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Which of these molecules is polar out of N2 BCl3 O2 NO?
NO
What is the balanced equation between magnesium nitrogen and magnesium nitride?
3Mn + N2 ----> Mn3N2 its actually 3mg+N2(arrow) Mg3N2
Is N2 a ionic or covalent bonds?
Nitrogen gas (N2) consists of a covalent bond between two nitrogen atoms. This bond involves the sharing of electrons between the atoms, resulting in a stable molecule.
Which of N2 N2- N2 plus contain unpaired electrons?
N2+ and N2- I just did it on mastering chem and it worked I'm pretty sure its because when you count the valence electrons in N2+ and N2- you get 9 and 11 respectively because these are odd there has to be an unpaired electron in each
What are the products when ammonia decomposes to its elements?
When ammonia decomposes into its elements, it forms nitrogen gas and hydrogen gas as products. This decomposition reaction can be represented by the equation: 2 NH3 -> N2 + 3 H2.
What is the difference between 2N and N?
The notation 2N typically means double the amount of a variable or object N. So, 2N is twice the value of N.
What is difference between the n and 2n number?
2n is 2 times n.
What is the square of n squared plus 2n minus 1?
(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
What is the value of n in the expession x cubed plus x squared minus 2nx plus n squared which has a remainder of 8 when divided by x minus 2?
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
How do you factor 5n2 10n 20?
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)
What is a number if the difference between five and twice the number is one?
5 - 2n = 1 4 = 2n n = 2
What is the difference between two times a number and three?
2n - 3
What is the nth term of 50 49 46 41 34?
-n2+2n+49
What is two times a number?
double the number n2 2n 2xn nx2
Number sequence 1 2 5 10 what 2 numbers are next and why?
We can work out the next two numbers by getting the nth term. To do this find the difference detween each of the terms (1,2,5,etc...): (differences in subscript) 1 1 2 3 5 5 10 We see that the differences at the first level are not the same; so we do it again, but for the differences, not the terms: 1 2 3 2 5 Now the differences are the same. This tells us that the nth term contains n2. This also tells us that the equation will be in the form An2+Bn+C. If we take n2 as the nth term for now and fill out the first four places we get: 1,4,9,16 which isn't correct. Now we have to find out how to get from n2 to the correct sequence. To do this we look at the difference between the two, these are: 0,2,4,6. We can fill in the rest of the equation (Bn+C) here with ease. If we turn the above differences into a sequence and find its nth term we will have the rest of the equation for the original sequence. To do this we look at the differences as in the original. These are: 0 2 2 2 4 2 6 This is very helpful because the differences are the same. We now know that 2n is involved. However 2n isn't the correct nth term as 1x2 is 2, not 0. To get the correct nth term we substitute the term numbers into 2n and find the difference between the two. The difference is -2 in every case. So know we know that the nth term for the difference between n2 and the original sequence is -(2n-2). That gives us the nth term of n2-(2n-2), however this is messy so we want to expand the bracket. When we expand it we get n2-2n+2 (the -2 changes to +2 because -(2n-2) is the same as -1(2n-2), therefore when expanded we have -1x-2 = -2). So now we know that the nth term is n2-2n+2 we can easily find the next two numbers by substituting in the values 5 and 6. Doing this gives us 17 and 26. The sequence with the next two values is: 1, 2, 5, 10, 17, 26 N.B. Although the next two values were obvious at the very 1st stage, I decided to show you the longer method to help you in future when the solution is not as obvious. -Iban
What is the formula for the denominator in lacsap's triangle?
(1/2n-r)2+((n2+2n)/4) where n is the row number and r is the position of the term in the sequence
What is The difference between five and twice a number is one?
It is abs(5 - 2n) = 1
