PPT-CHEMICAL EQUATIONS & REACTION STOICHIOMETRY

symbolic representation of a chemical reaction that shows reactants on left side of reaction products on right side of equation relative amounts of each with stoichiometric coefficients. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 9. 1. Today’s lecture. Membrane Reactors: . Used for Thermodynamically Limited Reactions. I can identify the products and reactants in a chemical reaction.. I can state the law of conservation of matter.. I can determine the number of each atom in a compound based on subscripts and coefficients.. and . Thermochemical. . Reactions. the energy of a reaction is directly related to the quantity of products. if 28.4 kJ of energy is required to melt 1 mol of . NaCl. at its melting point then it would require twice that amount (56.8 kJ) to melt 2 mol of . Theme: . Changes and Reactions . LecturePLUS Timberlake. 2. color. melting point. boiling point. electrical conductivity. specific heat. density . state (solid, liquid, or gas). . NOTES. MOLECULE. A . molecule. is . two . or more atoms that have chemically . combined.. Examples. : . H. 2. O. & O. 2. CHEMICAL FORMULA. A . Chemical Formula . is a description of the number and kind of atoms found in a single molecule of a substance, using the . (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 9. 1. Lecture 9 – Thursday 2/3/2011. Membrane Reactors: . (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 9. 1. Lecture 9. . – . Thursday 2/7/2013. 2. Balances in terms of molar flow rates. It’s a process that allows us to mathematically convert and calculate the relationships between the amount of reactants and products in a chemical reaction.. Graphical representation . Example: . for every O2 molecule,. In a chemical reaction the total mass of everything at the end of the reaction is the same as the total mass at the beginning.. The Law of Constant Composition. However you make a compound, it always contains the same elements in the same proportions by mass.. Ionic compounds can form from transition metals. Transition metals do not always follow the patterns that we discussed. Can have more than one oxidation number (charge. ). To identify the charges of transition metals, roman numerals are placed in their name, directly after the transition metal. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 4. Lecture 4. 2. Block 1. Mole Balances. Size CSTRs and PFRs given –. I. Percent Composition. Think about this:. How would you find the percent of boys in our class?. # of boys (part)____. x 100% . Total # of students (whole). I. Percent Composition. . wwwmojesnetUnderstanding of Macroscopic Microscopic and Symbolic Representations Among Form Four Students in Solving Stoichiometric Problems Kamariah Binti Sujak 1 Esther Gnanamalar Sarojini Daniel 2 Chemical . Formulas. Chemical formula . - A shorthand notation for a compound or diatomic element.. Shows the elements and how many atoms of each element are in the compound/molecule.. C. 6 . H. 12. O.