A chemist accidentally drops a fold wedding ring into a 150.0mL solution of 0.85M barium nitrate. The chemist doesn’t want to stick his bare hands in the solution but is nervous that his invaluable wedding ring will be gone soon! a) identify the oxidation state of N in Ba(NO3)2
b) predict the possible products of this reaction, then write and balance the chemical equation.
c) how many moles of barium nitrate were in the solution?
d) will the gold ring react with barium nitrate? in other words, is the Au more reactive than Ba? justify your answer.

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

Which of the following describes a situation where competition between producers exists

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.