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How do you factor 4s2-9?
4s2 - 9 can be expressed by using the identity: a2 - b2 = (a-b)(a+b) Therefore, 4s2 - 9 = (2s)2 - 32 = (2s-3)(2s+3)
How you write 10 to the power of -2?
12
How you write x to the power of -2?
1/x2 or x-2
How to write a to the power 2 in Microsoft Word?
Highlight the 2 and change the font to superscript.
How do you write 2 x 10 to the 2nd power?
2 x 102 or 200
Write the electron configuration diagram that shows the transfer of electrons that takes place to form the compound sodium fluoride and include the electron configuration of the ions formed?
For the formation of sodium fluoride, sodium (Na) will transfer one electron to fluorine (F) to achieve a stable electron configuration. The electron configuration for sodium is [Ne] 3s^1, and for fluorine, it is [He] 2s^2 2p^5. After transfer, sodium forms the Na+ cation with an electron configuration of [Ne], and fluorine forms the F- anion with an electron configuration of [He] 2s^2 2p^6.
If p equals 2s plus 5 what is s in terms of p?
If p = 2s + 5, then s = (p-5)/2 or 1/2 (p-5) --- p = 2s +5 p-5 = 2s (p-5)/2 = s
How can you use 5 2s to equal 26?
You can use three 2s to make 26 as follows (2x2)! + 2 = 26 So you can simply make 26 with five 2s as (2x2!) + 2 - 2 + 2 = 26
Write electron configurations for each of the following ions?
Sure! Sodium ion (Na+): 1s^2 2s^2 2p^6 Oxygen ion (O2-): 1s^2 2s^2 2p^6 Calcium ion (Ca2+): 1s^2 2s^2 2p^6 3s^2 3p^6
How do you write of a to the power of 2?
As a to the power of 2 is the same as a squared then how about this a2
What elements completes the 2s sublevel?
The 2s sublevel can hold a maximum of 2 electrons.
How do you determine the equation for the perpendicular bisector of the straight line joining the points s 2s and 3s 8s?
A = (s, 2s), B = (3s, 8s) The midpoint of AB is C = [(s + 3s)/2, (2s + 8s)/2] = [4s/2, 10s/2] = (2s, 5s) Gradient of AB = (8s - 2s)/(3s - s) = 6s/2s = 3 Gradient of perpendicular to AB = -1/(slope AB) = -1/3 Now, line through C = (2s, 5s) with gradient -1/3 is y - 5s = -1/3*(x - 2s) = 1/3*(2s - x) or 3y - 15s = 2s - x or x + 3y = 17s
How can you use five 2s to get 42?
Not sure about five, but you can make 42 with 6 2s with this method: 2[(22)! - (2/2) - 2] = 42
How do you write 256 as a power?
2 to the power of 8.
What does 2s-4 equal?
2s-4 equals 2(s-2). You can find the answer by factoring two out of both numbers.
How do you factor 4s2-9?
4s2 - 9 can be expressed by using the identity: a2 - b2 = (a-b)(a+b) Therefore, 4s2 - 9 = (2s)2 - 32 = (2s-3)(2s+3)
What is the answer to 5s - 6 equals 2s?
5s - 6 = 2s, ie 5s - 2s = 6, ie 3s = 6, ie s = 2
