2018 Specimen Paper 2 - Cambridge International Examinations
... 12 20 cm3 of ethyne, C2H2, are reacted with 500 cm3 of oxygen. The equation for the reaction is 2C2H2(g) + 5O2(g) ...
... 12 20 cm3 of ethyne, C2H2, are reacted with 500 cm3 of oxygen. The equation for the reaction is 2C2H2(g) + 5O2(g) ...
Chapter 8 Section 1 Describing Chemical Reactions
... C3H8 + 5O2 3CO2 + 4H2O Combustion of ethanol: CH3CH2OH + 3O2 2CO2 + 3H2O Synthesis Reactions • In a synthesis reaction a single compound forms from two or more reactants. • Two elements form a binary compound C + O2 CO2 2C + O2 2CO • Two compounds form a ternary compound CaO(s) + H2O(l) Ca( ...
... C3H8 + 5O2 3CO2 + 4H2O Combustion of ethanol: CH3CH2OH + 3O2 2CO2 + 3H2O Synthesis Reactions • In a synthesis reaction a single compound forms from two or more reactants. • Two elements form a binary compound C + O2 CO2 2C + O2 2CO • Two compounds form a ternary compound CaO(s) + H2O(l) Ca( ...
08 PowerPoint
... must show all reactants and products formulas must be correct Law of Conservation of Mass must be satisfied (equation must be balanced) ...
... must show all reactants and products formulas must be correct Law of Conservation of Mass must be satisfied (equation must be balanced) ...
CHEM102 Chemistry II Spring 11-12 Mid
... E) exothermic; neither positive nor negative 14) The function of a catalyst in a reaction system is to 14) ______ A) decrease the amount of energy consumed in the reaction. B) decrease the amount of reactants consumed. C) increase the rate of the reaction. D) decrease the amount of heat produced. E ...
... E) exothermic; neither positive nor negative 14) The function of a catalyst in a reaction system is to 14) ______ A) decrease the amount of energy consumed in the reaction. B) decrease the amount of reactants consumed. C) increase the rate of the reaction. D) decrease the amount of heat produced. E ...
Section 2 Types of Chemical Reactions Chapter 8
... The coefficients of a chemical reaction indicate relative, not absolute, amounts of reactants and products. H2(g) + Cl2(g) 2HCl(g) 1 mole H2 : 1 mole Cl2 : 2 moles HCl ...
... The coefficients of a chemical reaction indicate relative, not absolute, amounts of reactants and products. H2(g) + Cl2(g) 2HCl(g) 1 mole H2 : 1 mole Cl2 : 2 moles HCl ...
CHAPTER 10 - NUCLEAR PHYSICS
... law was provided by the discovery of the law of multiple proportions. It states that any time two elements form two or more compounds, the mass ratio of any one element in identical samples of the two compounds will be two small whole numbers. Example ...
... law was provided by the discovery of the law of multiple proportions. It states that any time two elements form two or more compounds, the mass ratio of any one element in identical samples of the two compounds will be two small whole numbers. Example ...
CH225h - Oregon State chemistry
... 4. Describe 2 experimental conditions that will maximize the yield of ammonia that is prepared by the exothermic reaction of N2 and H2. Explain your answers. N2 (g) + 3 H2 (g) = 2 NH3 (g) ...
... 4. Describe 2 experimental conditions that will maximize the yield of ammonia that is prepared by the exothermic reaction of N2 and H2. Explain your answers. N2 (g) + 3 H2 (g) = 2 NH3 (g) ...
Equilibrium Reactions
... Write equilibrium expressions for these reactions: a) 2O3 (g) 3O2 (g) b) H2 (g) + F2 (g) 2HF(g) ...
... Write equilibrium expressions for these reactions: a) 2O3 (g) 3O2 (g) b) H2 (g) + F2 (g) 2HF(g) ...
Chemical reactions
... • Ionic - lacking discrete unit, or molecule • Composed of both metallic and nonmetallic elements • Electronegativity difference > 1.7 ...
... • Ionic - lacking discrete unit, or molecule • Composed of both metallic and nonmetallic elements • Electronegativity difference > 1.7 ...
S2-2-07 - Classifying Chemical Reactions
... two couples at a dance switching partners – you may need to prompt). This would be called a double displacement reaction. Explain reaction type using general formula from notes. Think of other analogies for this type of reaction and fill in notes sheet. Teacher’s analogy: Blackeye + Pinkpanther Bl ...
... two couples at a dance switching partners – you may need to prompt). This would be called a double displacement reaction. Explain reaction type using general formula from notes. Think of other analogies for this type of reaction and fill in notes sheet. Teacher’s analogy: Blackeye + Pinkpanther Bl ...
Learning Outcomes
... and copper atoms. These exceptions are due to special stability associated with all the d orbitals being half filled or completely filled. When transition metals form ions it is the s electrons which are lost first rather than the d electrons. ...
... and copper atoms. These exceptions are due to special stability associated with all the d orbitals being half filled or completely filled. When transition metals form ions it is the s electrons which are lost first rather than the d electrons. ...
Chemistry 11 - Sardis Secondary
... - calculating the amount of excess reactant - calculating the amount of product formed in a reaction using the limiting reactant C. Percent Yield (text pgs. 365-373) - calculating the efficiency of a chemical reaction from percent yield ...
... - calculating the amount of excess reactant - calculating the amount of product formed in a reaction using the limiting reactant C. Percent Yield (text pgs. 365-373) - calculating the efficiency of a chemical reaction from percent yield ...
7.4 Acids and bases
... It is important to note that acids are non-metal compounds which contain covalent bonding. Therefore they must ionise to produce hydrogen ions. Some acids will ionise completely and 100% of their hydrogens become ions. These are called strong acids. In a solution of strong acid there is no acid mole ...
... It is important to note that acids are non-metal compounds which contain covalent bonding. Therefore they must ionise to produce hydrogen ions. Some acids will ionise completely and 100% of their hydrogens become ions. These are called strong acids. In a solution of strong acid there is no acid mole ...
ch5_f08
... dissolved in an acidic solution and converted to iron(II) ion. When titrated with 0.100 M potassium permanganate the iron was oxidized to iron(III) and the permanganate to manganese dioxide. The titration required 27.45 ml of permanganate solution to reach the endpoint. What was the percent by mass ...
... dissolved in an acidic solution and converted to iron(II) ion. When titrated with 0.100 M potassium permanganate the iron was oxidized to iron(III) and the permanganate to manganese dioxide. The titration required 27.45 ml of permanganate solution to reach the endpoint. What was the percent by mass ...
PP - Columbia University
... This combination of one qualitative and one quantitative (driving) term tell the direction of a chemical reaction in any particular circumstance ...
... This combination of one qualitative and one quantitative (driving) term tell the direction of a chemical reaction in any particular circumstance ...
Predicting Products online assistance #3
... Most chemical reactions can be classified into four major types: 1. synthesis - two reactants combine to form one product 2. decomposition - one reactant decomposes, or breaks apart, into two or more products. 3. single replacement - an element replaces another in a compound. 4. double replacement - ...
... Most chemical reactions can be classified into four major types: 1. synthesis - two reactants combine to form one product 2. decomposition - one reactant decomposes, or breaks apart, into two or more products. 3. single replacement - an element replaces another in a compound. 4. double replacement - ...
Rxn Pred students
... These metals can change their oxidation state in a redox reaction Antimony (III) or (V) Bismuth (III) or (IV) Cerium (III) or (IV) Chromium (II) or (III) Cobalt (II) or (III) Copper (I) or (II) Gallium (I) or (II) or (III) Germanium (II) or (IV) Gold (I) or (III) Iron (II) or (II ...
... These metals can change their oxidation state in a redox reaction Antimony (III) or (V) Bismuth (III) or (IV) Cerium (III) or (IV) Chromium (II) or (III) Cobalt (II) or (III) Copper (I) or (II) Gallium (I) or (II) or (III) Germanium (II) or (IV) Gold (I) or (III) Iron (II) or (II ...
Nature of chemical reaction - Environmental-Chemistry
... AX + BY AY + BX • The reaction in which a gas, a solid precipitate, or a molecular compound is formed from the apparent exchange of atoms or ions between two compounds. • Pb(NO3)2 + 2 KI PbI2 + 2K(NO3) • Lead nitrate + Potassium iodide -- Lead iodide + Potassium nitrate • In general ions appear ...
... AX + BY AY + BX • The reaction in which a gas, a solid precipitate, or a molecular compound is formed from the apparent exchange of atoms or ions between two compounds. • Pb(NO3)2 + 2 KI PbI2 + 2K(NO3) • Lead nitrate + Potassium iodide -- Lead iodide + Potassium nitrate • In general ions appear ...
Reaction types and Stoichiometry
... 19. Which of the following is the balanced chemical equation for the reaction shown above? A Al + H2SO4 Al2(SO4)3 + H2 B 2Al + 3H2SO4 Al2(SO4)3 + 3H2 _ C 2Al + 3H2SO4 Al2(SO4)3 + H2 D 2Al + H2SO4 Al2(SO4)3 + H2 20. Which of these is the general formula for a double-replacement reaction? A B ...
... 19. Which of the following is the balanced chemical equation for the reaction shown above? A Al + H2SO4 Al2(SO4)3 + H2 B 2Al + 3H2SO4 Al2(SO4)3 + 3H2 _ C 2Al + 3H2SO4 Al2(SO4)3 + H2 D 2Al + H2SO4 Al2(SO4)3 + H2 20. Which of these is the general formula for a double-replacement reaction? A B ...
Chemical Equations
... Reaction Types: Synthesis or Composition • Synthesis are, at this introductory level, almost always the reverse of a decomposition reaction. That means that two pieces join together to produce one, a more complex compound. These pieces can be elements or simpler compounds. • A + B ---> AB Reaction ...
... Reaction Types: Synthesis or Composition • Synthesis are, at this introductory level, almost always the reverse of a decomposition reaction. That means that two pieces join together to produce one, a more complex compound. These pieces can be elements or simpler compounds. • A + B ---> AB Reaction ...
Endothermic reactions
... called exergonic (ek sur GAH nihk) reactions. In these reactions, less energy is required to break the original bonds than is released when new bonds are formed. As a result, some form of energy, such as light or heat, is given off by the reaction. The familiar glow from the reaction inside a glow s ...
... called exergonic (ek sur GAH nihk) reactions. In these reactions, less energy is required to break the original bonds than is released when new bonds are formed. As a result, some form of energy, such as light or heat, is given off by the reaction. The familiar glow from the reaction inside a glow s ...
Ch. 8 Sections 8.1-8.3 Powerpoint
... •Any diatomic (two-atom) molecule that has a polar bond will show a molecular dipole moment. •In other words, if there is a difference in electronegativity between the two atoms the molecule is polar. ...
... •Any diatomic (two-atom) molecule that has a polar bond will show a molecular dipole moment. •In other words, if there is a difference in electronegativity between the two atoms the molecule is polar. ...
Chapter 17 - saddlespace.org
... Chemical kinetics: study of reaction rates and reaction mechanisms Reaction rate: the change in the concentration of REACTANTS per unit of time. Since the nature of reactant collisions determine how often reactions occur, changing the frequency and energy of these collisions will change reaction rat ...
... Chemical kinetics: study of reaction rates and reaction mechanisms Reaction rate: the change in the concentration of REACTANTS per unit of time. Since the nature of reactant collisions determine how often reactions occur, changing the frequency and energy of these collisions will change reaction rat ...
General Chemistry First Semester Review General
... (a) 32,500 g = ? kg (b) 100 g = ? mg (c) 2.1 inches = ? Km (1” = 2.54 cm) 5. Sketch and label the location and charges of the subatomic particles in an atom of oxygen-15. 6. What physical properties distinguish metals from nonmetals? 7. Elemental oxygen forms diatomic molecules (O2). Draw a Lewis st ...
... (a) 32,500 g = ? kg (b) 100 g = ? mg (c) 2.1 inches = ? Km (1” = 2.54 cm) 5. Sketch and label the location and charges of the subatomic particles in an atom of oxygen-15. 6. What physical properties distinguish metals from nonmetals? 7. Elemental oxygen forms diatomic molecules (O2). Draw a Lewis st ...