In this science lab, students will gain a pretty good understanding of what mass, volume, and density are. They will digitally change the volume of objects, weigh different object masses, and calculate the densities of each object. Students will use the computer and the Phet Simulation software to complete this lab.
Density is mass over volume: r= m/V. Finding the density of an object can help us to identify the object because no matter what shape it is, or what it looks like, a given material has a constant density. We would like you to validate this procedure on a specimen of
Multiple Choice (Choose the best answer.) Compare the the volumes and densities of a 10 g and a 50 g pieces of lead. The 10 g piece would have a smaller volume and a smaller density than the 50 g piece. The 10 g piece would have a smaller volume but a larger density than the 50 g piece.
Thus, for example, one mole of water contains 6.022 140 76 × 10 23 molecules, whose total mass is about 18.015 grams – and the mean mass of one molecule of water is about 18.015 daltons. The mole is widely used in chemistry as a convenient way to express amounts of reactants and products of chemical reactions.
Chemistry (from Egyptian kēme (chem), meaning "earth") is the science concerned with the composition, structure, and properties of matter, as well as the changes it undergoes during chemical reactions.
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Open pole barn pictures