melting and boiling points造句

• Melting and boiling points generally increase going down the group.
• This substance is characterized by high melting and boiling point.
• Discrete metal halides have lower melting and boiling points.
• BFCs tend to have higher melting and boiling points than comparable fully fluorinated molecules.
• Similar melting and boiling points are also important if the drug is to be smoked.
• The melting and boiling points correlate with the polarity of the molecules and their molecular weight.
• Thus, the melting and boiling points of bromine are intermediate between those of chlorine and iodine.
• Perhaps a plot could be added showing how the melting and boiling points change throughout the series.
• Polarity underlies a number of physical properties including surface tension, solubility, and melting and boiling points.
• Repeated the same pattern of vandalism on ( E )-Stilbene fiddling with its melting and boiling points.
• All three elements are typical silvery-white transition metals, hard, and have high melting and boiling points.
• Such weak bonding leads to low melting and boiling points, which is related to the fact that it is a distillable liquid.
• Polymeric metal halides generally have melting and boiling points that are higher than monomeric metal halides, but lower than ionic metal halides.
• These properties include its relatively high melting and boiling point temperatures : more energy is required to break the hydrogen bonds between water molecules.
• Ionic compounds have high melting and boiling points due to the large amount of energy required to break the forces between the charged ions.
• Crystals of different hydrazones have characteristic melting and boiling points, allowing the identity of a substance to be determined in a method known as derivatization.
• The hydrogen bonds are also the reason why the melting and boiling points of water are much higher than those of W / m / K ).
• Perfluoroaromatic compounds are relatively volatile for their molecular weight, with melting and boiling points similar to the corresponding aromatic compound, as the table below shows.
• These tests often involved mashing or liquifying tissue, followed by such tests as crystal formation, melting and boiling point analysis, color reactions, and titration.
• A few key properties, such as its melting and boiling points and its first ionization energy, are nevertheless expected to follow the periodic trends of the halogens.