A255 ml round--bonom flask is weighed and found to have a mass of 114.85 g. a few millimeters of an easily vaporized liquid are added to the flask and the flask is immersed in a boiling water bath. all of the liquid vaporizes at the boiling tempentture of water, filling the flask with vapor. when all of the liquid has vaporized, the flask is removed from the bath, cooled, dried, and reweighed. the new mass of the flask and the condensed vapor is 115.23 g. which of the following compounds could the liquid be?
a. c₄h₁₀b. c₃h₇ohc. c₂h₆d. c₂h₅ohe. c₄h₉oh

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

For a family dinner, jose’s mom baked a loaf of bread. during the meal, his grandmother commented, “this bread is so dense! ” what do you think his grandmother meant by the word dense? you have some ideas regarding density already, but this experiment will enrich your understanding of the relationship between mass, volume and the density of objects. when making measurements in this experiment we will be using si units, the international system of units. the purpose of using si units is to have the ability to communicate and compare data results with other experiments without having to make conversions. measurement symbol si unit length m meter mass kg kilogram volume l liters density kg/l kilograms per liter any calculations that are performed during this experiment will ultimately be reported in scientific notation. recall that scientific notation is extremely important when we have data that is extremely small or large. scientists rely on a standard form of communication to quickly make hypotheses and judgements based on data. what is the density of block a? a0kg/l what is the density of block b? a1kg/l what is the density of block c? a2kg/l what is the density of block d? a3kg/l what is the density of block e? a4kg/l which block is the densest? a5

37.0 °c = °f (human body normal temperature)