Frank ICSE Solutions for Class 9 Chemistry - Study of the First Element - Hydrogen PAGE NO :146 Solution 1:(a) Symbol of hydrogen is 'H' and its molecular formula is H2. (b) 2 H means 2 atoms of hydrogen while H2 means one molecule of hydrogen. (c) Lavoisier gave "Hydrogen" its name because it means water product.Solution 2: Hydrogen is found in free state as … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Study of the First Element – Hydrogen
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Frank ICSE Solutions for Class 9 Chemistry – The Periodic Table
Frank ICSE Solutions for Class 9 Chemistry - The Periodic Table PAGE NO :132 Solution 1: The present form of periodic table has eighteen vertical columns called 'groups'. These groups are numbered from 1 to 18.Solution 2: Seven horizontal rows in periodic table are called periods.These are numbered as 1, 2, 3, 4, 5, 6 and 7 from top to bottom.Solution 3: Certain … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – The Periodic Table
Frank ICSE Solutions for Class 9 Chemistry – Atomic Structure
Frank ICSE Solutions for Class 9 Chemistry - Atomic Structure PAGE NO :113 Solution 1:Solution 2:Solution 3:(a) Mass of an atom - Protons and neutrons (b) Size of an atom - ElectronsSolution 4:Three fundamental particles of an atom are-Proton Electron NeutronSolution 5:(a) An atom - An atom is the smallest particle of an … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Atomic Structure
Frank ICSE Solutions for Class 9 Chemistry – Water
Frank ICSE Solutions for Class 9 Chemistry - Water PAGE NO :96 Solution 1: The molecular formula of water is H2O, this shows that water is not an element but it is a compound made up of two elements hydrogen and oxygen combined in a fixed ratio, i.e., 1:8 by mass. This also shows that the properties of water is totally different from those of hydrogen and oxygen as … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Water
Frank ICSE Solutions for Class 9 Chemistry – Physical and chemical changes
Frank ICSE Solutions for Class 9 Chemistry - Physical and chemical changes PAGE NO :74 Solution 1: A physical change is a temporary change in which no new substance is formed and the composition or identity of the substance is not altered although certain specific physical properties may be changed.Solution 2: A chemical change is a permanent change in which the … [Read more...] about Frank ICSE Solutions for Class 9 Chemistry – Physical and chemical changes