Chemistry, 23.04.2020 20:31 esmeralda266
Mechanical energy is the sum of the energy of an object. A kinetic and potential B potential and thermal C kinetic and chemical D potential and chemical
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Chemistry, 21.06.2019 19:00
Which term best describes the form sound takes as it travels away from a drum (a- gas)(b-music) ( c-waves) (d-particles
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Chemistry, 22.06.2019 03:40
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.)
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Chemistry, 22.06.2019 19:00
How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy
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Chemistry, 23.06.2019 00:30
When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?
Answers: 3
Mechanical energy is the sum of the energy of an object. A kinetic and potential B potential and th...
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