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Activity B: Get the Gizmo ready: • Erase the chemical formulas in each text box. Balancing equations ( The euton s p Introduction: In a chemical reaction, the reactants are the substances that enter into the reaction, and the products are the substances that are made in the reaction. A chemical reaction is balanced if the numbers of reactant atoms match the numbers of product atoms. Goal: Learn to balance any chemical equation. 1. Observe: To model how hydrogen and oxygen react to make water, type "H2+02" into the Reactants box and "H20" into the Products box. As the equation is written, which element is not in balance? Explain. 2. Balance: To balance a chemical equation, you are not allowed to change the chemical formulas of the substances involved in the reaction. You are allowed to change the number of molecules of each substance by adding coefficients in front of the formulas. A. To balance the oxygen atoms, add a "2" in front of the "H2O" in the Products box. How many oxygen atoms are found on each side of the equation now? B. To balance the hydrogen atoms, add a "2" in front of the "H2" in the Reactants box. How many hydrogen atoms are found on each side of the equation now? C. Is this equation currently balanced? Click Show if balanced to check 3. Apply: Now enter a more complex chemical reaction: Ca(OH), + HBr CaBr, + H,O. List the numbers of each element in the tables below: Products Са Reactants Са H Br H Br A. Which elements are out of balance? B. Add coefficients to balance first the bromine (Br) and then the hydrogen (H) atoms. When the equation is balanced, write the complete formula. Reproduction for educational use only. Public sharing or posting prohibited. O 2020 Explorel.eaming All rights reserved

Activity B: Get the Gizmo ready: • Erase the chemical formulas in each text box. Balancing equations ( The euton s p Introduction: In a chemical reaction, the reactants are the substances that enter into the reaction, and the products are the substances that are made in the reaction. A chemical reaction is balanced if the numbers of reactant atoms match the numbers of product atoms. Goal: Learn to balance any chemical equation. 1. Observe: To model how hydrogen and oxygen react to make water, type "H2+02" into the Reactants box and "H20" into the Products box. As the equation is written, which element is not in balance? Explain. 2. Balance: To balance a chemical equation, you are not allowed to change the chemical formulas of the substances involved in the reaction. You are allowed to change the number of molecules of each substance by adding coefficients in front of the formulas. A. To balance the oxygen atoms, add a "2" in front of the "H2O" in the Products box. How many oxygen atoms are found on each side of the equation now? B. To balance the hydrogen atoms, add a "2" in front of the "H2" in the Reactants box. How many hydrogen atoms are found on each side of the equation now? C. Is this equation currently balanced? Click Show if balanced to check 3. Apply: Now enter a more complex chemical reaction: Ca(OH), + HBr CaBr, + H,O. List the numbers of each element in the tables below: Products Са Reactants Са H Br H Br A. Which elements are out of balance? B. Add coefficients to balance first the bromine (Br) and then the hydrogen (H) atoms. When the equation is balanced, write the complete formula. Reproduction for educational use only. Public sharing or posting prohibited. O 2020 Explorel.eaming All rights reserved

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Activity B: Get the Gizmo ready: Atom count Balancing | equations • Erase the chemical formulas in each text box. V The equation is properly Introduction: In a chemical reaction, the reactants are the substances that enter into the reaction, and the products are the substances that are made in the reaction. A chemical reaction is balanced if the numbers of reactant atoms match the numbers of product atoms. Goal: Learn to balance any chemical equation. 1. Observe: To model how hydrogen and oxygen react to make water, type "H2+O2" into the Reactants box and "H2O" into the Products box, As the equation is written, which element is not in balance? Explain. 2. Balance: To balance a chemical equation, you are not allowed to change the chemical formulas of the substances involved in the reaction. You are allowed to change the number of molecules of each substance by adding coefficients in front of the formulas. A. To balance the oxygen atoms, add a "2" in front of the "H2O" in the Products box. How many oxygen atoms are found on each side of the equation now? B. To balance the hydrogen atoms, add a "2" in front of the "H2" in the Reactants box. How many hydrogen atoms are found on each side of the equation now? C. Is this equation currently balanced? Click Show if balanced to check 3. Apply: Now enter a more complex chemical reaction: Ca(OH)2 + HBr each element in the tables below: CaBr, + H,O. List the numbers of Reactants Products Ca H Br Ca H Br A. Which elements are out of balance? В. Add coefficients to balance first the bromine (Br) and then the hydrogen (H) atoms. When the equation is balanced, write the complete formula. Reproduction for educational use only. Public sharing or posting prohibited. © 2020 Exploreleaning M All rights reserved
Transcribed Image Text:Activity B: Get the Gizmo ready: Atom count Balancing | equations • Erase the chemical formulas in each text box. V The equation is properly Introduction: In a chemical reaction, the reactants are the substances that enter into the reaction, and the products are the substances that are made in the reaction. A chemical reaction is balanced if the numbers of reactant atoms match the numbers of product atoms. Goal: Learn to balance any chemical equation. 1. Observe: To model how hydrogen and oxygen react to make water, type "H2+O2" into the Reactants box and "H2O" into the Products box, As the equation is written, which element is not in balance? Explain. 2. Balance: To balance a chemical equation, you are not allowed to change the chemical formulas of the substances involved in the reaction. You are allowed to change the number of molecules of each substance by adding coefficients in front of the formulas. A. To balance the oxygen atoms, add a "2" in front of the "H2O" in the Products box. How many oxygen atoms are found on each side of the equation now? B. To balance the hydrogen atoms, add a "2" in front of the "H2" in the Reactants box. How many hydrogen atoms are found on each side of the equation now? C. Is this equation currently balanced? Click Show if balanced to check 3. Apply: Now enter a more complex chemical reaction: Ca(OH)2 + HBr each element in the tables below: CaBr, + H,O. List the numbers of Reactants Products Ca H Br Ca H Br A. Which elements are out of balance? В. Add coefficients to balance first the bromine (Br) and then the hydrogen (H) atoms. When the equation is balanced, write the complete formula. Reproduction for educational use only. Public sharing or posting prohibited. © 2020 Exploreleaning M All rights reserved
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