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Explain what happens to the temperature of an ice cube as it melts?
Temperature of melting iceis a constant property: it does not change during melting (stays 0oC, this is even one of the the defined value of the Celsius temperature scale)(for any other melting solid the same is valid at each melting point temperature)
Sketch a phase diagram for water and label the melting point and boiling point at 101.3kPa?
explain how the student could now us the thermistor as a thermometer
The freezing point and boiling point for matter is a constant Explain this meaning of constant?
It means that the freezing or melting points do not change, that they are always the same, depending on the type of matter. For eg. the melting point or freezing point of water is 0○ Celsius and the boiling point is always 100○C.
Why do plastics have a lower melting point than metals explain in terms of chemical bonding?
Metals have metallic bonds which plastics lack.Plastics lack delocalised electrons that are found in metals.
Which term is defined as the process by which a substance changes state from solid to liquid-?
melting
Explain why there is this pattern in melting points for francium?
The melting point of francium is not measured, only supposed by comparison with the melting points of the other alkali metals.
NH3 is easily liquified than HCl explain?
The melting point of HCl is -114,22 oC and the melting point of NH3 is -77,73 oC.
Which philosopher used the example of a candle melting to explain change of being?
Descartes
Which material has higer melting point NaCl or sugar explain?
Generally inorganic ionic salts have higher melting points than organic materials; the bonds are stronger.
Which property of calcium oxide does the lattice structure explain?
according to my calculations it explains the high melting point
How does the arrangement of ions in a solid help to explain the high melting points of most ionic compounds?
catfish
What is the point of Pewter What is the melting point of Acrylic Explain in detail why the acrylic does not melt when the molten pewter is poured into the mould Why is MDF and hardboard used to make t?
what is the melting point of pewter
Explain why burning butter is a chemical change but melting is not?
Melting: change of phase, a physical phenomenon without change of the composition. Burning: a reaction of oxydation, a change of composition - a chemical change.
Explain what happens to the temperature of an ice cube as it melts?
Temperature of melting iceis a constant property: it does not change during melting (stays 0oC, this is even one of the the defined value of the Celsius temperature scale)(for any other melting solid the same is valid at each melting point temperature)
Is America truly is a melting pot in 2011 explain.?
yes, never has there been such a collection of different races and cultures in one country.
Explain whyIn Group 17 HF has abnormally high melting and boiling points as compared to other hydrides of the group?
Hydrogen bonding.
Explain how the trends in melting point and boiling point differ from the other periodic trends?
Instead of generally increasing or decreasing trend, melting and boiling points reach two different peaks as d and p orbitals fill. -Darryn
