`suppose you were tasked with producing some nitrogen monoxide (a. k.a. nitric oxide). i'm sure this is often requested of you. you can do it by combusting ammonia (be the equation would be as follows: 4nh3 + 5o 2→ 4no + 6h2o. if you form 3.50 mol of water, how much no forms? a. 2.33 mol. b. 4.00 mol. c. 4.50 mol. d. 6.75 mol. e. none of the above

Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.