Chemistry, 18.03.2021 03:20, stevewu168168
PLEASE HELP))
2. (04.01 LC)
Fill in the blank with the correct number to balance the equation: 4A1 + 02 - 241203. (Enter only a whole number.) (3 points)
Answers: 2
Chemistry, 21.06.2019 14:10, coralstoner6793
Which of these will change if the air in aclosed bottle is heated? abcdthe mass of the airthe composition of the airthe air pressure in the bottlethe number of air molecules in the bottle
Answers: 3
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 13:30, nasibamurodova
What are the chemical names of these compounds? ke: mg3n2: reset next
Answers: 1
PLEASE HELP))
2. (04.01 LC)
Fill in the blank with the correct number to balance the equation...
Fill in the blank with the correct number to balance the equation...
Mathematics, 19.01.2021 14:00
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