Notes Tennessee SPI Objective: Identify the reactants and products of a chemical reaction. Science Essential Learning Students will identify reactants and products in chemical equations. Essential Question(s) How do I recognize reactants and products in chemical equations? SPI Reactants & Products Instructions 1) First click on "View" from the top-menu bar. 2) Then click on "Slide Show" from the drop-down menu. 3) Then use the right-arrow button on your keyboard to advance through this presentation.
Chemical Reactions Are represented by chemical equations Chemical Equations Have two parts: Notes Science SPI Reactants & Products 2H 2 + O 2 2H 2 O Example: (1) reactants and (2) products Reactants (Hydrogen & Oxygen) Product (water) Reactants: are the "ingredients" of a chemical reaction. These are the things you are combining together… the things you start with. Products: are the things that you produce in a chemical reaction… …the things you end up with.
Look at the chemical equation below. (from page 340) Identify the reactants and products Notes Here are the reactants Here are the products Science SPI Reactants & Products
Reactants-are the starting materials in a chemical reaction Remember: the arrow ALWAYS points away from the reactants! Here are the reactants SPI Reactants & Products Notes Science Examine the reactants
Products- are the substances formed/produced in a chemical reaction Remember: the arrow ALWAYS points towards the products! Here are the products Notes Science SPI Reactants & Products Examine the products
2H 2 + O 2 2H 2 O 2H 2 and O 2 Identify the REACTANTS in this equation. …or you could simply indentify the reactants as H (hydrogen) and O (oxygen) The arrow always points towards the product(s)! Reminder: Science SPI Reactants & Products Review
N 2 + 3H 2 2NH 3 SPI Reactants & Products Review 2NH 3 Identify the PRODUCTS in this equation. The arrow always points towards the product(s)! …or you could simply indentify the product as NH 3 (ammonia) Reminder: Science
2NaCl 2Na + Cl 2 2Na and Cl 2 Identify the REACTANTS in this equation. The arrow always points towards the products! …or you could simply indentify the reactants as Na (sodium) and Cl (chlorine) Reminder: Science SPI Reactants & Products Review
Sn + 2H 2 O SnO 2 + 2H 2 Sn and 2H 2 O Identify the PRODUCTS in this equation. The arrow always points towards the products! …or you could simply indentify the products as Sn (tin) and H 2 O (water) Reminder: Science SPI Reactants & Products