Suppose you have 28.9 grams of elemental germanium, what mass would be the isotope germanium - 72?

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

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Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.