How should you dispose of the calcium and water reaction products?

4nh3+5o2--> 4no+6h20what is the total number of moles of h2o produced when 12 mole of nh3 is completely consumed?

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh