Exam (elaborations)
OCR ANSWER AND SOLUTIONS
- Course
- Institution
1 How many electrons are in a 12Mg 24 2+ ion? A 10 B 12 C 14 D 22 Your answer - ANSWER A 2 What is the formula of chromium(III) sulfate? A Cr3SO4 B Cr(SO4)3 C Cr2(SO4)3 D Cr3SO3 Your answer - ANSWER C 3 Which molecule is non-polar? A SF6 B H2S C PF3 D NH3 Your answer - ANSWER A 4 ...
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