* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Word Equations • a summary
Chemical plant wikipedia , lookup
Electrolysis of water wikipedia , lookup
Nucleophilic acyl substitution wikipedia , lookup
Radical (chemistry) wikipedia , lookup
Catalytic reforming wikipedia , lookup
Chemical bond wikipedia , lookup
Fine chemical wikipedia , lookup
Chemistry: A Volatile History wikipedia , lookup
Enantioselective synthesis wikipedia , lookup
California Green Chemistry Initiative wikipedia , lookup
Multi-state modeling of biomolecules wikipedia , lookup
Determination of equilibrium constants wikipedia , lookup
Gas chromatography–mass spectrometry wikipedia , lookup
History of chemistry wikipedia , lookup
Marcus theory wikipedia , lookup
Chemical industry wikipedia , lookup
Asymmetric induction wikipedia , lookup
Chemical equilibrium wikipedia , lookup
Bioorthogonal chemistry wikipedia , lookup
Ring-closing metathesis wikipedia , lookup
Physical organic chemistry wikipedia , lookup
Process chemistry wikipedia , lookup
Metabolic network modelling wikipedia , lookup
Electrochemistry wikipedia , lookup
Isotopic labeling wikipedia , lookup
Strychnine total synthesis wikipedia , lookup
History of molecular theory wikipedia , lookup
Drug discovery wikipedia , lookup
Inorganic chemistry wikipedia , lookup
Organic chemistry wikipedia , lookup
Evolution of metal ions in biological systems wikipedia , lookup
Metalloprotein wikipedia , lookup
Rate equation wikipedia , lookup
George S. Hammond wikipedia , lookup
Click chemistry wikipedia , lookup
Chemical thermodynamics wikipedia , lookup
Hydrogen-bond catalysis wikipedia , lookup
Detailed balance wikipedia , lookup
Lewis acid catalysis wikipedia , lookup
Transition state theory wikipedia , lookup
Atomic theory wikipedia , lookup
IUPAC nomenclature of inorganic chemistry 2005 wikipedia , lookup
CHEMISTRY CHAPTER 6 Topic: 6.1 Word Equations 6.3 Conserving Mass HOMEWORK page 232 # 1-6 Note: Word Equations a summary of a chemical reaction using words shows the starting chemicals (reactants) and the new chemicals (products) reactants ------> products ex. magnesium + vinegar -------> hydrogen + magnesium acetate hydrogen + oxygen -------> water Complete the following: a) aluminum + __oxygen____ -----> aluminum oxide b) zinc + oxygen ----> ___zinc oxide_____ c) aluminum + copper chloride ---> copper + __aluminum chloride____ d) sodium sulfate + calcium chloride ---> calcium sulfate + ___sodium chloride____ Conservation of Mass The Law of Conservation of Mass – in a chemical reaction, the total mass of the reactants is always equal to the total mass of the products The number of each kind of atom does not change, the atoms are simply rearranged Use molecular building kits to look at the reaction of: Methane + CH4 oxygen + O2 water + carbon dioxide H2O + CO2 Lesson/Topic: 6.5 Balancing Chemical Equations Homework: worksheet and textbook page 236 # 1-7 Note: Balancing Chemical Reactions From two days ago, the conservation of mass states: the total mass of the reactants = total mass of the products Why? In any chemical reaction, atoms are neither created nor destroyed, just rearranged. Therefore, because of the conservation of mass, chemical equations are balanced when the number of each type of atom is the same on either side of the arrow sign. Balanced Chemical Equation: an equation in which the reactants and the products contain equal numbers of atoms of each type Coefficients: a number written in front of a chemical symbol or formula which indicates the number of atoms or molecules of that substance How to Balance an Equation 1. 2. 3. Count the number of atoms of each type in reactants and products (except O and H), then balance Count the number of atoms of O in reactants and products, then balance Count the number of atoms of H in reactants and products, then balance ex. H2 + O2 ----> H2O ex. Mg + O2 ---> MgO ex. Ca + CH3COOH ---> H2 + Ca(CH3COO)2 Lesson/ Topic: 6.7 Types of Chemical Reactions: Synthetic and Decomposition Lesson: Homework: p235 1-4 Note: Types of Reactions There are four major types of reactions and one sub-type 1. Synthesis Reactions Reactions which combine atoms and/or compounds into larger compounds. There are two or more reactants and only one product. General formula: X + Y XY eg 1 H2 + O2 2 H2O eg 2 MgO + H2O Mg(OH)2 eg 3 HCl + NH3 NH4Cl Try this…predict the product of this synthesis reaction: Al + O2 Al2O3 2. Decomposition Reactions Opposite of synthesis reactions. Reactions where compounds breakdown into elements or smaller compounds. There is only one reactant and two or more products. General formula: XY X + Y eg 1 H2O H2 + O2 eg 2 KClO3 KCl + O2 (balance) eg 3 NI3 N2 + I2 (balance) (balance) Try this…predict the product of this decomposition reaction: Ag2O Ag + O2 (balance this also) Lesson/Topic: 6.10 Types of Reactions: Single and Double Displacement Materials Needed: Lesson: Homework: p241 1-3 Note: Types of Reactions 3. Single Displacement Reactions Reactions in which one element “displaces” or replaces another in a compound. The general formula is an element reacting with a compound to produce a new element and a new compound. A metal (cation) can displace another metal (cation) or hydrogen: X + YZ Y + XZ eg. 1 Mg + ZnCl2 Zn + MgCl2 eg. 2 Mg + H2SO4 H2 + MgSO4 Try this…predict the product of this single displacement reaction: Cu + AgNO3 Cu(NO3)2 + Ag (balance) Another type of single displace reaction is where a nonmetal (anion) displaces another nonmetal (anion)- basically, the anions switch places. A2 + YB B2 + YA eg Cl2 + NaBr Br2 + NaCl 4. Double Displacement Reactions Reactions in which elements (or polyatomic ions) in different compounds “displace” each other by changing places. The general formula is for two compounds to react to produce two new compounds: WX + YZ WZ + YX eg. 1 AgNO3 + KI AgI + KNO3 eg. 2 Na2CO3 + CaCl2 NaCl + CaCO3 (balance) eg. 3 HCl + NaOH H2O + NaCl eg. 4 H2SO4 + NaOH H2O + Na2SO4 (balance) Try this…predict the product of these double displacement reactions: FeCl3 + NaOH Fe(OH)3 + NaCl HNO3 + KOH H2O + (balance) KNO3 PUTTING IT ALL TOGETHER…please complete the VOYAGE through Equations worksheet for added practice of these concepts and skills.