Unit 10
... Extracting metal – getting metal from ores. What are the metal compounds from mineral ores? Are they soluble in water? Insoluble metal oxides, carbonates and sulphides – found in ores Which metals are found free in nature? Unreactive metals such as gold and platinum found free (as elements) in natur ...
... Extracting metal – getting metal from ores. What are the metal compounds from mineral ores? Are they soluble in water? Insoluble metal oxides, carbonates and sulphides – found in ores Which metals are found free in nature? Unreactive metals such as gold and platinum found free (as elements) in natur ...
1. When the reaction Cu + HNO3 → Cu2+ + NO + H2O is balanced
... 50. In an electrolysis experiment 1.44 g of Ag was deposited from an aqueous AgNO3 solution, while 0.120 g of the metal X was deposited in another cell that contains aqueous XCl3 (connected in series with the AgNO3 cell.) The molar mass of X is –––– g/mol. A) 63.3 B) 108 C) 27.0 D) 31.8 ...
... 50. In an electrolysis experiment 1.44 g of Ag was deposited from an aqueous AgNO3 solution, while 0.120 g of the metal X was deposited in another cell that contains aqueous XCl3 (connected in series with the AgNO3 cell.) The molar mass of X is –––– g/mol. A) 63.3 B) 108 C) 27.0 D) 31.8 ...
Bal Equations notes.cwk (WP)
... Example: Sodium arsenide solution is mixed with calcium chloride solution to produce a solution of sodium chloride and a calcium arsenide solid. _Na3As (aq)+_CaCl2 (aq)-->_NaCl (aq) +_Ca3As2 (s) You may start with any element or complex ion you like, however it may be easier to start with the greate ...
... Example: Sodium arsenide solution is mixed with calcium chloride solution to produce a solution of sodium chloride and a calcium arsenide solid. _Na3As (aq)+_CaCl2 (aq)-->_NaCl (aq) +_Ca3As2 (s) You may start with any element or complex ion you like, however it may be easier to start with the greate ...
chapter 5 - chemical reactions
... How to write and balance equations? 1. All reactants and products of a reaction must be known before attempting to write an equation. 2. Identify the reactants and products and write their chemical symbols or formulas CORRECTLY. 3. Indicate the state of substances: (g) for gas, (l) for liquid, (s) f ...
... How to write and balance equations? 1. All reactants and products of a reaction must be known before attempting to write an equation. 2. Identify the reactants and products and write their chemical symbols or formulas CORRECTLY. 3. Indicate the state of substances: (g) for gas, (l) for liquid, (s) f ...
Chemistry2 Midterm Review 2012 – Tuesday
... 52. What is specific heat capacity? Water has a high specific heat capacity of 4.884 J/g·C. What does that mean about water? 53. Draw a potential energy diagram for the following reaction: N2 + 3H2 2NH3 ΔH = -91.8 kJ Include a labeled y-axis, reactants, products, activated complex, and change in e ...
... 52. What is specific heat capacity? Water has a high specific heat capacity of 4.884 J/g·C. What does that mean about water? 53. Draw a potential energy diagram for the following reaction: N2 + 3H2 2NH3 ΔH = -91.8 kJ Include a labeled y-axis, reactants, products, activated complex, and change in e ...
CHEMISTRY A
... Explain why the atom economy of this cyclohexene preparation is higher than that from cyclohexanol in (c). ...
... Explain why the atom economy of this cyclohexene preparation is higher than that from cyclohexanol in (c). ...
chemical equilibrium
... Only a very small fraction of the collisions between H2 and I2 result in the formation of HI. As more HI molecules are made, they collide more often and form H2 and I2 by the reverse reaction. ...
... Only a very small fraction of the collisions between H2 and I2 result in the formation of HI. As more HI molecules are made, they collide more often and form H2 and I2 by the reverse reaction. ...
Chemistry FINAL: CONTENT Review Packet
... _________________ are substances that are made up of two or more elements which are chemically combined _______________________is made from two or more substances that are physically combined The ability to do work is known as ________________ ________________________ are substances that are made up ...
... _________________ are substances that are made up of two or more elements which are chemically combined _______________________is made from two or more substances that are physically combined The ability to do work is known as ________________ ________________________ are substances that are made up ...
Production of Materials by Jimmy Huang
... dissolve polar substances due to the powerful hydrogen bonding. For these properties, ethanol is widely used in cosmetics, food colouring, antiseptics and cleaning agents. Ethanol As A Renewable Resource and a Fuel Ethanol is a liquid and burns readily, and has therefore been proposed as an alternat ...
... dissolve polar substances due to the powerful hydrogen bonding. For these properties, ethanol is widely used in cosmetics, food colouring, antiseptics and cleaning agents. Ethanol As A Renewable Resource and a Fuel Ethanol is a liquid and burns readily, and has therefore been proposed as an alternat ...
AQA C2 revision book
... Manufacture of sulphuric acid. Most of these catalysts are solid substances, used to catalyse reactions between gases. They do this by allowing the gas molecules to collect on their surface where they are close enough to react quickly. Catalysts are very valuable in chemical industry, since they can ...
... Manufacture of sulphuric acid. Most of these catalysts are solid substances, used to catalyse reactions between gases. They do this by allowing the gas molecules to collect on their surface where they are close enough to react quickly. Catalysts are very valuable in chemical industry, since they can ...
Chapter 4 Packet
... reactive). You do not have to memorize the activity series. But, you should memorize the following general trends: ...
... reactive). You do not have to memorize the activity series. But, you should memorize the following general trends: ...
Masterton and Hurley Chapter 4
... Strong and Weak Acids and Bases • Strong acids ionize completely to H+ • HCl (aq) → H+ (aq) + Cl- (aq) • In a solution of 1.0 M HCl, there is 1M H+ and 1M Cl• No HCl is left un-ionized • Other strong acids ionize in similar fashion ...
... Strong and Weak Acids and Bases • Strong acids ionize completely to H+ • HCl (aq) → H+ (aq) + Cl- (aq) • In a solution of 1.0 M HCl, there is 1M H+ and 1M Cl• No HCl is left un-ionized • Other strong acids ionize in similar fashion ...
High School Chemistry
... b. Using the periodic table, predict the charge an atom will acquire when it forms an ion by gaining or losing electrons. c. Compare covalent and ionic bonds with respect to electron behavior and relative bond strengths. d. Diagram a model of a metallic bond and explain how it differs from ionic an ...
... b. Using the periodic table, predict the charge an atom will acquire when it forms an ion by gaining or losing electrons. c. Compare covalent and ionic bonds with respect to electron behavior and relative bond strengths. d. Diagram a model of a metallic bond and explain how it differs from ionic an ...
Lecture 20 The Redox Sequence
... There is an ideal sequence of redox reactions driven by e- rich organic matter that is based on the energy available for the microbes that mediate the reactions. In this sequence organic matter is combusted in order by O2 → NO3 → MnO2 → Fe2O3 → SO42- (decreasing energy yield). Most of these reaction ...
... There is an ideal sequence of redox reactions driven by e- rich organic matter that is based on the energy available for the microbes that mediate the reactions. In this sequence organic matter is combusted in order by O2 → NO3 → MnO2 → Fe2O3 → SO42- (decreasing energy yield). Most of these reaction ...
Development of Novel Catalytic Asymmetric Reactions using
... β-ketoesters.13 In this article, results in the case of N-Boc imine are disucussed in Table 1. Due to the imine activation by protic acid, the reaction is dramatically accelerated compared to the case of Michael addition. In many cases, the reactions were completed within several hours. β-Aminocarbo ...
... β-ketoesters.13 In this article, results in the case of N-Boc imine are disucussed in Table 1. Due to the imine activation by protic acid, the reaction is dramatically accelerated compared to the case of Michael addition. In many cases, the reactions were completed within several hours. β-Aminocarbo ...
