciaq) c. Na" (aq)...
need help with all Predict if the following reactions are exothermic or endothermic a) 2 H2(g)...
need help with all
Predict if the following reactions are exothermic or endothermic a) 2 H2(g) + O2(g/> 2 H2O(g) ΔΗ -484 kJ b) 2 Al(s) + Fe2O3(s) → 2 Fe(s) + Al2O3(s)AH =-852 kJ c) 2 H2O(g) 2 H2(g) + O2(g)AH :484 kJ d) 2 NH3(g) → N2(g) + 3 H2(g)AH = 92.2 kJ e) H2O(g) H2O(l) ΔΗ--44 kJ
1. Classify each of the following as a combination, decomposition, single replacement, double replacement, or combustion...
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...
#1 #2 #3 Classify each of the following processes as exothermic or endothermic. 1. The dissolution...
#1
#2
#3
Classify each of the following processes as exothermic or endothermic. 1. The dissolution of NaOH in water causes the water to become warm. 2.When an instant ice pack is activated, it becomes cold to the touch. 3.In the combustion of propane, a bright flame is produced 4.2H2(g) + O2(g) → 2H2O(g) + 483 kJ/mol How much energy is required to produce 4.67 g. C6H1206(s)? (The molar mass of C6H1206 is 180.16 g/mol.) |6C02(g) + 6H2O(g) + 2801...
Using standard heats of formation, calculate the standard enthalpy change for the following reaction 2HBr(g) H2(g)...
Using standard heats of formation, calculate the standard enthalpy change for the following reaction 2HBr(g) H2(g) + Br2() ANSWER kJ Submit Answer Retry Entire Group 2 more group attempts remaining Given the standard enthalpy changes for the following two reactions: (1) Zn(s)+ Cl2(g) ZnCl2(s) AH° = -415.0 kJ (2) Fe(s) + Cl2(g) FeCl2(s) AH° = -341.8 kJ what is the standard enthalpy change for the reaction: (3) Zn(s) + FeCl(s) AH° ? ZnCl2(s) + Fe(s) kJ Given the standard enthalpy...
QUESTION 7 Which of the following is a redox reaction? HBr(aq) + KOH(aq) - H20(1) +...
QUESTION 7 Which of the following is a redox reaction? HBr(aq) + KOH(aq) - H20(1) + KBr(aq) | SO3(g) + H2001) — H2504(aq) HBr(aq) + Na2S(aq) — NaBr(aq) + H2S(g) | NH4+ (aq) + 2 O2(g) — H2001) + NO3(aq) + 2 H+ (aq) Na(s) + Cl2(g) - NaCl(s) None of the above are redox reactions.
Which of the following reactions would have the most positive AS° value? A) SO2(g) + Na20(s)...
Which of the following reactions would have the most positive AS° value? A) SO2(g) + Na20(s) – Na,SO3(s) B) CO2(s) — CO2(g) C) Fe3+(aq) + SCN-(aq) — FeSCN2+(aq) D) N2(g) + 3 H2(g) – 2 NH3(g) E) 2 NO(g) + Cl2(g) – 2 NOCI(g)
15. Classify each of the following chemical changes as an exothermic or endothermic reactions. a. A...
15. Classify each of the following chemical changes as an exothermic or endothermic reactions. a. A reaction released 550 J. b. The energy level of the products is higher than that of the reactants c. The metabolism of glucose in the body provides energy. d. The energy level of the products is lower than that of the reactants. e. In the body the synthesis of proteins requires energy. f. CH(8) 202(g) Co,(8) + 2H,O(g) + 802 kJ g. Ca(OH)2(s) +65.3...
UUTIIL NAME: PRE-LAB ENDOTHERMIC AND EXOTHERMIC REACTIONS. VERNIER Consider the following Data 59°C Final temperature, 1...
UUTIIL NAME: PRE-LAB ENDOTHERMIC AND EXOTHERMIC REACTIONS. VERNIER Consider the following Data 59°C Final temperature, 1 (°C) 39°C Initial temperature, (°C) Temperature change, A/ (°C) PROCESSING THE DATA 1. Calculate the temperature change, A1, for the reaction by subtracting the initial temperature, 1, from the final temperature, 1. (Ar=1:- ). 2. Calculate the amount of heat energy, g, produced in each reaction. Use 1.03 g/mL for the density of all solutions. Use the specific heat of water, 4.18 J/(g•°C), for...
6. (1 pt) Which represents an ENDOTHERMIC reaction? a. 10 kJ + reactants - products b....
6. (1 pt) Which represents an ENDOTHERMIC reaction? a. 10 kJ + reactants - products b. reactants-> products + 10 kJ C reactants - products d. reactants-products 7. (1 pt) Which represents a reaction that requires a catalyst? a. 10 kJ + reactants-> products b. reactants -> products + 10 kJ c. reactants products d. reactants-> products 8. (1 pt) Which represents reversible reaction? a. 10 kJ + reactants -> products b. reactants-> products + 10 kJ C. reactants products...
state whether the following reactions are exothermic or
endothermic:
TOH2 +502 + N2 + 2 + 2H2 - AW03 - TUPU H UL 2. State whether each of the following reactions are exothermic or endothermic: a. NaOH(s) Na (aq) + OH (aq) 10H2 +602 + 2H2 10H2O + Z H2O 12H2 + 602 e 12 H₂ + 120 12H₂ + 120 + 12H2+120 b. NaOH(s) + H'(aq) + CI+ (aq) → H2O(1) + Na" (aq) + ciaq) c. Na" (aq)...
need help with all
Predict if the following reactions are exothermic or endothermic a) 2 H2(g) + O2(g/> 2 H2O(g) ΔΗ -484 kJ b) 2 Al(s) + Fe2O3(s) → 2 Fe(s) + Al2O3(s)AH =-852 kJ c) 2 H2O(g) 2 H2(g) + O2(g)AH :484 kJ d) 2 NH3(g) → N2(g) + 3 H2(g)AH = 92.2 kJ e) H2O(g) H2O(l) ΔΗ--44 kJ
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...
#1
#2
#3
Classify each of the following processes as exothermic or endothermic. 1. The dissolution of NaOH in water causes the water to become warm. 2.When an instant ice pack is activated, it becomes cold to the touch. 3.In the combustion of propane, a bright flame is produced 4.2H2(g) + O2(g) → 2H2O(g) + 483 kJ/mol How much energy is required to produce 4.67 g. C6H1206(s)? (The molar mass of C6H1206 is 180.16 g/mol.) |6C02(g) + 6H2O(g) + 2801...
Using standard heats of formation, calculate the standard enthalpy change for the following reaction 2HBr(g) H2(g) + Br2() ANSWER kJ Submit Answer Retry Entire Group 2 more group attempts remaining Given the standard enthalpy changes for the following two reactions: (1) Zn(s)+ Cl2(g) ZnCl2(s) AH° = -415.0 kJ (2) Fe(s) + Cl2(g) FeCl2(s) AH° = -341.8 kJ what is the standard enthalpy change for the reaction: (3) Zn(s) + FeCl(s) AH° ? ZnCl2(s) + Fe(s) kJ Given the standard enthalpy...
QUESTION 7 Which of the following is a redox reaction? HBr(aq) + KOH(aq) - H20(1) + KBr(aq) | SO3(g) + H2001) — H2504(aq) HBr(aq) + Na2S(aq) — NaBr(aq) + H2S(g) | NH4+ (aq) + 2 O2(g) — H2001) + NO3(aq) + 2 H+ (aq) Na(s) + Cl2(g) - NaCl(s) None of the above are redox reactions.
Which of the following reactions would have the most positive AS° value? A) SO2(g) + Na20(s) – Na,SO3(s) B) CO2(s) — CO2(g) C) Fe3+(aq) + SCN-(aq) — FeSCN2+(aq) D) N2(g) + 3 H2(g) – 2 NH3(g) E) 2 NO(g) + Cl2(g) – 2 NOCI(g)
15. Classify each of the following chemical changes as an exothermic or endothermic reactions. a. A reaction released 550 J. b. The energy level of the products is higher than that of the reactants c. The metabolism of glucose in the body provides energy. d. The energy level of the products is lower than that of the reactants. e. In the body the synthesis of proteins requires energy. f. CH(8) 202(g) Co,(8) + 2H,O(g) + 802 kJ g. Ca(OH)2(s) +65.3...
UUTIIL NAME: PRE-LAB ENDOTHERMIC AND EXOTHERMIC REACTIONS. VERNIER Consider the following Data 59°C Final temperature, 1 (°C) 39°C Initial temperature, (°C) Temperature change, A/ (°C) PROCESSING THE DATA 1. Calculate the temperature change, A1, for the reaction by subtracting the initial temperature, 1, from the final temperature, 1. (Ar=1:- ). 2. Calculate the amount of heat energy, g, produced in each reaction. Use 1.03 g/mL for the density of all solutions. Use the specific heat of water, 4.18 J/(g•°C), for...
6. (1 pt) Which represents an ENDOTHERMIC reaction? a. 10 kJ + reactants - products b. reactants-> products + 10 kJ C reactants - products d. reactants-products 7. (1 pt) Which represents a reaction that requires a catalyst? a. 10 kJ + reactants-> products b. reactants -> products + 10 kJ c. reactants products d. reactants-> products 8. (1 pt) Which represents reversible reaction? a. 10 kJ + reactants -> products b. reactants-> products + 10 kJ C. reactants products...
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