Homework Answers
Answer 1):-The chemical which is added to increase the rate of a reaction is called "Catalyst".
A catalyst provide an alternative path for the reaction with a lower energy barrier. Due to lowering of energy barrier, a larger number of molecules of reactants are able to cross it. As a result , the rate of reaction increases.
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Answer 2):- The pH of tap water mostly be around 7.. Thus, tap water is considered to be neutral in nature ..But , the pH of tap water may vary depending upon the mineral content.
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Answer 3):- The chemical which is always formed in neutralisation reaction is H2O (water).
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50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB 1. In experiment #3, the manganese...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB I. In experiment #3, the manganese...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB I. In experiment #3, the manganese dioxide (MnO,) was added to the test tube containing hydrogen peroxide (H,O2) in order to speed up the reaction. What is the name given to a chemical that is added to a reaction in order to increase its rate? 2. Did you expect tap water to be acidic, basic or neither? Explain your answer. Neutralization reactions involve the hydrogen ions (H+) from an acid,...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a hydrochloric acid solution to produce hydrogen gas and a magnesium chloride solution. Another reaction that has a gaseous product is the reaction of a hydrochloric acid solution (HCl(ag)) with sodium sulfite (Na,so,(ag)) solution to produce a sodium chloride solution (NaCl(aq)) and gaseous sulfur dioxide (S0,(g)). Write a balanced chemical equation for this reaction. 2. The sulfur dioxide produced by aqueous chemistry in the previous...
CHEM 1405-Experiment 8: Chemical Reactions Section: Date: Name: Post-lab Questions Write balanced equations for each of...
CHEM 1405-Experiment 8: Chemical Reactions Section: Date: Name: Post-lab Questions Write balanced equations for each of the following reactions: gle replacement reaction between aluminum metal and aqueous nickel(II) chloride. (b) Single replacement reaction between calcium metal and hydrochloric acid. ⓒ Duble replacement and decomposition reaction between sodium, bicarbonate and acetic acid (Hin: double replacement firest, then carbonic acid decomposes into CO; and another product - 3 products in total 2 In each of the following changes, indicate whether the starting...
Lab 7: Types of Chemical Reactions Types of Chemical Reactions 3. The laboratory instructor gives yvou a test tube containing Ag Cu" ions. Dev 3. The laboratory instructor gives you a test tu...
Lab 7: Types of Chemical Reactions Types of Chemical Reactions 3. The laboratory instructor gives yvou a test tube containing Ag Cu" ions. Dev 3. The laboratory instructor gives you a test tube containing Ba2, and each of these ions. Write a balanced reaction scheme that would allow you to selectively precipitate net ionic equation for each precipitation reaction.
Lab 7: Types of Chemical Reactions Types of Chemical Reactions 3. The laboratory instructor gives yvou a test tube containing Ag...
Hello, these are part of one question, please show work. Data Sheet Chemical Reactions 2. Obtain a...
Hello, these are part of one question, please show work.
Data Sheet Chemical Reactions 2. Obtain and clean with sandpaper to expose the surface: 3 pieces of zine, 2 pieces of copper and 1 piece of lead. Place 6 test tubes in a rack and label each appropriately. Observe the contents of each of the test tubes for evidence of a reaction. Record your observations in the tables below TABLE 55 Observations Tube I: Copper strip and approximately 1 mL...
i only need g, h and I please Classifying Chemical Reactions continued Classifying Chemical Reactions continued...
i
only need g, h and I please
Classifying Chemical Reactions continued Classifying Chemical Reactions continued 3. Write a balanced chemical equation for each reaction and classify the reaction. a. Copper metal heated with oxygen gives solid copper(II)oxide. 4 cu +02 → 2420 (5) combination reachon b. Mixing ammonium nitrate and sodium hydroxide solutions gives aqueous sodium nitrate, ammonia gas, and water. NHL NO2+ NaOH -> Na NO₃(aq) + NH₃ (9)+H₂O (e) double replacement c. Mercury(II) nitrate solution reacts with...
Experiment 6: A Series of Chemical Changes Experiment A SERIES OF CHEMICAL CHANGES The After Thought...
Experiment 6: A Series of Chemical Changes
Experiment A SERIES OF CHEMICAL CHANGES The After Thought ! Cross out the incorrect statements dealing with the notation and interpretation of chemical reactions. In a chemical reaction: - the notation symbolizes the starting substances and the substances produced as a chemical transformation is carried out - the Law of Conservation of Mass requires that the number of atoms of each element cannot change during the process - formulas of the reactants and...
Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions...
Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions that are relevant to this lab. TO 2. List three observations that might suggest that a chemical reaction has occurred. 3. What observation would you expect to make when red litmus paper is exposed to a basic solution? 4. What is another word for a solid that is produced from the chemical reaction between two aqueous solu- tions?
Name Date Lab Instructor Report Sheet Experiment 7 Simple Chemical Reactions and Balancing Chemical Equation...
Name Date Lab Instructor Report Sheet Experiment 7 Simple Chemical Reactions and Balancing Chemical Equations and record the original state of all reactants in each reaction liquid, solid, crystal, gaseous, aqueous, color, odor, and so on. Reaction 1 CuCO,(s): Balance Equation: Observations: Cuco,(s) → Type of Reaction: Reaction 2 Fe(nail): CuSO4(aq): Balance Equation: Observations: Fe (s) + CuSO4(aq) → Type of Reaction: Reaction 3 Mg(strips): Balance Equation: Observations: Mg(s) + O2(g) → Type of Reaction: Na so.(aq) → Reaction 4...
Name TA Laboratory Date - Section Experiment 9-Post-lab Questions 1. Methanol (CH,OH) can be produced by...
Name TA Laboratory Date - Section Experiment 9-Post-lab Questions 1. Methanol (CH,OH) can be produced by the reaction of carbon monoxide (CO) with hydrogen (H). The balanced chemical reaction is: CÓg) + 2 H (8) -CH,OH() Suppose 14.0 g of carbon monoxide is reacted with 8.0 g of hydrogen. a. Which reactant is the limiting reagent? b. What is the theoretical yield for methanol? c. At the completion of the reaction, how many grams of the excess reagent will remain?...
50 Experiment 7 Types of Chemical Reactions QUESTIONS POST LAB I. In experiment #3, the manganese dioxide (MnO,) was added to the test tube containing hydrogen peroxide (H,O2) in order to speed up the reaction. What is the name given to a chemical that is added to a reaction in order to increase its rate? 2. Did you expect tap water to be acidic, basic or neither? Explain your answer. Neutralization reactions involve the hydrogen ions (H+) from an acid,...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a hydrochloric acid solution to produce hydrogen gas and a magnesium chloride solution. Another reaction that has a gaseous product is the reaction of a hydrochloric acid solution (HCl(ag)) with sodium sulfite (Na,so,(ag)) solution to produce a sodium chloride solution (NaCl(aq)) and gaseous sulfur dioxide (S0,(g)). Write a balanced chemical equation for this reaction. 2. The sulfur dioxide produced by aqueous chemistry in the previous...
CHEM 1405-Experiment 8: Chemical Reactions Section: Date: Name: Post-lab Questions Write balanced equations for each of the following reactions: gle replacement reaction between aluminum metal and aqueous nickel(II) chloride. (b) Single replacement reaction between calcium metal and hydrochloric acid. ⓒ Duble replacement and decomposition reaction between sodium, bicarbonate and acetic acid (Hin: double replacement firest, then carbonic acid decomposes into CO; and another product - 3 products in total 2 In each of the following changes, indicate whether the starting...
Lab 7: Types of Chemical Reactions Types of Chemical Reactions 3. The laboratory instructor gives yvou a test tube containing Ag Cu" ions. Dev 3. The laboratory instructor gives you a test tube containing Ba2, and each of these ions. Write a balanced reaction scheme that would allow you to selectively precipitate net ionic equation for each precipitation reaction.
Lab 7: Types of Chemical Reactions Types of Chemical Reactions 3. The laboratory instructor gives yvou a test tube containing Ag...
Hello, these are part of one question, please show work.
Data Sheet Chemical Reactions 2. Obtain and clean with sandpaper to expose the surface: 3 pieces of zine, 2 pieces of copper and 1 piece of lead. Place 6 test tubes in a rack and label each appropriately. Observe the contents of each of the test tubes for evidence of a reaction. Record your observations in the tables below TABLE 55 Observations Tube I: Copper strip and approximately 1 mL...
i
only need g, h and I please
Classifying Chemical Reactions continued Classifying Chemical Reactions continued 3. Write a balanced chemical equation for each reaction and classify the reaction. a. Copper metal heated with oxygen gives solid copper(II)oxide. 4 cu +02 → 2420 (5) combination reachon b. Mixing ammonium nitrate and sodium hydroxide solutions gives aqueous sodium nitrate, ammonia gas, and water. NHL NO2+ NaOH -> Na NO₃(aq) + NH₃ (9)+H₂O (e) double replacement c. Mercury(II) nitrate solution reacts with...
Experiment 6: A Series of Chemical Changes
Experiment A SERIES OF CHEMICAL CHANGES The After Thought ! Cross out the incorrect statements dealing with the notation and interpretation of chemical reactions. In a chemical reaction: - the notation symbolizes the starting substances and the substances produced as a chemical transformation is carried out - the Law of Conservation of Mass requires that the number of atoms of each element cannot change during the process - formulas of the reactants and...
Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions that are relevant to this lab. TO 2. List three observations that might suggest that a chemical reaction has occurred. 3. What observation would you expect to make when red litmus paper is exposed to a basic solution? 4. What is another word for a solid that is produced from the chemical reaction between two aqueous solu- tions?
Name Date Lab Instructor Report Sheet Experiment 7 Simple Chemical Reactions and Balancing Chemical Equations and record the original state of all reactants in each reaction liquid, solid, crystal, gaseous, aqueous, color, odor, and so on. Reaction 1 CuCO,(s): Balance Equation: Observations: Cuco,(s) → Type of Reaction: Reaction 2 Fe(nail): CuSO4(aq): Balance Equation: Observations: Fe (s) + CuSO4(aq) → Type of Reaction: Reaction 3 Mg(strips): Balance Equation: Observations: Mg(s) + O2(g) → Type of Reaction: Na so.(aq) → Reaction 4...
Name TA Laboratory Date - Section Experiment 9-Post-lab Questions 1. Methanol (CH,OH) can be produced by the reaction of carbon monoxide (CO) with hydrogen (H). The balanced chemical reaction is: CÓg) + 2 H (8) -CH,OH() Suppose 14.0 g of carbon monoxide is reacted with 8.0 g of hydrogen. a. Which reactant is the limiting reagent? b. What is the theoretical yield for methanol? c. At the completion of the reaction, how many grams of the excess reagent will remain?...
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