The changing of solid state into liquid state is fusion while the minimum temperature at which the solid state changes into liquid state at normal atmospheric pressure is called its melting point.

Melting point: The constant temperature at which a solid changes into liquid is called melting point. The constant temperature at which a liquid starts changing into gas is called boiling point.

Dry ice is the common name for the solid form of carbon dioxide. It ‘s called dry ice because it doesn ‘t melt into a wet liquid. Dry ice sublimates, which means it goes from its solid form directly to its gaseous form.

no more changes are detected in their melting point range. Mixed Melting Point. If two substances melt at the same temperature, a Mixed Melting Point determination can reveal if they are one and the same substance.

Pure crystalline compounds usually have a sharp melting point. That is, the melting point range-the difference between the temperature at which the sample begins to melt and the temperature at which the sample is completely melted-is small (narrow). If the two are identical, they should have the same melting point.

A mixed melting point can be taken, by measuring the melting point of a sample composed of roughly equal volumes of the unknown product and of known 3-nitrobenzaldehyde (ground together well with a mortar and pestle, as in Figure 6.18a).

False, two pure compounds can have the same melting point. An example of this would be m-toluamide and methyl-4-nitro benzoate, which both have a melting point of 94-96°C.

Melting point: The temperature at which a solid turns into a liquid. The melting point of water is dependent of the pressure above the ice (solid water), and the melting point or freezing temperature decreases with increasing pressure. By definition 0 °C is at the melting point of water at 1 atmosphere pressure.

Chemical is not classified as matter.

An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. A substance that dissociates into ions in solution acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate are examples of electrolytes.

Matter occurs in four states: solids, liquids, gases, and plasma. Often the state of matter of a substance may be changed by adding or removing heat energy from it. For example, the addition of heat can melt ice into liquid water and turn water into steam.

Color, phase, odor and boiling point are the physical properties. Reactivity with oxygen depends on the chemical nature of object, thus, it is not a physical property.