PPT-Chemical Formulas and Equations

NOTES MOLECULE A molecule is two or more atoms that have chemically combined Examples H 2 O amp 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 . Chemical Butyl Acetate Chemical Butylated Hydroxytoluene Chemical Coal ar Chemical Cocamide DEALauramide DEA Chemical Diazolidinyl Urea Chemical Ethyl Acetate Chemical Formaldehyde Chemical P http://www.youtube.com/watch?v=F54rqDh2mWA. Chemical Change v. Physical Change. Chemical Change . Break or form chemical bonds. Molecular formulas of the products are NOT exactly the same as the reactants. 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 . SECOND EDITION. Unit 1: ALCHEMY. Matter, Atomic Structure, and Bonding. Lesson 21: Salty Eights. Formulas for Ionic Compounds. ChemCatalyst. Find these cards in . Your Salty Eights . card deck.. 1. List the ionic compounds you can make with pairs of cards, using two different elements.. Parts of a chemical equation:. Reactants. : a substance present at the beginning of a chemical reaction. (Left side). Products. : a substance that is produced during a chemical reaction (Right Side). THE MOLE. Mole. -The . number of C atoms in exactly 12.0 g of carbon., also a number 6.022 x 10. 23. Avogadro’s number . 6.022 x 10. 23. , the number of . particles. in a mole of . anything. More on the mole later……. Recognize that chemical formulas are used to identify substances and determine the number of atoms of each element in chemical formulas containing subscripts.. Recognize whether a chemical equation containing coefficients is balanced or not and how that relates to the law of conservation of mass.. 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.. . 1. Describing a Chemical Reaction. A chemical reaction = the process by which one or more substances is changed into one or more different substance. s.. Reactants. = the original . substance(s. 10.1 . Reactions and . Equations. Evidence of Chemical Reactions. ..  . The process of which the atoms of one or more substances are rearranged to form different substances is called a . Chemical Reaction. General definitions. Mole. Homogeneous mixture. Heterogeneous mixture. Pure Substances. Compounds . Chemical Change . Chemical Property. Physical Change . Physical Property. Solid . Liquid . Gas. Evaporation. 23Provided FormulasThese formulas are available to exam candidates when taking the CFP Certication Examination Net ionic equations are useful in that they show only those chemical species directly . participating in . a chemical . reaction. The keys to being . able to . write net ionic equations are the ability to recognize monatomic and polyatomic ions, . 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.