Balance the following chemical equation using the steps in balancingequations. 1. Fe + Na Br→ Fe Brz + Na2. H2 + O2→ H2 O3. Hg O--→ Hg + O2 BALANCING EQUATIONS:Steps in balancing equations:Take note of the elements present in thereactant and product sideExample:Na CI + Ba OВа ClaCount the number of atom/s of eachelement present in the reactant andproduct sideProductsReactantsNaCINa→ Naz o +ВаВаCINa ---- 1 atomNa--- 2 atomsCI-1 atom1 atomВаCI -------- 2 atomsВа--- 1 atom1 atom------- 1 atomApply the Law of Conservation ofMass to get the same number of atomsof every element on each side of theequation.1. Ba and O appear to balanced, proceed to balancedNa & CI2. To balanced Na & CI, find their LCM (Least CommonMultiple) which is 2,13. The LCM of 2 & 1 is 2To check:Na-- 1 atom x 2 = 2 atoms Na ---2 atoms x 1=2 atomsCI -- 1 atom x 2 = 2 atoms o -- 1 atomBa-- 1 atomO --- 1 atomBalance the chemical equations byplacing the appropriate coefficientsbefore the symbol or formulaВа -- 1 atomDo not change the subscripts of theformulaCI--- 2 atoms x 1=2 atomsSupply the numbers 2 as coefficients in the equation2 Na CI + Ba O -------→ 1 Na, O + Ba Cl,The chemical equation is nowbalanced.It follows the Law of2 Na CI + Ba o-3 Naz O + Bа ClzConservation of Mass.

Answered: 1. Fe + Na Br - Fe Brs + Na 2. Hz + O2…

Science

Chemistry

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

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 2ALQ: The boxes shown below represent a set of initial conditions for the reaction: Draw a quantitative...

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Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

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

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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