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
Some of the bacteria that can fix atmospheric nitrogen, converting it into a form usable by plants.
The carbon-nitrogen-oxygen cycle of The Sun
Examples of the most common X-ray positions and the images they produce.
pH vs. moles base added per mole acid
nitrogen cycle
A pedigree for an X-linked dominant trait. Affected males produce all affected daughters and no affe