In which of the following the molecules are tightly packed?
solids
How are molecules arranged?
Particles in a: gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
How loosely or tightly packed molecules are?
Solid molecules are tightly compacted together, and liquid molecules are little spread out. Gas molecules are very spread out and are full of energy floating around randomly. Gas molecules can fill up any container with no consideration to size or shape.
What is it called when atoms are tightly packed?
In a solid, atoms are packed tightly together and move very slowly. In fact, they do not flow at all: they simply vibrate back and forth. Because the atoms in a solid are so tightly packed, solid matter holds its shape and cannot be easily compressed. Solids also have a definite volume.
How are molecules in solids arranged?
Molecules in a solid maintain both their own shape and their own volume. The molecular arrangement in solids is a highly organized, tightly-packed pattern with small spaces and molecular motion reduced to vibration in place.
What are the 3 properties of liquid?
All liquids show the following characteristics:
- Liquids are almost incompressible. In liquids molecules are pretty close to each other.
- Liquids have fixed volume but no fixed shape.
- Liquids flow from higher to lower level.
- Liquids have their boiling points above room temperature, under normal conditions.
What are the results of hydrogen bonding?
Hydrogen Bonding. Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.
Why is water called a universal solvent?
And, water is called the “universal solvent” because it dissolves more substances than any other liquid. This allows the water molecule to become attracted to many other different types of molecules.
Is a universal solvent *?
Water is called the universal solvent because it dissolves more substances than any other solvent. However, no solvent, including water, dissolves every chemical. Nonpolar solvents dissolve nonpolar molecules such as fats and other organic compounds.
Is acetone a universal solvent?
Acetone is a good solvent due to its ability to dissolve both polar and nonpolar substances, while other solvents can only dissolve one or the other. Acetone’s chemical makeup includes elements that are both polar and nonpolar which means acetone can be used with both organic and inorganic substances.
Does vinegar dissolve sugar?
But acetic acid reacts only with certain kinds of substances—and sugar isn’t one of them. In fact, candy might dissolve more slowly in vinegar, since the acetic acid molecules don’t dissolve sugar as well as water does. Acids don’t break up components in your food like carbohydrates (such as sugar) or fats.
What other solvents can sugar be dissolve?
Sugar dissolves easily in water and oil does not. Water has a low solubility when it comes to oil. Since oil is not soluble in water, it will never truly dissolve. Oil and water is a mixture, not a solution.
Why does sugar not dissolve in acetone?
Wet acetone will disolve sugar because of it’s high water content, and although dry acetone will dissolve sugar, it will not do so in the way that wet acetone will. Acetone, C3H6O, is polar.
What can dissolve glucose?
Water
Is salt soluble in acetone?
Acetone and pure water are soluble in all proportions; they are completely miscible. Obviously, acetone and salt water are incompatible and therefore immiscible; they do not mix in all proportions. The dye methyl violet, which dissolves better in acetone than in water, accumulates in the acetone layer.
Does chloroform dissolve sugar?
Sparingly soluble in chloroform; slightly soluble in slightly soluble in water. For example, a polar solute such as sugar is very soluble in polar water, less soluble in moderately polar methanol, and practically insoluble in non-polar solvents such as benzene.
What are the two main ingredients in chloroform?
The ratio for making chloroform needs to be 1 part acetone to 50 parts bleach. That’s 1 teaspoon of acetone per cup of bleach. Place the bleach in the container, then add several ice cubes.
What is another name for chloroform?
Chloroform
| Names | |
|---|---|
| Preferred IUPAC name Trichloromethane | |
| Other names Chloroform Methane trichloride Methyl trichloride Methenyl trichloride Methenyl chloride TCM Freon 20 Refrigerant-20 R-20 UN 1888 | |
| Identifiers | |
| CAS Number | 67-66-3 |