4. For the reaction represented by the equation 3Fe + 4H,0 - Fe,, + 4H,, how many moles of iron(III) oxid are produced from 500 g of iron in an excess of H. O?
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Herbivores, carnivores, omnivores, decomposers, herbivores

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.

Answerit is not a suspension or colloid mixture, it is a solution mixture;