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1. Fe + Na Br - Fe Brs + Na 2. Hz + O2 - H2 O 3. Hg O ------→ Hg + 02

1. Fe + Na Br - Fe Brs + Na 2. Hz + O2 - H2 O 3. Hg O ------→ Hg + 02

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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Balance the following chemical equation using the steps in balancing
equations.

1. Fe + Na Br → Fe Brz + Na 2. H2 + O2 → H2 O 3. Hg O --→ Hg + O2
Transcribed Image Text:1. Fe + Na Br → Fe Brz + Na 2. H2 + O2 → H2 O 3. Hg O --→ Hg + O2
BALANCING EQUATIONS: Steps in balancing equations: Take note of the elements present in the reactant and product side Example: Na CI + Ba O Ва Cla Count the number of atom/s of each element present in the reactant and product side Products Reactants Na CI Na → Naz o + Ва Ва CI Na ---- 1 atom Na --- 2 atoms CI - 1 atom 1 atom Ва CI -------- 2 atoms Ва --- 1 atom 1 atom ------- 1 atom Apply the Law of Conservation of Mass to get the same number of atoms of every element on each side of the equation. 1. Ba and O appear to balanced, proceed to balanced Na & CI 2. To balanced Na & CI, find their LCM (Least Common Multiple) which is 2,1 3. The LCM of 2 & 1 is 2 To check: Na-- 1 atom x 2 = 2 atoms Na ---2 atoms x 1=2 atoms CI -- 1 atom x 2 = 2 atoms o -- 1 atom Ba-- 1 atom O --- 1 atom Balance the chemical equations by placing the appropriate coefficients before the symbol or formula Ва -- 1 atom Do not change the subscripts of the formula CI --- 2 atoms x 1=2 atoms Supply the numbers 2 as coefficients in the equation 2 Na CI + Ba O -------→ 1 Na, O + Ba Cl, The chemical equation is now balanced.It follows the Law of 2 Na CI + Ba o -3 Naz O + Bа Clz Conservation of Mass.
Transcribed Image Text:BALANCING EQUATIONS: Steps in balancing equations: Take note of the elements present in the reactant and product side Example: Na CI + Ba O Ва Cla Count the number of atom/s of each element present in the reactant and product side Products Reactants Na CI Na → Naz o + Ва Ва CI Na ---- 1 atom Na --- 2 atoms CI - 1 atom 1 atom Ва CI -------- 2 atoms Ва --- 1 atom 1 atom ------- 1 atom Apply the Law of Conservation of Mass to get the same number of atoms of every element on each side of the equation. 1. Ba and O appear to balanced, proceed to balanced Na & CI 2. To balanced Na & CI, find their LCM (Least Common Multiple) which is 2,1 3. The LCM of 2 & 1 is 2 To check: Na-- 1 atom x 2 = 2 atoms Na ---2 atoms x 1=2 atoms CI -- 1 atom x 2 = 2 atoms o -- 1 atom Ba-- 1 atom O --- 1 atom Balance the chemical equations by placing the appropriate coefficients before the symbol or formula Ва -- 1 atom Do not change the subscripts of the formula CI --- 2 atoms x 1=2 atoms Supply the numbers 2 as coefficients in the equation 2 Na CI + Ba O -------→ 1 Na, O + Ba Cl, The chemical equation is now balanced.It follows the Law of 2 Na CI + Ba o -3 Naz O + Bа Clz Conservation of Mass.
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