Lithium and nitrogen react to produce lithium nitride: 6Li(s) + N2(g) 2Li3N(s) How many moles of lithium nitride are produced when 0.450 mol of lithium react in the presence of excess nitrogen?
A) 0.150
B) 0.900
C) 0.0750
D) 1.35
E) 0.225
Question 2
Phosphate esters are prepared from
A) phosphoric acid + alcohol.
B) phosphoric acid + ester.
C) phosphoric acid + carboxylic acid.
D) phosphate + ester.
E) phosphate + alcohol.
Question 3
An atom with Z = 35 and A = 80 contains ________ protons, ________ electrons, and ________ neutrons.
A) 35; 35; 80
B) 80; 35; 35
C) 35; 35; 45
D) 45; 80; 45
E) 45; 80; 35
Nitrogen content of live and dead leaves
Hand mnemonic for the basic atmosphere composition being 4/5 nitrogen and 1/5 oxygen.
Examples of the most common X-ray positions and the images they produce.
As some groups do ethnic work, they produce a mythical long-lost heritage, as in this photo of ...
An emission tester that uses nitrogen to pressurize the fuel system.
Protein Needs Are Determined by Nitrogen Balance in Your Body