Why does gold sink and wood float when they have similar volumes?

Define dew point. i am writing this part to be able to ask the question

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 empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5