O alumínio é utilizado como redutor de óxidos, no processo de nominado de aluminotermia, conforme mostra a equação química: 8 Al(s) + 3 Mn3O4(s) → 4 Al2O3(s) + 9Mn(s) Dados: Al2O3(s) H=-1667,8; Mn3O4(s) H= -1385,3 Segundo a equação acima, para a obtenção do Mn(s), qual será a variação de entalpia, em KJ?

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.

Which is an example of a highly unstable isotope that is often used in fission reactions?