Homework Answers
4 when the new product forms it is called product.
Reactants are the reacting species which gives products.
Intermediates are the structures between reactants and products.
Catalyst are used to change rate of reaction.
Hence option C is correct.
5) The two ionic compounds can form water gas or precipitates on reaction in water solution.
Hence option D is correct.
6) Here potassium sulfate and Lead nitrate are reactants
Potassium sulfate K2SO4
Lead nitrate Pb(NO3)2
Hence correct option is c
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u. SomeN KENICE I SOTTES S er. e 4 The new substances formed in a chemical...
Q45 Number ONLY. 1 Point Balance the following chemical reaction: Co203 (s) + C(s) + Co...
Q45 Number ONLY. 1 Point Balance the following chemical reaction: Co203 (s) + C(s) + Co (s) + CO2 (g) Enter the COEFFICIENTS of the reactants and products in order, TOGETHER AS ONE NUMBER in the subquestions below. THE NUMBER 1 MUST BE ENTERED Example: For 2H, + 0,2H,O you would enter 212 Q46 Multiple Choice 1 Point If aqueous solutions of lead(II) nitrate (Pb(NO3)2) and sodium sulfate (Na2SO.) are mixed together, which insoluble precipitate is formed? NaNO: Na.NO PbSO4...
The thermochemical equation for the reaction is shown below: 4 Al(s) + 3 O2(g) → 2...
The thermochemical equation for the reaction is shown below: 4 Al(s) + 3 O2(g) → 2 Al2O3(s) AH - -3352 kJ How much heat is released when 8.07 g of Al react with Oz(g) at 25 °C and 1 atm? -1.68 x 104 kJ 0-104 kJ 0-754 kJ 0-2.50 x 102 kJ Which of the following processes is exothermic? o Water condensing from steam. The vaporization of water The melting of ice. O Heating water to form steam Select the...
A26. What will be observed when 15.0 mL of 0.040 M lead(II) nitrate, Pb(NO3)2, is mixed...
A26. What will be observed when 15.0 mL of 0.040 M lead(II) nitrate, Pb(NO3)2, is mixed with 15.0 mL of 0.040 M sodium chloride? (lead chloride Ksp = 1.7 × 10–5). (A) A clear solution with no precipitate will result. (B) Solid PbCl2 will precipitate and excess Pb2+ ions will remain in solution. (C) Solid PbCl2 will precipitate and excess Cl– ions will remain in solution. (D) Solid PbCl2 will precipitate and there will be no excess ions in solution....
Chemical Reactions For each reaction you observed, the names of the reactants and products are given...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
I will fail to dissociate. E) none of the above It will do sol V Sally....
I will fail to dissociate. E) none of the above It will do sol V Sally. It will dissociate 14) If you had an aqueous mixture that contained Ag. different soli Terent solids could precipitate if a chloride solution was added A1 (B92 C) 3 D) 4 K contained Ag+, K+, and Pb2+ cations, how many AYA Kitcl > KCI) Pb²+ 200 - PbCl26) E) no solids will precipitate 3) What type of a reaction occurs when a potassium nitrate...
17. On the basis of the general solubility rules given in Table 7.1, write a balanced...
17. On the basis of the general solubility rules given in Table 7.1, write a balanced molecular equation for the precipitation reactions that take place when the following aqueous solutions are mixed. Underline the formula of the precipitate (solid) that forms. If no precipitation reaction is likely for the reactants given, explain why. a. ammonium chloride, NH,CI, and sulfuric acid, H,SO b. potassium carbonate, K,CO3, and tin(IV) chloride, Snc c. ammonium chloride, NH CI, and lead(II) nitrate, Pb(NO3) d. copper(II)...
Determine whether a precipitate form in the following reaction conditions: a. A solution containing lead (II)...
Determine whether a precipitate form in the following reaction conditions: a. A solution containing lead (II) nitrate is mixed with one containing sodium bromide to form a solution that is 0.0150 M in Pb(NO3)2 and 0.00350 M in NaBr. Does a precipitate form in the newly mixed solution? Ksp PbBr2 = 4.67 x 10-6 . b. A solution containing iron (II) nitrate is mixed with one containing sodium phosphate to form a solution that is 0.0365 M in Fe(NO3)2 and...
i need help answering these qoustions plz?????? Based on the solubility rules given in class, classify...
i need help answering these qoustions plz??????
Based on the solubility rules given in class, classify the following compounds as solid (s) or aqueous (aq) when added to water: a) Al(OH)3 b) Li3PO4 c) BaSO4 d) (NH4)2CO3 c) Mg(ClO3)2 f) HgCl2 Which combination of reactants results in an acid/base neutralization reaction? a. HNO3(aq) + Zn(s) → b. Mg(C104)2(aq) + NaOH(aq) → c. Ca(s) + H2SO4(aq) - d. H2CO3(aq) + LiOH(aq) → CA OB C What is the net ionic equation...
A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....
A 1.04 g sample of KBr is dissolved in water to give 155 mL of
solution. This solution is then added to 165 mL of 0.015 M aqueous
Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the
solution via precipitation as insoluble PbBr2(s).
The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
---> PbBr2 (s)
At the end of the reaction, what is the concentration (in
molarity) of nitrate ions in the solution?
Note:...
Questions 1. Consider the reaction of lead nitrate with sodium sulfate a) Complete and balance the...
Questions 1. Consider the reaction of lead nitrate with sodium sulfate a) Complete and balance the molecular equation for this reaction. Include physical states. Pb(NO3)2 (aq) + Na2SO4(aq) → b) Give the complete ionic equation with correct coefficients, charges and physical states. c) Give the net ionic equation d) What evidence did you observe for this reaction? 2. Consider the reaction of aqueous copper (II) nitrate with aqueous sodium carbonate. a) Give the balanced molecular equation with correct physical states....
Q45 Number ONLY. 1 Point Balance the following chemical reaction: Co203 (s) + C(s) + Co (s) + CO2 (g) Enter the COEFFICIENTS of the reactants and products in order, TOGETHER AS ONE NUMBER in the subquestions below. THE NUMBER 1 MUST BE ENTERED Example: For 2H, + 0,2H,O you would enter 212 Q46 Multiple Choice 1 Point If aqueous solutions of lead(II) nitrate (Pb(NO3)2) and sodium sulfate (Na2SO.) are mixed together, which insoluble precipitate is formed? NaNO: Na.NO PbSO4...
The thermochemical equation for the reaction is shown below: 4 Al(s) + 3 O2(g) → 2 Al2O3(s) AH - -3352 kJ How much heat is released when 8.07 g of Al react with Oz(g) at 25 °C and 1 atm? -1.68 x 104 kJ 0-104 kJ 0-754 kJ 0-2.50 x 102 kJ Which of the following processes is exothermic? o Water condensing from steam. The vaporization of water The melting of ice. O Heating water to form steam Select the...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
I will fail to dissociate. E) none of the above It will do sol V Sally. It will dissociate 14) If you had an aqueous mixture that contained Ag. different soli Terent solids could precipitate if a chloride solution was added A1 (B92 C) 3 D) 4 K contained Ag+, K+, and Pb2+ cations, how many AYA Kitcl > KCI) Pb²+ 200 - PbCl26) E) no solids will precipitate 3) What type of a reaction occurs when a potassium nitrate...
17. On the basis of the general solubility rules given in Table 7.1, write a balanced molecular equation for the precipitation reactions that take place when the following aqueous solutions are mixed. Underline the formula of the precipitate (solid) that forms. If no precipitation reaction is likely for the reactants given, explain why. a. ammonium chloride, NH,CI, and sulfuric acid, H,SO b. potassium carbonate, K,CO3, and tin(IV) chloride, Snc c. ammonium chloride, NH CI, and lead(II) nitrate, Pb(NO3) d. copper(II)...
i need help answering these qoustions plz??????
Based on the solubility rules given in class, classify the following compounds as solid (s) or aqueous (aq) when added to water: a) Al(OH)3 b) Li3PO4 c) BaSO4 d) (NH4)2CO3 c) Mg(ClO3)2 f) HgCl2 Which combination of reactants results in an acid/base neutralization reaction? a. HNO3(aq) + Zn(s) → b. Mg(C104)2(aq) + NaOH(aq) → c. Ca(s) + H2SO4(aq) - d. H2CO3(aq) + LiOH(aq) → CA OB C What is the net ionic equation...
A 1.04 g sample of KBr is dissolved in water to give 155 mL of
solution. This solution is then added to 165 mL of 0.015 M aqueous
Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the
solution via precipitation as insoluble PbBr2(s).
The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
---> PbBr2 (s)
At the end of the reaction, what is the concentration (in
molarity) of nitrate ions in the solution?
Note:...
Questions 1. Consider the reaction of lead nitrate with sodium sulfate a) Complete and balance the molecular equation for this reaction. Include physical states. Pb(NO3)2 (aq) + Na2SO4(aq) → b) Give the complete ionic equation with correct coefficients, charges and physical states. c) Give the net ionic equation d) What evidence did you observe for this reaction? 2. Consider the reaction of aqueous copper (II) nitrate with aqueous sodium carbonate. a) Give the balanced molecular equation with correct physical states....
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