Tuition Plaza: ONLINE TUTORING
Online Tutoring HomepageHomepage  Quiz QuestionsQuiz  Homework HelpHomework  ForumForum  Active TopicsActive  SearchSearch  HelpHelp
Malaysian EditionMalaysia  ScoreScore  Create QuizCreate  Invite FriendsInvite  Display List of MembersMembers  About UsAbout
  RegisterRegister  LoginLogin
Chemistry
 Online Tutoring : Quiz : Chemistry
Chemical equations Check your score
  Play           Question 144 of 161 in this category.    

The following chemical equations represent the complete combustions of hydrocarbons. Which one correctly represents the complete combustion of ethane?
 
A.
CH4  +  2O2      CO2  +  2H2O
B.
CH4  +  3O2      CO2  +  4H2O
C.
2C2H6  +  7O2      4CO2  +  6H2O
D.
C2H6  +  2O2      CO2  +  2H2O

 
  * Quiz question created by Beka on 23 July 2005 at 4:16pm

 
 
 
 
 
 

 




  Create            
 Create your own quiz question Create new quiz question 

  See all your quiz questions


  Invite            
 Invite your friends here Invite your friends to this website 

 



  Read            

Chemical equation for the complete combustion of ethane


 dah lama tinggal dah tak ingat.. ada sape2 boleh terangkan tak?

The answer is:

2C2H6  +  7O2    4CO2  +  6H2O

Left side of equation:

Carbon atoms = 22 = 4
Hydrogen atoms = 26 = 12
Oxygen atoms = 72 = 14

Right side of equation:

Carbon atoms = 41 = 4
Hydrogen atoms = 62 = 12
Oxygen atoms = 42 + 61 = 14

The number of atoms for each element is the same before and after chemical reaction. Hence, the chemical equation is balanced!

 


See also this explanation by Beka (in Bahasa Melayu) - Pembakaran lengkap etana

Online Tutoring ::  Quiz ::  Homework Help ::  Forum ::  Tuisyen Online ::  Home Tuition
Invite Your Friends ::  Bookmark This Website
©2017 Eduweb Technology. All Rights Reserved