PPT-Balancing Chemical Formulas

This tutoring session is designed to help anyone who is struggling balancing equations Remember Matter can never be created nor can it be destroyed Theory of conservation of matter This means that whatever elements go into a chemical equation Reactants must also come out of the chemical equation Products. Formulas. Chemical Formulas represent compounds.. Oxidation Numbers are used to determine the ratio in which elements combine to form compounds.. Understanding Chemical. Formulas. Chemical formulas are composed of a . Do Now: from last years regents. Chemical Formulas. Tell . type. & . number. atoms in compound. Microscopic level: . Formula gives atom ratios. Macroscopic level: . Formula gives mole ratios. EXAMPLE. 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. 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.. 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.. Equations, and Reactions. Chemical Change:. Occurs when one or more substances are changed into new substances with different properties; cannot be undone by physical means. Chemical Change is:. Chemical Change is not:. Simple Ionic Compounds. Concept:. Ionic Formulas are formed from positive and negative ions.. Fact 1:. Positive ions are formed by metals that lost electrons.. Examples: Na. 1+. Mg. 2+. A. 3+. :. 106. 5. th. 6 Weeks Test Review. 107. Objectives 2 and 4 Review. 108. . Punnett. Square Practice. 109. Objectives 3 and 5 Review. 110. 5. th. 6 Weeks Test. . Please DO NOW . Today’s . Schedule . 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.. Chapter 5: Molecules and Compounds. Learning Goals. Write . chemical formulas.. Determine . the total number of each type of atom in a chemical formula.. Classify . elements as atomic or molecular.. Classify . . 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. The Digestive System. Amazing Facts . . We make 1-3 pints of saliva a day.. The average male will eat about 50 tons of food to sustain weight of 150 pounds. A horse’s intestines are about 89 feet long. 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.