Which element in this group would be the least likely to react with other elements? 3
Lithium
Li
6.939
2,1
4
Beryllium
Be
9.01218
2.2
5
Boron
B
10.81
2,3
6
Carbon
С
12.011
2.4
7
Nitrogen
N
14.0067
2,6
8
Oxygen
O
15.9994
2,6
10
Neon
Ne
20.183
2,8
9
Fluorine
F
18.9984
2,7
Boron
O Carbon
O Neon
Oxygen

Joe shines white light into a bowl half full of water at an angle of incident of 27.5°. calculate the angle of refraction in the water given the indices of refraction for air and water are 1.00 and 1.36, respectively.

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.