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Chapters
2: Health and Diseases
3: Force and Pressure
4: Current Electricity and Magnetism
5: Inside the Atom
6: Composition of Matter
7: Metals and Nonmetals
8: Pollution
9: Disaster Management
10: Cell and Cell Organelles
11: Human Body and Organ System
12: Introduction to Acid and Base
▶ 13: Chemical Change and Chemical Bond
14: Measurement and Effects of Heat
15: Sound
16: Reflection of Light
17: Man made Materials
18: Ecosystems
19: Life Cycle of Stars
![Balbharati solutions for Science [English] 8 Standard Maharashtra State Board chapter 13 - Chemical Change and Chemical Bond - Shaalaa.com](/images/science-english-8-standard-maharashtra-state-board_6:eb537b0cf4ff4519ab07a4325c00b766.jpg "Balbharati solutions for Science [English] 8 Standard Maharashtra State Board chapter 13 - Chemical Change and Chemical Bond")
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Solutions for Chapter 13: Chemical Change and Chemical Bond
Below listed, you can find solutions for Chapter 13 of Maharashtra State Board Balbharati for Science [English] 8 Standard Maharashtra State Board.
Balbharati solutions for Science [English] 8 Standard Maharashtra State Board 13 Chemical Change and Chemical Bond Exercise [Pages 94 - 42]
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Rusting of iron is a ______ chemical change.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The spoiling of food is a chemical change which is recognized from the generation of certain ______ due to it.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
A colourless solution of calcium hydroxide in a test tube turns ______ on blowing in it through a blow tube for some time.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
The white particles of baking soda disappear when put in lemon juice. This means that it is a ______ change.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Oxygen is a ______ in respiration.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Sodium chloride is ______ compound while hydrogen chloride is ______ compound.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Electron ______ is complete in each hydrogen in a hydrogen molecule.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Chlorine (Cl2) molecule is formed by ______ of electrons between two chlorine atoms.
Explain by writing a word equation.
Respiration is a chemical change.
Explain by writing a word equation.
Hard water gets softened on mixing with a solution of washing soda.
Explain by writing a word equation.
Limestone powder disappears on adding to dilute hydrochloric acids.
Explain by writing a word equation.
Bubbles are seen on adding lemon juice to baking soda.
Match the pairs.
| a. | Photosynthesis | i. | Tendency to lose electrons |
| b. | Water | ii. | Reactant in combustion process |
| c. | Sodium chloride | iii. | Chemical change |
| d. | Dissolution of salt in water | iv. | Covalent bond |
| e. | Carbon | v. | Ionic bond |
| f. | Fluorine | vi. | Physical change |
| g. | Magnesium | vii. | Tendency to form anion |
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Potassium fluoride
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Water
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Hydrogen chloride
In term of electron transfer, define Oxidation
In term of electron transfer, define
Reduction
Solutions for 13: Chemical Change and Chemical Bond
Balbharati solutions for Science [English] 8 Standard Maharashtra State Board chapter 13 - Chemical Change and Chemical Bond
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Concepts covered in Science [English] 8 Standard Maharashtra State Board chapter 13 Chemical Change and Chemical Bond are Chemical Reaction, Chemical Bond, Changes-Physical and Chemical, Indicators of a Chemical Change (Chemical Reaction), Chemical Changes in Everyday Life, The Covalent Bond, Ionic or Electrovalent Bond.
Using Balbharati Science [English] 8 Standard Maharashtra State Board solutions Chemical Change and Chemical Bond exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board Science [English] 8 Standard Maharashtra State Board students prefer Balbharati Textbook Solutions to score more in exams.
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