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secondary 3 | E Maths
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tiffany
Tiffany

secondary 3 chevron_right E Maths chevron_right Singapore

hi can someone help me

Date Posted: 3 years ago
Views: 143
Francis Chua
Francis Chua
3 years ago
Take oxygen minus hydrogen

Factorise 10^23 as it is a common factor.

10^23 ( 2.66 - 1.67*10^-1)


B)

Oxygen + 2 hydrogen
2.66 *10^-23 + 2(1.67*10^-24)

Factorise 10^-23 before you solve.


If still struck, text 91912208

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Mr Ang
Mr Ang's answer
347 answers (A Helpful Person)
Hope this helps eh, thanks.