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Exercise I: What are the molar coefficients needed to balance the following equation? Al + HCI...
3. In the following reactions, identify which of the elements are oxidized and which are reduced...
3. In the following reactions, identify which of the elements are oxidized and which are reduced and enter the name of the element on the line. (3 points for each equation, 9 points total) a. 2Ca(s) + O2(g) - Cal is oxidized is reduced b. MnO2 (aq) + 4 HBr(aq) -Bra(l) + MnBr2 (aq) + 2 H2O(0) is oxidized is reduced C. Cl2(g) +2 NaBr(ag) 2NaCl(aq) + Br2 () (Here Cl is chlorine) is oxidized is reduced
4. Answer the following questions for the reaction below Mg (s) + HCl (aq)MgCl2 (aq) + H2(g) Balance the equation (SHOW...
4. Answer the following questions for the reaction below Mg (s) + HCl (aq)MgCl2 (aq) + H2(g) Balance the equation (SHOW YOUR WORK FOR FULL CREDIT!) (10 pts) a. Macla N S0, ->Mgcl2+H2 What type of reaction is this? (4 pts) b. Stugle 4 What are the oxidation states of: (4 pts/each) c. Reactants Products Mg H+2Y9 Mg+2 H+2 CL 6f CI What is being oxidized, what is being reduced? (5 pts/each) d. My oxidized vecaue it gives cl W...
25. What is the oxidation number of the indicated element in each of the following species?...
25. What is the oxidation number of the indicated element in each of the following species? A. ClinCl2is+2 Cr in K2Cr2O7 is +2 NinNO3-is+3 B. Cl in Cl2 is 0 Cr in K2Cr2O7 is +6 N in NO3- is +6 C.ClinCl2 is+7 Cr in K2Cr2O7 is +3 NinNO3-is-2 D. ClinCl2 is0 Cr in K2Cr2O7 is +6 NinNO3-is+5 E. ClinCl2is-1 Cr in K2Cr2O7 is +2 N in NO3- is -3 26. Which of the following statements is correct about the reaction...
Und lead in te - grace Keeney Laboratory Assignment: 1. Balance the following chemical equations. The...
Und lead in te - grace Keeney Laboratory Assignment: 1. Balance the following chemical equations. The ch 2 a. 2Fe + 3Cl2 FT 2 b. nowing chemical equations. The chemical states are not listed for simplicity's sake. Fech Fe-x2 ci-zu ci su 2 AICI, + 3 H2SO4 | Alz(50.). + 6 HCI H-1 Al-X2 H-2V Al-2 a-6 CI-35 Son-X3 I son-3 B2Br + 3 HNO, H - XV B(NO3)3 + 4HBr B - H B-2 N R N-X3 -3 ....
1. What coefficients would balance the following equation? _Al + _02_Al2O3 O A 2Al +3021A1203 O...
1. What coefficients would balance the following equation? _Al + _02_Al2O3 O A 2Al +3021A1203 O B.2A1+302 > 2Al2O3 O C.3Al + 302 + 2A1203 O D. Al +302 → 2A1203 2. What coefficients would balance the following equation? _C2H + _02 +_CO2+ _H20 O A 1CH5 +502 + 2002 + 3H20 OB 2C H5 +502 + 4CO2 + 6H20 OC. 20 H6 + 702 + 4CO2 + 6H20 OD. 2CH3 + 1002 + 4CO2 + 6H20 3. Classify the...
AH, АН, 2. Consider the following three reactions: 2 Al (s) + 6 HCI (aq) +...
AH, АН, 2. Consider the following three reactions: 2 Al (s) + 6 HCI (aq) + 2 AICI, (aq) + 3 H2 (9) Al2O3 (s) + 6 HCI (aq) + 2 AICI, (aq) + 3 H20 (1) 2 H2 (9) + O2(g) + 2 H20 (1) AH Show how these equations must be summed together according to Hess's Law to determine AH for the combustion of aluminum (target equation shown below). Also show clearly how the AH values of each...
check my work. if it's wrong please explain. 1) Determine the Oxidation Number of the indicated...
check my work. if it's wrong please explain.
1) Determine the Oxidation Number of the indicated element in each of the following compounds or poly-atomic ion: a) Nitrogen: NH: _3_ NHA - NO + NO +2 HNO: +5 b) Chlorine: HC: | HClo: + HClO +2 HClO: 45 HClO6 +7 c) Sulfur H2S: -2 50z: +4HSO.: +6 SC: + 2 s.0: +a Cox: +4_co: +2 d) Carbon: CHE: -4 e) Chromium: C1:03:43 C=CH: -4 H2C=: f) Manganese: MnO2 +4 Cror...
12) For the following reaction, what is the correct coefficient for the H2? Fe + HCI-FeCl3...
12) For the following reaction, what is the correct coefficient for the H2? Fe + HCI-FeCl3 + H2 A) 1 B)2 C) 3 D) 4 E) 5 13) What is the classification for this unbalanced reaction? Fe + HCI-FeCl3 + H2 A) combustion B) combination C) decomposition D) single replacement E) double replacement 14) Which of the following is an oxidation-reduction reaction? A) CaCl2 + Nag S04 - CaSO4 + 2NaCl B) KOH + HNO3 -> H2O + KNO3 C)...
1. Using the boxes below, balance the following chemical equations and fill in the blanks with...
1. Using the boxes below, balance the following chemical
equations and fill in the blanks with the coefficient and the
tables .
a) _____ Al(s) + _____ Cl2(g)
_____ AlCl3(s)
Reactants
Products
Al
Al
Cl
Cl
b) ___ Cr2O3(s) + _____ CCl4(l)
____ CrCl3(s) + _____ COCl2(g)
Reactants
Products
Cr
Cr
O
O
C
C
Cl
Cl
C ) _____ NO2(g) + _____ H2(g)
____ NH3(g) + _____ H2O(g)
Reactants
Products
2. Continue working on balancing chemical equations...
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance...
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance reduced, the oxidizing agent, the reducing agent. 1.2 Mg(s) + O2(g) → 2 MgO (s) 2. H SO. (aq) + Al(OH) (aq) → Al(SO.) (aq) + H,O (1) 3. 2 Na (s) + H2O (1) ► 2 NaOH(aq) + H2(g) 4. Cao (s) + CO2(g) → Caco, (s) 5. AgNO, (aq) + NaCl (aq) ► AgCl(s) + NaNO, (aq) Identify the substance oxidized, the...
3. In the following reactions, identify which of the elements are oxidized and which are reduced and enter the name of the element on the line. (3 points for each equation, 9 points total) a. 2Ca(s) + O2(g) - Cal is oxidized is reduced b. MnO2 (aq) + 4 HBr(aq) -Bra(l) + MnBr2 (aq) + 2 H2O(0) is oxidized is reduced C. Cl2(g) +2 NaBr(ag) 2NaCl(aq) + Br2 () (Here Cl is chlorine) is oxidized is reduced
4. Answer the following questions for the reaction below Mg (s) + HCl (aq)MgCl2 (aq) + H2(g) Balance the equation (SHOW YOUR WORK FOR FULL CREDIT!) (10 pts) a. Macla N S0, ->Mgcl2+H2 What type of reaction is this? (4 pts) b. Stugle 4 What are the oxidation states of: (4 pts/each) c. Reactants Products Mg H+2Y9 Mg+2 H+2 CL 6f CI What is being oxidized, what is being reduced? (5 pts/each) d. My oxidized vecaue it gives cl W...
Und lead in te - grace Keeney Laboratory Assignment: 1. Balance the following chemical equations. The ch 2 a. 2Fe + 3Cl2 FT 2 b. nowing chemical equations. The chemical states are not listed for simplicity's sake. Fech Fe-x2 ci-zu ci su 2 AICI, + 3 H2SO4 | Alz(50.). + 6 HCI H-1 Al-X2 H-2V Al-2 a-6 CI-35 Son-X3 I son-3 B2Br + 3 HNO, H - XV B(NO3)3 + 4HBr B - H B-2 N R N-X3 -3 ....
1. What coefficients would balance the following equation? _Al + _02_Al2O3 O A 2Al +3021A1203 O B.2A1+302 > 2Al2O3 O C.3Al + 302 + 2A1203 O D. Al +302 → 2A1203 2. What coefficients would balance the following equation? _C2H + _02 +_CO2+ _H20 O A 1CH5 +502 + 2002 + 3H20 OB 2C H5 +502 + 4CO2 + 6H20 OC. 20 H6 + 702 + 4CO2 + 6H20 OD. 2CH3 + 1002 + 4CO2 + 6H20 3. Classify the...
AH, АН, 2. Consider the following three reactions: 2 Al (s) + 6 HCI (aq) + 2 AICI, (aq) + 3 H2 (9) Al2O3 (s) + 6 HCI (aq) + 2 AICI, (aq) + 3 H20 (1) 2 H2 (9) + O2(g) + 2 H20 (1) AH Show how these equations must be summed together according to Hess's Law to determine AH for the combustion of aluminum (target equation shown below). Also show clearly how the AH values of each...
check my work. if it's wrong please explain.
1) Determine the Oxidation Number of the indicated element in each of the following compounds or poly-atomic ion: a) Nitrogen: NH: _3_ NHA - NO + NO +2 HNO: +5 b) Chlorine: HC: | HClo: + HClO +2 HClO: 45 HClO6 +7 c) Sulfur H2S: -2 50z: +4HSO.: +6 SC: + 2 s.0: +a Cox: +4_co: +2 d) Carbon: CHE: -4 e) Chromium: C1:03:43 C=CH: -4 H2C=: f) Manganese: MnO2 +4 Cror...
12) For the following reaction, what is the correct coefficient for the H2? Fe + HCI-FeCl3 + H2 A) 1 B)2 C) 3 D) 4 E) 5 13) What is the classification for this unbalanced reaction? Fe + HCI-FeCl3 + H2 A) combustion B) combination C) decomposition D) single replacement E) double replacement 14) Which of the following is an oxidation-reduction reaction? A) CaCl2 + Nag S04 - CaSO4 + 2NaCl B) KOH + HNO3 -> H2O + KNO3 C)...
1. Using the boxes below, balance the following chemical
equations and fill in the blanks with the coefficient and the
tables .
a) _____ Al(s) + _____ Cl2(g)
_____ AlCl3(s)
Reactants
Products
Al
Al
Cl
Cl
b) ___ Cr2O3(s) + _____ CCl4(l)
____ CrCl3(s) + _____ COCl2(g)
Reactants
Products
Cr
Cr
O
O
C
C
Cl
Cl
C ) _____ NO2(g) + _____ H2(g)
____ NH3(g) + _____ H2O(g)
Reactants
Products
2. Continue working on balancing chemical equations...
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance reduced, the oxidizing agent, the reducing agent. 1.2 Mg(s) + O2(g) → 2 MgO (s) 2. H SO. (aq) + Al(OH) (aq) → Al(SO.) (aq) + H,O (1) 3. 2 Na (s) + H2O (1) ► 2 NaOH(aq) + H2(g) 4. Cao (s) + CO2(g) → Caco, (s) 5. AgNO, (aq) + NaCl (aq) ► AgCl(s) + NaNO, (aq) Identify the substance oxidized, the...
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