CBSE Class 10 Answered
why there is a need to write a subscript with non-metals like O subscript 2 in a chemical reaction?
Asked by mrinalchatterjee | 02 May, 2010, 01:25: PM
Expert Answer
See, if you write O it means oxygen atom.
Oxygen does not exist as oxygen atom but as oxygen molecule.
You know that oxygen is a non- metal i.e. it is an element . In elemental state or existing as a non- metal, oxygen exists as oxygen molecule. SO, we write O2. Oxygen molecule is oxygen gas.
Similary . hydrogen element , hydrogen non - metal or hydrogen gas we write H2 and not H.
Also, chlorine element , chlorjne non - metal or chlorine gas we write H2 and not H.
Answered by | 03 May, 2010, 08:57: AM
Application Videos
-
This video describe Position of Elements in Periodic Table. -
This video deals with solved problem based on the concept of determination ... -
This video deals with solved problem based on the concept of Electronic Con... -
This video explains the concept of trends in electronegativity in periodic ... -
This video is based on the concept of chemical properties of metals.
Concept Videos
-
Chemical Reactions - Part 1
This video explains the chemical reaction and its features in terms of endo... -
Chemical Equation - Part 1
This video defines chemical equations and explains how to balance chemical ... -
Combination Reaction
Understand the meaning and types of combination and decomposition reaction... -
Displacement and Precipitation Reactions
Understand the meaning of displacement and double displacement reactions. -
Oxidation and Reduction
Study the meaning of oxidation, reduction and Redox reaction in terms of h...
CBSE 10 - Chemistry
Asked by deepabanshiwala | 23 Mar, 2023, 09:58: AM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by saritadiwakarjha | 07 Mar, 2023, 05:47: AM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by bdk_ajay | 27 Feb, 2023, 09:05: PM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by shoaibhakak41 | 18 Jan, 2023, 02:17: PM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by ssyedbasha49 | 16 Jan, 2023, 02:17: PM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by nehashekh291 | 03 Jan, 2023, 03:11: PM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by nehashekh291 | 02 Jan, 2023, 07:26: PM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by murugan3 | 25 Dec, 2022, 06:12: AM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by satulurivictor | 17 Dec, 2022, 08:51: PM
ANSWERED BY EXPERTCBSE 10 - Chemistry
Asked by kashviS.shah | 14 Sep, 2022, 11:27: PM
ANSWERED BY EXPERT