CBSE Class 9 Answered
atoms and molecules
Asked by sciencekida | 28 Mar, 2008, 01:19: PM
Expert Answer
An atom is single and smallest unit of exsistence of an element.In nature thses atoms exist not alone but in groups of one,two or three or more atoms together. These groups are chemically called molecules.Like oxygen exists as O2 that is two atoms together.
Answered by | 03 Apr, 2008, 08:38: PM
Application Videos
-
Mole concept
This video deals with solved problem based on the mole concept. -
Mole concept
This video deals with solved problem based on the mole concept. -
Mole concept
This video deals with solved problem based on the mole concept and Avogadro... -
Mole concept
This video deals with solved problem based on the mole concept and Avogadro... -
Writing Molecular Formulae_1
This video explains how to write the molecular formulae of the compounds.
Concept Videos
-
Atomic Mass and Isotopes
This video explains atomic mass, relative atomic mass and isotopes. -
Mole Concept - Part 1
This video explains formula unit mass and mole concept. -
Laws of Chemical Combination
This video explains the law of conservation of mass, the law of multiple pr... -
Atom
This video explains ancient insights into the concept of atom. -
Molecular Mass
This video explains molecular mass, relative molecular mass and writing che...
CBSE 9 - Chemistry
Asked by rajputanaji290 | 03 Oct, 2023, 09:30: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by muditsharma287 | 09 Mar, 2023, 10:10: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by shivalaxmi0205 | 08 Mar, 2023, 07:46: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by shivalaxmi0205 | 08 Mar, 2023, 07:43: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by jssjj | 19 Jan, 2023, 07:25: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by mohammedhaqqani.6b | 14 Jun, 2022, 02:51: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by gauravsingh36428 | 14 Mar, 2022, 07:44: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by jiyajthakor | 28 Feb, 2022, 07:03: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by gillsaabjashanpreetsingh3 | 16 Jan, 2022, 01:23: PM
ANSWERED BY EXPERTCBSE 9 - Chemistry
Asked by prachisharma772007 | 16 Jan, 2022, 11:12: AM
ANSWERED BY EXPERT
