Water is effective at dissolving sugar due to its polar nature, but crystal meth is not very soluble in water. However, substances such as acetone or other organic solvents are more efficient at dissolving crystal meth while not dissolving sugar.
With the lack of specific conditions, all I can say is this. If it is a cube for use in soup bases, it depends on the temperatuure of the water you drop it in and the amount of agitation it will experience while dissolving.
Melting and dissolving are not the same. Melting is the process of a solid turning into a liquid due to heat, while dissolving is when a solid substance mixes with a liquid to form a solution.
Water and motor oil are immiscible because they have different polarities. Water is a polar molecule, while motor oil is nonpolar. This difference in polarity prevents water from dissolving motor oil.
It is a substance that may cease to be a solid by dissolving into it's solvent. Polar substances dissolve in water; most organic substances may be dissolved in water; while inorganic substances may only be dissolved in inorganic solvents.
The independent variables are the milk and water, while the dependent variables are the plants, because they don't change.
No, dissolving does not always involve water. Dissolving is a process where a solute mixes with a solvent to form a homogeneous mixture. While water is a common solvent that is often used for dissolving substances, other solvents such as alcohol or acetone can also be used depending on the substances being dissolved.
No, dissolving a LIFESAVER candy in warm water is not considered melting. Melting typically refers to a solid turning into a liquid due to heat, while dissolving involves a solid substance breaking down into individual molecules and dispersing throughout a solvent, in this case, water.
Water is effective at dissolving sugar due to its polar nature, but crystal meth is not very soluble in water. However, substances such as acetone or other organic solvents are more efficient at dissolving crystal meth while not dissolving sugar.
With the lack of specific conditions, all I can say is this. If it is a cube for use in soup bases, it depends on the temperatuure of the water you drop it in and the amount of agitation it will experience while dissolving.
Dissolving salt into water is a physical change because no chemical reaction takes place, while the state of matter of the salt changes.
Session Variables
Temperature: more sugar will dissolve in water at a higher temperature. The amount of water is also a factor, since more water will be able to dissolve more sugar. If you are wondering about the rate, and not simply the amount, of sugar dissolving, then the surface area of the particles is also important. The greater the surface area, the more rapidly it will dissolve (smaller grains of sugar would dissolve more rapidly than a sugar cube, for instance).
Melting and dissolving are not the same. Melting is the process of a solid turning into a liquid due to heat, while dissolving is when a solid substance mixes with a liquid to form a solution.
Vinegar is basically a solution of acetic acid in water. Therefore acetic acid is the solute and water is the solvent. See this site for information about dissolving and solutions: http://www.bbc.co.uk/schools/ks3bitesize/science/chemistry/physical_changes_8.shtml
Butane is a nonpolar molecule, while water is a polar molecule. Nonpolar molecules like butane are not attracted to the polar water molecules, making it insoluble in water. This lack of interaction between the molecules prevents butane from dissolving in water.
Water and motor oil are immiscible because they have different polarities. Water is a polar molecule, while motor oil is nonpolar. This difference in polarity prevents water from dissolving motor oil.