Hi, i just bought a "Chemistry 9th Edition" by Raymond Chang, published by McGraw-Hill INTERNATIONAL EDITION. My professor said to buy a Chemistry 9th Edition by Raymond Chang published by McGraw-Hill and he didn't say anything about whether the International Edition is the same as the "regular" edition. Are they the same? Please help. I need to finish reading 3 chapters and 2 homeworks by next Weds. Please, thanks.