Chemistry, 19.01.2020 03:31 rsoriano9826
Ahypothesis which appears to be verified by multiple experiments and/or researchers may become a what? principle, working hypothesis, law, or theory
Answers: 1
Chemistry, 21.06.2019 21:30
Aphysical reaction is a process in which one or more reactants change into one or more products with different properties. select the best answer from the choices provided t f
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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.)
Answers: 3
Chemistry, 22.06.2019 13:00
What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.
Answers: 3
Chemistry, 22.06.2019 13:30
Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.
Answers: 2
Ahypothesis which appears to be verified by multiple experiments and/or researchers may become a wha...
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