REDOX EQUILIBRIA SL - chemistryatdulwich
... XCl (aq) + Y (s) NaY (aq) + X If the reaction above is feasible than Y is more reactive than X as it is a better reducing agent. It loses its electrons more readily. You are already familiar with some parts of this series which is called the reactivity series: ...
... XCl (aq) + Y (s) NaY (aq) + X If the reaction above is feasible than Y is more reactive than X as it is a better reducing agent. It loses its electrons more readily. You are already familiar with some parts of this series which is called the reactivity series: ...
Exam 2
... C. decrease at both electrodes. D. increase at both electrodes. Question 7 The energy released in a chemical reaction is directly converted to electrical energy in a A. solar cell. B. electrolytic cell. C. fossil-fuel power station. D. hydrogen/oxygen fuel cell. Question 8 The cell reaction when a c ...
... C. decrease at both electrodes. D. increase at both electrodes. Question 7 The energy released in a chemical reaction is directly converted to electrical energy in a A. solar cell. B. electrolytic cell. C. fossil-fuel power station. D. hydrogen/oxygen fuel cell. Question 8 The cell reaction when a c ...
Class Notes
... ions” because they do not participate in the overall reaction – the main chemical change. In describing the main reaction that takes place in a reaction, the spectator ions are left out. Just like in math, anything that is the same on both sides is cancelled. This leaves you with the “net ionic equa ...
... ions” because they do not participate in the overall reaction – the main chemical change. In describing the main reaction that takes place in a reaction, the spectator ions are left out. Just like in math, anything that is the same on both sides is cancelled. This leaves you with the “net ionic equa ...
Problem 1: “A brief history” of life in the universe
... (Search the Internet or other sources.) To remove oxygen and prepare pure nitrogen, Rayleigh used a method recommended by Ramsay. Air was bubbled through liquid ammonia and was passed through a tube containing copper at red heat where the oxygen of the air was consumed by hydrogen of the ammonia. Ex ...
... (Search the Internet or other sources.) To remove oxygen and prepare pure nitrogen, Rayleigh used a method recommended by Ramsay. Air was bubbled through liquid ammonia and was passed through a tube containing copper at red heat where the oxygen of the air was consumed by hydrogen of the ammonia. Ex ...
Problem 1: “A brief history” of life in the universe
... (Search the Internet or other sources.) To remove oxygen and prepare pure nitrogen, Rayleigh used a method recommended by Ramsay. Air was bubbled through liquid ammonia and was passed through a tube containing copper at red heat where the oxygen of the air was consumed by hydrogen of the ammonia. Ex ...
... (Search the Internet or other sources.) To remove oxygen and prepare pure nitrogen, Rayleigh used a method recommended by Ramsay. Air was bubbled through liquid ammonia and was passed through a tube containing copper at red heat where the oxygen of the air was consumed by hydrogen of the ammonia. Ex ...
Problem 1: A brief history of life in the universe
... (Search the Internet or other sources.) To remove oxygen and prepare pure nitrogen, Rayleigh used a method recommended by Ramsay. Air was bubbled through liquid ammonia and was passed through a tube containing copper at red heat where the oxygen of the air was consumed by hydrogen of the ammonia. Ex ...
... (Search the Internet or other sources.) To remove oxygen and prepare pure nitrogen, Rayleigh used a method recommended by Ramsay. Air was bubbled through liquid ammonia and was passed through a tube containing copper at red heat where the oxygen of the air was consumed by hydrogen of the ammonia. Ex ...
Energy of Reactions
... Energy is the ability to do work or produce heat There is potential and kinetic energy Energy can neither be created or destroyed Every compound needs energy to increase temperature or to change from one state of matter to another ...
... Energy is the ability to do work or produce heat There is potential and kinetic energy Energy can neither be created or destroyed Every compound needs energy to increase temperature or to change from one state of matter to another ...
Solution - gearju.com
... Titrations In a titration, a solution of accurately known concentration is added gradually added to another solution of unknown concentration until the chemical reaction between the two solutions is complete. Equivalence point – the point at which the reaction is complete Indicator – substance that ...
... Titrations In a titration, a solution of accurately known concentration is added gradually added to another solution of unknown concentration until the chemical reaction between the two solutions is complete. Equivalence point – the point at which the reaction is complete Indicator – substance that ...
QUESTION
... Gas Laws – 50 Points QUESTION: A gas is confined in a steel tank. At 10.30°C, the gas exerts a pressure of 9.532 atm. After heating the tank, the pressure of the gas increases to 11.606 atm. What is the temperature of the heated gas? ANSWER: ...
... Gas Laws – 50 Points QUESTION: A gas is confined in a steel tank. At 10.30°C, the gas exerts a pressure of 9.532 atm. After heating the tank, the pressure of the gas increases to 11.606 atm. What is the temperature of the heated gas? ANSWER: ...
Reactions of Metals and Their Compounds
... electrons to the sea, they are positively charged (why?). The positive metal IONS are attracted to the negative electrons = METALLIC BONDING. ...
... electrons to the sea, they are positively charged (why?). The positive metal IONS are attracted to the negative electrons = METALLIC BONDING. ...
Homework,1 Atoms, molecules, and ions
... 8- Which of the following quantities ( heat, work, enthalpy, internal energy) depend only on the end points and not on the path followed in a process? a) heat b) work c) enthalpy and internal energy d) enthalpy e) internal energy 9- When 0.215 mol NH3 is formed from nitrogen and hydrogen, 9.91 kJ of ...
... 8- Which of the following quantities ( heat, work, enthalpy, internal energy) depend only on the end points and not on the path followed in a process? a) heat b) work c) enthalpy and internal energy d) enthalpy e) internal energy 9- When 0.215 mol NH3 is formed from nitrogen and hydrogen, 9.91 kJ of ...
1 - Cathedral High School
... Cross reference with topics 2, 4 and 5. Data for all these properties are listed in the data booklet. Explanations for the first four trends should be given in terms of the balance between the attraction of the nucleus for the electrons and the repulsion between electrons. Explanations based on effe ...
... Cross reference with topics 2, 4 and 5. Data for all these properties are listed in the data booklet. Explanations for the first four trends should be given in terms of the balance between the attraction of the nucleus for the electrons and the repulsion between electrons. Explanations based on effe ...
Mr. Dehne AP Chem Name: ___________ Date: Per#: ___ AP
... 34. Saccharin (C7H5NO3S) is sometimes dispensed in tablet form. Ten tablets with a total mass of 0.5894g were dissolved in water. They were oxidized to convert all of the sulfur to sulfate ion, which was precipitated by adding an excess of barium chloride solution. The mass of BaSO4 obtained was 0.5 ...
... 34. Saccharin (C7H5NO3S) is sometimes dispensed in tablet form. Ten tablets with a total mass of 0.5894g were dissolved in water. They were oxidized to convert all of the sulfur to sulfate ion, which was precipitated by adding an excess of barium chloride solution. The mass of BaSO4 obtained was 0.5 ...
chapter i states of matter - myweb
... majority of chemical reactions are reversible only to some extent) and they always result in a change of a substance to a new one having different properties. An example of an irreversible chemical change is decomposition of water causing the molecules to break apart and form hydrogen and oxygen, tw ...
... majority of chemical reactions are reversible only to some extent) and they always result in a change of a substance to a new one having different properties. An example of an irreversible chemical change is decomposition of water causing the molecules to break apart and form hydrogen and oxygen, tw ...
Related concepts Concentration cells without transport
... positive pole in a galvanic cell. The processes which take place at the cathode are always reductions. Cations are deposited, non-metals go into solution as anions, oxidizing agents are reduced. The anode is the electrode with the smaller potential. It is the negative pole in a galvanic cell. The pr ...
... positive pole in a galvanic cell. The processes which take place at the cathode are always reductions. Cations are deposited, non-metals go into solution as anions, oxidizing agents are reduced. The anode is the electrode with the smaller potential. It is the negative pole in a galvanic cell. The pr ...
Honors Chemistry / SAT II
... 2486. The colors of the spectral emission lines produced by the gas in a discharge tube are determined by the (A) applied voltage (D) temperature of the gas (B) pressure of the gas (E) applied current (C) gas used in the tube 2989. Which of the following statements are true? I. The energy of electro ...
... 2486. The colors of the spectral emission lines produced by the gas in a discharge tube are determined by the (A) applied voltage (D) temperature of the gas (B) pressure of the gas (E) applied current (C) gas used in the tube 2989. Which of the following statements are true? I. The energy of electro ...
CONDUCTOMETRY
... renewed, this eliminates the poisoning effect. Mercury forms amalgams (solid solution) with many metals. The diffusion current assumed a steady value immediately after each change of applied potential and is reproducible. The large hydrogen over-potential of mercury renders possible deposition of ...
... renewed, this eliminates the poisoning effect. Mercury forms amalgams (solid solution) with many metals. The diffusion current assumed a steady value immediately after each change of applied potential and is reproducible. The large hydrogen over-potential of mercury renders possible deposition of ...
General Chemistry Stoichiometry Notes
... Open up the filter paper containing your product and transfer as much of the copper hydroxide as you can into the large beaker. Put the filter paper in too. Add 100 ml of distilled water. Put the large beaker on the hot plate and heat to a gentle boil. Use forceps to remove the filter paper Use the ...
... Open up the filter paper containing your product and transfer as much of the copper hydroxide as you can into the large beaker. Put the filter paper in too. Add 100 ml of distilled water. Put the large beaker on the hot plate and heat to a gentle boil. Use forceps to remove the filter paper Use the ...
2 (aq)
... • Many important reactions take place in water—that is in aqueous solution – When in solution, many ionic compounds (called strong electrolytes) will ionize splitting into their constitute ions • Weak electrolytes are ionic compounds that are only slightly soluble in water and when formed in water p ...
... • Many important reactions take place in water—that is in aqueous solution – When in solution, many ionic compounds (called strong electrolytes) will ionize splitting into their constitute ions • Weak electrolytes are ionic compounds that are only slightly soluble in water and when formed in water p ...
I. Properties of Matter
... 10. States of matter: the physical forms in which all matter naturally exists on Earth a. Solid – has definite shape and volume b. Liquid – flows, has constant volume, takes the shape of its container c. Gas – flows, takes the shape of its container, fills entire volume of its container ...
... 10. States of matter: the physical forms in which all matter naturally exists on Earth a. Solid – has definite shape and volume b. Liquid – flows, has constant volume, takes the shape of its container c. Gas – flows, takes the shape of its container, fills entire volume of its container ...
physical setting chemistry
... 62 In the space in your answer booklet, draw a structural formula for the organic product. [1] 63 Explain, in terms of collision theory, why the rate of the reaction would decrease if the temperature of the reaction mixture was lowered to 200.°C with pressure remaining unchanged. [1] ...
... 62 In the space in your answer booklet, draw a structural formula for the organic product. [1] 63 Explain, in terms of collision theory, why the rate of the reaction would decrease if the temperature of the reaction mixture was lowered to 200.°C with pressure remaining unchanged. [1] ...
Electrolysis of water
Electrolysis of water is the decomposition of water (H2O) into oxygen (O2) and hydrogen gas (H2) due to an electric current being passed through the water.This technique can be used to make hydrogen fuel (hydrogen gas) and breathable oxygen; though currently most industrial methods make hydrogen fuel from natural gas instead.