Gaseous ammonia chemically reacts with oxygen o2 gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of oxygen needed to produce 0.050 mol of nitrogen monoxide. Be sure your answer has a unit symbol, if necessary, and round it to the correct number if significant digits.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

How do you lengthen a pattern piece? (family and consumer science, sewing)