Chemistry, 28.05.2020 22:59 kjmesser33
Suppose there is Avogadro's number of mini marshmallows and they are used to cover the province of New Brunswick,
which has a land area of 7.145 x 104 km². Each mini marshmallow has a diameter of 0.635 cm and a height of 2.54 cm.
Assuming the marshmallows are packed together so there is no space between them, to what height above the surface, in
kilometers, will the mini marshmallows extend?
Answers: 3
Chemistry, 21.06.2019 17:30
This is a mixture that has the same composition throughout.
Answers: 1
Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
Chemistry, 22.06.2019 23:10
Using the periodic table, complete the following. element: hydrogen symbol: hâ‚‚ molecular weight: g mass of one mole: g/mol
Answers: 3
Chemistry, 23.06.2019 07:20
F1.5 mol of nabh4 react, how many moles of b2h6 are formed? 2 nabh4(aq) + h2so4(aq) → 2 h2(g) + na2so4(aq) + b2h6(g)
Answers: 1
Suppose there is Avogadro's number of mini marshmallows and they are used to cover the province of N...
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