Chemistry, 16.03.2020 21:25, katiem7608
The table compares the characteristics of a substance in three different states of matter.
Comparison of Characteristics
Characteristic StateX State Y State Z
Average Speed of the Particles Low Greatest Least
Particle Attraction/Forces Weak. Negligible. Strong
Which of these best describes the state of the substance represented by State Z?
Answers: 3
Chemistry, 21.06.2019 13:00, demetriascott20
How are ionic bonds formed and what is the attractive force within an ionic bond
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Chemistry, 22.06.2019 03:40, allyyzz
Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)
Answers: 3
Chemistry, 22.06.2019 12:00, daytonalive83481
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Chemistry, 22.06.2019 12:30, quantamagic
Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)
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The table compares the characteristics of a substance in three different states of matter.
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