n2 means 2 m atoms are in bond and 2n means atom withot a bond
Nitrogen (and oxygen and hydrogen) in the form of a gas is usually found as a molecule of two atoms of Nitrogen. That is N2. The fairly weak bond can be broken chemically, by heat, etc, and then you would have N.
NO
Nitrogen (N) is an element that in gaseous form is N2. N20 is a molecule called Nitrous Oxide and has the common name Laughing Gas.
A compound is two or more elements combined. Like H2O or NaCl. A molecule is the basic unit of a compound like O2, H2, N2.
3Mn + N2 ----> Mn3N2 its actually 3mg+N2(arrow) Mg3N2
what is the difference between 2x and 2n
2n is 2 times n.
(n2 + 2n - 1) (n2 + 2n - 1) = n4 + 2n3 - n2 + 2n3 + 4n2 - 2n - n2 - 2n + 1 = n4 + 4n3 + 2n2 - 4n + 1 try with n = 5: (5 squared + 10 - 1) squared = 34 squared = 1156 with formula (5^4) + (4 *(5^3)) + (2 * (5^2)) - (4 * 5) + 1 = 625 + 500 + 50 - 20 + 1 = 1156
Take 5 out. If the missing signs are pluses, it becomes 5(n2 + 2n + 4) If the missing signs are minuses, it becomes 5(n2 - 2n - 4)
n is 2. To solve, do the division: . . . . . . . . .x2 +. 3x + (6-2n) . . . -------------------------- x-2 | x3 + x2 - 2nx + n2 . . . . .x3 -2x2 . . . . .-------- . . . . . . . .3x2 - 2nx . . . . . . . .3x2 - . 6x . . . . . . . .---------- . . . . . . . . . (6-2n)x + n2 . . . . . . . . . (6-2n)x - 2(6-2n) . . . . . . . . . ---------------------- . . . . . . . . . . . . . . . .n2 + 2(6-2n) But this remainder is known to be 8, so: n2 + 2(6-2n) = 8 ⇒ n2 - 4n + 4 = 0 ⇒ (n - 2)2 = 0 ⇒ n = 2
The nth term is given by: rn = n2 + 8
5 - 2n = 1 4 = 2n n = 2
2n - 3
-n2+2n+49
double the number n2 2n 2xn nx2
(1/2n-r)2+((n2+2n)/4) where n is the row number and r is the position of the term in the sequence
5(n2 + 2n + 4)