December 2023 2 5 Report
1) Sabiendo que el óxido de calcio contiene 71.4% de calcio, calcular la masa de oxígeno en 679 gramos del óxido.
a) 205 g
b) 170 g
c) 194 g
d) 160 g
e) 215g
ayudaa:c¨¨¨¨

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