What is it called when a solid changes directly into gas?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Once similarity and one difference between a mixture of elements and a mixture of compounds