PPT-Stoichiometry with Chemical Reactions

Stoichiometry Unit Objectives Solve reaction stoichiometry problems Mole Mole Mass Mole MassMass Mass Volume Introduction In any stoichiometry problem we start with a given quantity of a reactant or product We use conversion factors and unit analysis to determine the quantities of the unknowns that react or form. Physical Science Notes. Physical Properties. PHYSICAL PROPERTY . - A feature or characteristic of matter which can be observed without changing the identity of the matter . Examples. :. . . Color. Chemical change. . Reactions with acid. . Reactions with oxygen . 7F. 7F Simple chemical reactions. Chemical change. . 7F Simple chemical reactions. 7F Chemical change – Changing materials. How many different materials can you see in this bedroom?. Gas Stoichiometry. Recall:. The law . of combining volumes . W. hen . gases react, the volumes of the reactants and products react in whole. -number . ratios if the temperatures and pressures are constant. . Lecture 3 Topics. . Brown. , chapter 3. 1. Moles. . . 3.4. Molecular mass (aka . molecular . weight) . . 3.3. 2. Molar . converstions. Percent composition . 3.3. Empirical formulas . Synthesis reactions. Decomposition reactions. Single replacement reactions. Double replacement reactions. (Precipitate reaction). Chemical Reactions can be written as:. Word equation. Chemical equation. Guiding Questions. How are dosages determined? . How are toxins measured and controlled?. . Which is better: eating beans and rice at separate meals . or together?. . Table of Contents. ‘Stoichiometry’. Add the new notes to your . table of contents. , and then turn to the next clean page and set up your title and date. Tape the two slides into your INB flat down, directly under your title - they do not need to flip up. By: Abby . Marstiller. , Paulina . Pullin. , Emily . Henline. What is a chemical reaction?. A chemical reaction involves the making or breaking of bonds between atoms. . The total number of atoms remains the same but the combinations are different. . Chemical Reactions. :. A . chemical reaction . is a process that changes one set of chemicals into another by rearranging chemical bonds. The elements you start with are . reactants. The elements you end with are . Chemical Reactions. A . chemical reaction . is a process that changes, or transforms, one set of chemicals into another by changing the chemical bonds that join atoms in compounds. . @Mass and energy are conserved during chemical transformations.@. THINK ABOUT IT . Living things are made up of chemical compounds, but chemistry isn’t just what life is made . of—chemistry is also what life does. . . Everything that happens in an organism. —its growth, its interaction with the environment, its reproduction, and even its movement. Changes or transforms chemicals into . other. chemicals. Ex: Iron + Oxygen . . Iron Oxide (rust). Physical Science Review. What is the product?. What are the reactants?. Chemical formula. . shows the kind and proportion of atoms of each element that occurs in a particular compound. Synthesis Reaction. – combines two or more simpler reactants to form new, more complex products. .. N. N. O. O. O. O. N. 2. +. 2O. 2. 2NO. 2. +. Nitrogen. Oxygen. Nitrogen Dioxide. Simple to complex. Writing and balancing Chemical Equation. Classifying Chemical Reactions:. Precipitation Reactions. Acid-base Reactions. Decomposition Reactions (nonredox). Oxidation-Reduction Reactions. Reaction Stoichiometry.