<span>When
a solute is added to a solvent, some properties are affected and these set of
properties are called colligative properties. The properties depend on the amount of solute
dissolved in a solvent. For this we use the boiling point elevation of the solution. We do as follows:
</span>ΔT(boiling
point) = 103.06 °C - 100.0 °C= 3.06 °C<span>
ΔT(boiling point) = (Kb)m
m = </span>ΔT(boiling point) / Kb<span>
m = 3.06 °C / 0.512 °C kg / mol
m = 5.98 mol / kg
</span>
The best answer would be answer B. "the atom has a cloud of positive charge....."
Answer: The electronic configuration of iron is: Ar3d64s2. the two electrons in the 4s orbital are paired, and two of the electrons in the 3d orbitals are paired leaving four unpaired electrons.
Explanation:
Answer:
Most metals have <u>luster</u> which means they <u>reflect</u> light
Explanation:
When light, which is made up of energetic photons, comes in contact with the surface of a metal, it is absorbed due to the corresponding energy gaps present between the metal orbital. The absorbed photons results in the raising of the energy levels of electrons within an atom of the metal which later drop back to a lower energy level and re-emit the photons which can now be observed as the metallic luster.
The molecule is the representative particle of molecular compounds. It is also the representative particle of diatomic elements.
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I hope this helps you, have a beautiful day ✨</h2>
