Chemistry, 30.09.2019 06:30 Bra1nPowers
Δh for the formation of rust (fe2o3) is -826 kj/mol. how much energy is released in the formation of 5 grams of rust?
a. -25.9 kj
b. 25.9 j
c. -66 kj
d. 66 j
Answers: 3
Chemistry, 22.06.2019 05:30
What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion
Answers: 1
Chemistry, 22.06.2019 08:00
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
Answers: 2
Chemistry, 23.06.2019 01:30
Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?
Answers: 1
Δh for the formation of rust (fe2o3) is -826 kj/mol. how much energy is released in the formation of...
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