CH 111 - magnesium oxide 7 2.81 mol x(131.8 g/mol = 371 g 8...

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CH 111 - General Chemistry I Exam Answers Version 01B 08a 1. E, B, G, D, F or C, A 2. [(22 x 1)/342.30] x 100 = 6.43 % 3. 3Ca(OH) 2 + 2H 3 PO 4 -----> Ca 3 (PO 4 ) 2 + 6H 2 O 4. Symbol I Nb Ca Protons 8 20 neutrons 10 74 electrons 10 54 charge +2 5. (3 x 137.327) + (2 x 30.973761) + (8 x 15.9994) = 601.92 amu or g/mol 6. a). hydrochloric acid b). ammonium chloride c). cobalt(II) hydroxide d). nitrous acid e).
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Unformatted text preview: magnesium oxide 7. 2.81 mol x (131.8 g/mol) = 371 g 8. a) P 2 O 5 b). Ca(NO 3 ) 2 c). Al 2 O 3 9. 26.895/11.75 = 2.289 mL 10. a). metal b). metalloid c). transition metal d). noble gas e). transition metal 11. a). combustion b). combination c). combination d). combustion 12. 25.61 g x (1 mol/114.0 g) x (16 mol/2 mol) x (44 g/1 mol) = 79.08 g...
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