A 7.50 g sample of potassium-40 was collected. After 8.757 x 10^9 years,
0.05859 g of the samp...
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Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
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Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?
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