(I) Ca + O2 (little 2)----> CaO

(ii) C2H6 + O2 -----> CO2 + H2O

(III) Fe2O3 + CO ------> Fe + CO2

All number are the little ones!

PLEASE ANSWER ASAP

THANK YOU

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(I) Ca + O2 (little 2)----> CaO

(ii) C2H6 + O2 -----> CO2 + H2O

(III) Fe2O3 + CO ------> Fe + CO2

All number are the little ones!

PLEASE ANSWER ASAP

THANK YOU

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## Answers (1)

when you balance an equation , both sides of the equation should have the same amount of each element , there isn't any rule for balancing an equation , just experiment numbers until all elements are balanced , Balance a lot of equations , you will learn after some practice and watch youtube tutorials about balancing equations .

balancing those 3 :

1- 2Ca + O2 ----> 2CaO ........... O and Ca are 2 in both sides .

2- C2H6 + 7/2 O2 -----> 2CO2 + 3H2O ..... 2C , 6H , 7 O are in both sides , ( in the left side 7/2 O2 = 7 O2 BECAUSE 7/2 * 2 = 7)

3.Fe2O3 + 2CO ------> 2Fe + 2CO2

and by the way : all numbers in front of the letters are little ones , the big ones are called Coefficients .

good luck!