In the SN2 reaction of cyanide ion with (CH3)2CHCH2CH2X what is the relative order (best to worst leaving group) of reactivity for the following X substituents?

1. X=F
2. X=C1
3. X=Br
4. X=I

A) 1> 2 > 3 > 4
B) 4> 3 > 2 > 1
C) 3> 1 > 2 > 4
D) 2> 3 > 4 > 1

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

2b2t

explanation:

2b2t

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.