N n n 4 n n n.
The pentazenium cation (also known as pentanitrogen) is a positively charged polynitrogen ion of the chemical formula N+ 5. Together with dinitrogen, solid nitrogen polymers and the azide anion, it is one of the only three polynitrogen species obtained in bulk quantities.
n n n n n — 4 (четыре) буквы.
0:0:5/28/2010:Y:N:Y:N:N:5:Y:Elderly and Disabled:1-BR, 2-BR:0:Brookside Gardens:239 MURRAY HILL TERRACE, BERGENFIELD, NJ 07621.
N is an action-arcade physics-based platformer featuring an acrobatic pacifist ninja with a thirst for gold. N v2.0 public beta is now open. We put the N in 'fun', you'll add the 'FU'.
N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride (637-01-4) also can be called Wurster's reagent dihydrochloride ; N,N,N',N'-Tetramethylbenzene-1,4-diamine dihydrochloride ; N,N,N',N'-Tetramethylbenzol-1,4-diamindihydrochlorid ; 1,4-benzenediamine, N~1~,N~1~,N~4~,N~4...
N nvnnn..nnnn-na n>anan' ~annannn-~~N4NANNNAANN-NNNNNA>a n~
We give three proofs here that the n-th Triangular number, 1+2+3+...+n is n(n+1)/2. The first is a visual one involving only the formula for the area of a rectangle. This is followed by two proofs using algebra.
Identification. Name. N,N,N',N'-Tetramethyl-1,4-phenylenediamine. Synonyms.
Health Hazard. ACUTE/CHRONIC HAZARDS: When heated to decomposition N,N,N',N'-Tetramethyl-1,4-phenylenediamine emits toxic fumes.