Homework Answers
For (a) correct answer will be : a gas is produced
As zinc is more reactive so in acidic solution, hydrogen gas is produced after reduction of H+ ion
For (b) option are not visible, but I will suggest, try, a permanent color change is observed, it could be due to complex formation.
(c) you have marked correct, potassium is highly reactive so very high energy is produced
(d) marked correctly, AgCl appear as white precipitate because it is a sparingly soluble salt
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Choose the correct evidence of a chemical reaction for each of the following observations: a) adding...
Question 1 10 pts Choose the correct evidence of a chemical reaction for each of the...
Question 1 10 pts Choose the correct evidence of a chemical reaction for each of the following observations: a) adding a piece of zinc metal to acid causes bubbles to form [Select] b) mixing two colorless solutions gives a pink solution urse a permanent color change is obs c) adding potassium metal to water causes flames [Select) d) adding sodium chloride to a silver nitrate solution causes a white powder to form in the solution [Select
Reactants Observation(s) Type of Reaction Balanced Molecular Equation aqueous barium chloride + aqueous sodium sulfate A...
Reactants Observation(s) Type of Reaction Balanced Molecular Equation aqueous barium chloride + aqueous sodium sulfate A white solid forms after the solutions are mixed together. Precipitation Reaction BaCl(aq) + Na SO.(aq) - BaSO (s) + 2 NaCl(aq) zinc metal + hydrochloric acid Bubbles are observed after the solutions are mixed together. The zinc appears to be smaller in size. aqueous sodium phosphate + aqueous copper(II) sulfate A solid forms after the solutions are mixed together. copper metal + aqueous silver...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make sure you include phases for each reactant and product in the reaction. (s = solid. 1 = liquid, g = gas, aq = aqueous) a. Zinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is reacted...
1. Convert each of the following names into the following names into chemical formulas and then balance the reaction. K...
1. Convert each of the following names into the following names into chemical formulas and then balance the reaction. Ke sure you include phases for each reactant and product in the reaction. I = liquid, g = gas, aq = aqueous) 4 dinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is...
B. Write a balanced chemical reaction for the following word equations. (7 points) a. Potassium chlorate decompose...
B. Write a balanced chemical reaction for the following word equations. (7 points) a. Potassium chlorate decomposes to form potassium chloride and oxygen. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. c. Diphosphorous tetrabromide reacts with fluorine gas to produce diphosphorous tetrafluoride...
interpretation of a chemical change and nomenclature report pagea Interpretation of a Chemical Change & Nomenclature...
interpretation of a chemical change and nomenclature report
pagea
Interpretation of a Chemical Change & Nomenclature Report Pages Observations: Reaction Appearance Touch (Hot, cold, or no change) Smell (Describe) Did reaction occur? (yes/no) 1. List the reactions (by number) that: a. formed a precipitate: b. changed color: c. produced a gas: d. were endothermic: e. were exothermic: 2. Name the following: RbCI Fe(NO3)2 Ag2804_ KOH Mg3N2 3. Write the chemical formulas for: Sodium sulfate: Hydrochloric acid: Copper (II) chloride: Calcium...
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...
Chemical Reactions & Equations System 1: Reaction of Sodium Metal with Water Observations: solution start to...
Chemical Reactions & Equations System 1: Reaction of Sodium Metal with Water Observations: solution start to produce vapor and eventually catches fire Reaction Type: Balanced Equation: (Na with H2O) Reaction in words: The hydrogen gas produced in the reaction can ignite in the presence of oxygen gas in the air. If you observed flames above, it was likely due to this reaction Reaction Type: Balanced Equation: (hydrogen gas with oxygen gas): System 2: Combustion Reactions of Methane (CH4) and Cellulose...
Predict the products, given following reactants. Balance the resulting chemical equations. If no reaction happens the...
Predict the products, given following reactants. Balance the resulting chemical equations. If no reaction happens the then write NO RXN. 1. Gaseous butane is combusted 2. Solid magnesium is burned in air 3. Chlorine gas is bubbled through a solution of hydrogen fluoride 4. Solid silver oxide is decomposed 5. Solid zinc is placed in a solution of silver nitrate 6. Solid lead is placed in a solution of aluminum chloride 7. Liquid propanol is burned in oxygen 8. Solid...
6. Write a balanced equation describing each of the following chemical reactions. (a) Solid potassium chlorate,...
6. Write a balanced equation describing each of the following chemical reactions. (a) Solid potassium chlorate, KClO3, decomposes to form solid potassium chloride and diatomic oxygen gas. (b) Solid aluminum metal reacts with solid diatomic iodine to form solid Al2I6. (c) When solid sodium chloride is added to aqueous sulfuric acid, hydrogen chloride gas and aqueous sodium sulfate are produced. (d) Aqueous solutions of phosphoric acid and potassium hydroxide react to produce aqueous potassium dihydrogen phosphate and liquid water.
Question 1 10 pts Choose the correct evidence of a chemical reaction for each of the following observations: a) adding a piece of zinc metal to acid causes bubbles to form [Select] b) mixing two colorless solutions gives a pink solution urse a permanent color change is obs c) adding potassium metal to water causes flames [Select) d) adding sodium chloride to a silver nitrate solution causes a white powder to form in the solution [Select
Reactants Observation(s) Type of Reaction Balanced Molecular Equation aqueous barium chloride + aqueous sodium sulfate A white solid forms after the solutions are mixed together. Precipitation Reaction BaCl(aq) + Na SO.(aq) - BaSO (s) + 2 NaCl(aq) zinc metal + hydrochloric acid Bubbles are observed after the solutions are mixed together. The zinc appears to be smaller in size. aqueous sodium phosphate + aqueous copper(II) sulfate A solid forms after the solutions are mixed together. copper metal + aqueous silver...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make sure you include phases for each reactant and product in the reaction. (s = solid. 1 = liquid, g = gas, aq = aqueous) a. Zinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is reacted...
1. Convert each of the following names into the following names into chemical formulas and then balance the reaction. Ke sure you include phases for each reactant and product in the reaction. I = liquid, g = gas, aq = aqueous) 4 dinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is...
B. Write a balanced chemical reaction for the following word equations. (7 points) a. Potassium chlorate decomposes to form potassium chloride and oxygen. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. c. Diphosphorous tetrabromide reacts with fluorine gas to produce diphosphorous tetrafluoride...
interpretation of a chemical change and nomenclature report
pagea
Interpretation of a Chemical Change & Nomenclature Report Pages Observations: Reaction Appearance Touch (Hot, cold, or no change) Smell (Describe) Did reaction occur? (yes/no) 1. List the reactions (by number) that: a. formed a precipitate: b. changed color: c. produced a gas: d. were endothermic: e. were exothermic: 2. Name the following: RbCI Fe(NO3)2 Ag2804_ KOH Mg3N2 3. Write the chemical formulas for: Sodium sulfate: Hydrochloric acid: Copper (II) chloride: Calcium...
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...
Predict the products, given following reactants. Balance the resulting chemical equations. If no reaction happens the then write NO RXN. 1. Gaseous butane is combusted 2. Solid magnesium is burned in air 3. Chlorine gas is bubbled through a solution of hydrogen fluoride 4. Solid silver oxide is decomposed 5. Solid zinc is placed in a solution of silver nitrate 6. Solid lead is placed in a solution of aluminum chloride 7. Liquid propanol is burned in oxygen 8. Solid...
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