Answer:
The compound may have properties that are very different from those of the elements.
Explanation:
For example - common salt, sodium chloride ( NaCl) has very different properties from sodium and chlorine
Answer:
True
Explanation:
*For polar and associated substances, methods based on four should be used four or more parameters, like analytical equation of state
*The term "analytical equation of state" implies that the function
It contains powers of v not greater than four.
*Most expressions are of the cubic type and are grouped into
the so-called cubic equations of state.
*Cubic EoS calls are very popular in simulation of
processes due to its robustness and its simple extension to mixtures.
*They are based on the van der Waals state equation of more than
100 years.
Answer:
the volume of the sound will quarter
Explanation:
As you move far away from the source, the loudness of sound decreases. This is because as the distance from the source increases, the area it covers also increases thereby spreading the energy over a great area leading to lesser loudness and intensity.
As a result of this, sound intensity follows an inverse square law:
I ∝ 1/d²; where I is the intensity and d is the distance from source.
Therefore If a speaker is moved from 2 feet away to 4 feet away (increment of 2 feet), the volume of the sound would quarter (1/2² = 1/4)
Answer:
B
Explanation:
In counting the electron domains around the central atom in VSEPR theory, a Core level electron pair is not included.
Core level electron pair are the electrons other than the electrons in the valency shell of an atom. They in the proximity of the nucleus. They do not participate in the bonding.
VSEPR is the abbreviation for Valence shell Electron Pair repulsion theory. VESPR is a model for predicting molecular geometries based on the reduction in the electrostatic repulsion of the valence electrons of a molecule around a central atom.
