tarea 1 quimica

tarea 1 quimica - Reacts slowly with O 2 a elevated...

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1.1 (i) a pure element (ii) a mixture of an element and a compound (iii) a mixture of an element and a compound (iv) a pure compound (v) a pure element a pure compound (vi) a mixture of two elements 1.18 Physical Chemical Silver gray color Zinc granules + sulfuric acid = H + metal dissolution Melts at 420°C
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Unformatted text preview: Reacts slowly with O 2 a elevated temperature Hardness on mohs scale of 2.5 Density of 7.13 g/cm 3 at 25°C 2.50 Fill in the gaps in the following table: Symbol 31 P 3-80 Br 1-115 In 3+ 197 Au 3+ Protons 15 35 49 79 Neutrons 16 45 66 118 Electrons 18 36 46 76 Net charge 3-1-3+ 3+...
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This note was uploaded on 10/02/2008 for the course QMC 100 taught by Professor Manuelreyna during the Fall '08 term at ITESM.

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