How do you balance this equation? Show your work.
Cu+HNO3=Cu(NO3)2+NO+H2O

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 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.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium