2. D) A solution that has more solute in it than it can hold is called a supersaturated solution. An easy way to know this is because super means that there is more.
3. I'm not sure about this one, but all I can tell you is that the gram formula mass of H2SO4 is 98 grams.
4. D) C2H6SO is the empirical formula. We know this because all of the subscripts are simplified as much as possible. You might try to simplify the C2 and H6 but take note that the S and O have no subscripts, so elements cannot be simplified anymore.
5. D) ethanoic acid (C2H4O2) has the same empirical formula as glucose. The empirical formula of glucose is CH2O. This is because the subscripts of 6/12/6 have a common factor of 6, so we divide them all by 6 to get subscripts of 1/2/1. Ethanoic acid has subscripts of 2/4/2. They have a common factor of 2, so when we divide them by 2, they will become 1/2/1.
Gguyy que no pueda hacer más de que no se puede decir nada de la gente que se puede hacer un favor de que se ha
384.72 J is the heat of fusion of the substance.
<h3>What is the heat of fusion? </h3>
It is the change in the value of the enthalpy by providing energy i.e. heat, for a specific quantity of the substance.
Given data:
Heat of fusion =?
Mass of substance = 8.4 g
Unknown:
Amount of energy required to melt the given mass = 45.8 cal
Solution:
To solve this problem, the amount of energy required to melt the substance is given as;
H = m L
m is the mass
L is the heat of fusion
Insert the given parameters and solve;
H = 8.4 g x 45.8 cal = 384.72 J
Hence, 384.72 J is the heat of fusion of the substance.
Learn more about heat of fusion here:
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A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction
Answer:
The correct answer is tetrahedral
Explanation:
Molecular geometry can be described as the three dimensional structure of atoms in a molecule. It is usually preferable to draw out the lewis dot structure of a compound before using that to determine the molecular geometry of the compound. The lewis dot structure and the tetrahedral structure of phosphoryl iodide (POI₃) are in the attachment below.
As it can be seen in the attachment, the molecular geometry of phosphoryl iodide is tetrahedral.