Chemistry, 21.08.2020 09:01 leoiscoolcool
O Math
1 point
The
Is a process that uses evidence and logic to learn about
the natural world,
O observational method
experimental method
hypothetical method
O scientific method
Answers: 2
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, 23.06.2019 05:40
Which order shows the levels of organization from largest to smallest? organism, organ system, cell, organ, tissue organism, tissue, organ system, organ, cell organism, organ, organ system, cell, tissue organism, organ system, organ, tissue, cell
Answers: 2
Chemistry, 23.06.2019 15:00
How much more basic is a solution with ph 8 than a solution with ph 7
Answers: 1
O Math
1 point
The
Is a process that uses evidence and logic to learn about
the n...
The
Is a process that uses evidence and logic to learn about
the n...
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