It's without the engineers and architectures that we would be "living in a pile of scrap." Tradies merely get told what to do and do the labour intensive work such as placing bricks and shit.
I said C because the addition of a solid to an equilibrium has no effect, automatically ruling out A and B. And then sodium sulfate is a neutral salt, therefore its addition will have no pH change.
You can't quantify the number of hours you study as it is different for all people.
What you must do is work on areas which you are struggling in and constantly do past papers.
Ezzzz they can be named through the IUPAC way or the electronegative way. Anyone who asks electronegative is a fggt
a) dichlorodifluoromethane.
b)1,2 dichloro - 1,1,2,2, tetrafluoroethane
c)trichlorofluoromethane.
Study.
Motivate yourself through money lol.
MOST courses
High atar = better course = enjoy = lots of $$$
Low atar = plumber or construction = working with toilets pretty much, or building houses, possibilities of being injured are high = low $$$
Soz to anyone who gets offended...