August 2018 1 36 Report
Bila logam magnesium dibakar dengan gas oksigen akan diperoleh senyawa magnesium oksida berapakah perbandingannya, apabila diketahui :
a) massa magnesium = 45 gram, massa oksigen 8 gram, massa magnesium oksida 20 gram, dan unsur yang bersisa 33 gram Mg ?
b) massa Mg = 12 gram, massa oksigen = 20 gram, massamagnesium oksida 10 gram, dan unsur yang tersisa 12 gram O

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