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What is a balanced chemical equation? Why should chemical equa
Science
Science

Class 10

NCERT

Publisher:
NCERT
Subject:
Science
1

Chapter 1: Chemical Reactions and Equations

34 questions

Q1
What happens when dilute hydrochloric acid is added to iron fillings?
Q2
What is a balanced chemical equation? Why should chemical equations be balanced?
Q3
Translate the following statements into chemical equations and then balance them:

(a) Hydrogen gas combines with nitrogen to form ammonia.
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
(c) Barium chloride reacts with aluium sulphate to give aluium chloride and a precipitate of barium sulphate.
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
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2

Chapter 2: Acid,Bases and Salts

39 questions

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3

Chapter 3: Metals and Non-metals

38 questions

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4

Chapter 4: Carbon and its Compound

24 questions

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5

Chapter 5: Periodic Classification of Elements

30 questions

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6

Chapter 6: Life Processes

13 questions

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7

Chapter 7: Control and Coordination

12 questions

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8

Chapter 8: How do Organism Reproduce?

11 questions

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9

Chapter 9: Heredity and Evolution

12 questions

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10

Chapter 10: Light -Reflection and Refraction

34 questions

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11

Chapter 11: The Human Eye and Colourful World

18 questions

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12

Chapter 12: Electricity

49 questions

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13

Chapter 13: Magnetic Effects of Electric Current

39 questions

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14

Chapter 14: Sources of Energy

24 questions

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15

Chapter 15: Our Environment

9 questions

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16

Chapter 16: Sustainable Management of Natural Resources

7 questions

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Question
Easy
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Solving time: 3 mins

What is a balanced chemical equation? Why should chemical equations be balanced?

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Updated on: Sep 6, 2023

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Text SolutionText solutionverified iconVerified

A balanced chemical reaction is an equation that has equal numbers of each type of atom on both sides of the arrow. 

A chemical equation is a written symbolic representation of a chemical reaction. The reactant chemical(s) are given on the left-hand side and the product chemical(s) on the right-hand side. 

The law of conservation of mass states that atoms can neither be created nor destroyed in a chemical reaction, so the number of atoms that are present in the reactants has to balance the number of atoms that are present in the products.
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Q1
What happens when dilute hydrochloric acid is added to iron fillings?
Q2
What is a balanced chemical equation? Why should chemical equations be balanced?
Q3
Translate the following statements into chemical equations and then balance them:

(a) Hydrogen gas combines with nitrogen to form ammonia.
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
(c) Barium chloride reacts with aluium sulphate to give aluium chloride and a precipitate of barium sulphate.
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
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Question Text
What is a balanced chemical equation? Why should chemical equations be balanced?
Updated OnSep 6, 2023
TopicChemical Reactions and Equations
SubjectScience
ClassClass 10
Answer TypeText solution:1 Video solution: 12
Upvotes1189
Avg. Video Duration6 min