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yeah i thought i got that wrong :)

Section one guys, enjoy! 1- 30 2- x 3- 1234321 4- 12 5- 3 6- 2 7- 6/13 8- 2000 9- 6 or 7 10- 1/2 11- 9 degrees 12- -7 13- 28L 14- 135 degrees 15- x=2 16- 9cm2 17- 108cm3 18- 11 19- -18 20- -7

sorry :)

you never need to out a balanced chemical equation in the school certificate, only in the HSC, so the correct answer is KOH

you probably would get the mark, although they asked what REACTION had occured and it was a precipitation reaction, the precicpitate is a product of a precipitation reaction

type in potassium hydroxide to google and it says KOH

the idea of the (pathetically stupid year 3 project) that involves blowing up the balloon, is supposed to represent the different galaxies moving away from each other as with in an expanding universe

Yeah its KOH for potassium hydroxide, i put KHO :angryfire: Also for the people that think that the balloon question is red shift, its in the science focus textbook, its GALAXIES moviing apart and is the BIG BANG theory. Red shift if part of the DOPPLER EFFECT like blue shift and hence is not...