Showing work on AP Chem exam

Rusty84
Tue, 27 Mar 2012 22:26:35 +0000

I’m aware that you need to show work on the exam, but do you need to do the whole dimensional analysis thing? Or can you just put down the condensed version? Ex:
Converting grams to moles:
3 grams of Hydrogen. 1 gram= 1 mole; 3x1=3 mol H
Does this count just as much as doing the more formal D.A. crossing out and whatnot?

I personally abhor the ‘railroad track’ technique (I find it annoying, unnecessarily confusing, and tedious), so in class I always just use basic logic, like if I have .1 mol of HCL and it is in a 1:2 mole ratio with the product, AgCl or something, I multiply .1 by 2 to find the moles of AgCl. Is this acceptable on the exam? Or do I need to follow the crossing out of stuff?