Natural Science. Although I don't know whether paleontology counts as a nautral science.
Answer:
What is the relationship between an atom and an element?
A. An atom consists of several elements
xXxAnimexXx
Answer:
Acid-base indicators are generally weak proteolytic that change color in solution according to the pH. The acid-base equilibrium of a weak acid type of indicator (HI) in water can be represented as. [I] The acid, HI, and the conjugate base, I−, have different colors. The equilibrium expression for this process is.
Answer:
Van't Hoff factor is 1.72 ≅ 2
Explanation:
Let's apply the colligative property of boiling point elevation:
ΔT = Kb . m . i
ΔT = Boiling T° of solution - T° boiling of pure solvent
103.45 °C - 100°C = 0.512 °C/m . 3.90 m . i
3.45 °C / 0.512 m/°C . 3.90 m = i
1.72 = i ≅ 2
