The ionization energy trend refers to the need of an ion to displace electrons, or lose them. Your answer should be A, unless I didn't understand the question correctly.
Answer )
Thermal conductivity
Explanation)
Thermal conductivity is the ability of a material to conduct heat, and it represents the quantity of thermal energy that flows per unit time through a unit area with a temperature gradient of 1° per unit distance.
1 mol ---- 2,02 g
4 mol ---- x g
x = 4 mol × 2,02 g / 1 mol = 8,08 g
Answer : The mass of this sample is 8,08 g.
:-) ;-)
Dentrifictation occurs when there is a short fall of available nitrogen in the soil
Ionic compounds are made up of cations and anions.
So, C would be the correct answer