That is algebraic notation. The N stands for kNight (K is King). The notation tells us that White's Knight moved to F3 and Black's Knight moved to F6. The notation doesn't need to tell us the starting point for the pieces, logically it can only be White's Knight from B1 and Black's from G8, and in general algebraic notation will only mention the start point if there's any ambiguity (ie for two white rooks who can both arrive at an intersection of their paths at F5, you'd have to say which it was)
The Konstantinopolsky Opening is a rarely played chess opening that begins with the moves:1. e4 e52. Nf3 Nc63. g3
It's a standard notation, meaning "Knight to F3".
In algebraic chess notation the opening position arrives: 1. e4 c5 2. Nf3 g6 From there it usually continues 3. d4 cxd4 4. Nxd4 Bg7 Then the two main moves are 5. c4 which is called the Maroczy Bind or 5. Nf3 and the line will continue like an accelerated dragon.
10 moves! Let me recall it,,...... Ruy Lopez, 1. e4 e5 2. Nf3 Nf6 3. Bb5 Caro-Cann Defense, 1. e4 c6 Sicilian Defense, 1. e4 c5 Italian, 1. e4 e5 2.. Nf3 Nf6 3. Bc4 French Defense, 1. e4 e6 Pirc Defense, 1. e4 d6 Quees's gambit, 1. d4 d5 2. c4 Indian Defenses, 1. d4 Nf6 English Opening, 1. c4 Reti Opening, 1. Nf3
== == There are 20 possible opening moves in chess. There are eight pawns and each pawn has two possible moves. There are two knights and each knight has two possible moves. e4 King's pawn opening (B00) d4 Queen's pawn (A40) c4 English opening (A10) Nf3 Reti opening (A04) f4 Bird's opening (A02) b3 Nimzovich-Larsen attack (A01) Na3 Durkin's attack (A00) h4 Anti-Borg (Desprez) opening (A00) f3 Gedult's opening (A00) e3 Van't Kruijs opening (A00) d3 Mieses opening (A00) c3 Saragossa opening (A00) a4 Ware (Meadow Hay) opening (A00) a3 Anderssen's opening (A00) Nc3 Dunst (Sleipner, Heinrichsen) opening (A00) Nh3 Amar (Paris) opening (A00) h3 Clemenz (Mead's, Basman's or de Klerk's) opening (A00) g4 Grob's attack (A00) g3 Benko's opening (A00) b4 Polish (Sokolsky) opening (A00)
On White's first move, he has 20 possible moves. They are (in algebraic notation): a3 b3 c3 d3 e3 f3 g3 h3 a4 b4 c4 d4 e4 f4 g4 h4 Nf3 Nc3 Na3 Nh3
NF3 is the correct formula for nitrogen trifluoride.
To find the mass percent of nitrogen in NF3, you need to calculate the molar mass of NF3 and then determine the mass of nitrogen in one mole of NF3. The molar mass of NF3 is 71.001 g/mol. The molar mass of nitrogen in NF3 is 14.007 g/mol. Therefore, the mass percent of nitrogen in NF3 is (14.007 g/mol / 71.001 g/mol) * 100% ≈ 19.76%.
It's impossible to say for certain. 1. d2d4 being the most popular move with 1. e2e4 close behind, the third most popular move would have be nf3. But, seeing as white isn't the only one who can make a first move; nf6 is also very popularized. I'd say the universal probability that a player will choose to make a knight move as their first is a little more or less than 30% of the time.
12 g NF3 equals 0,17 moles.
NF3
The covalent compound of NF3 is called nitrogen trifluoride.