How the aluminum metal reacts with iron
Estimate the heat (in KJ) of a reaction when 10g of aluminum metal reacts with iron (III) oxide in the reaction shown below?
2Al (s) + Fe2O3(s) --> Al2O3(s) + 2 Fe(s); H rxn= -851.5kJ
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What will be the concentration of iron in this new solution when the 5.00 ml of a solution containing 4.00 x 10-2M iron is placed in a 100.0 ml volumetric flask and filled to the mark with deionized water,
A buffer is prepared by dissolving the 47.13g of Na2C6H4NO2 (NaNic) in the 1.25 L of solution of 0.295 M of HC6H4NO2
The psychologist claims that mean age at which children begin talking is 12.8 months. Determine critical values for the hypothesis test
Determine the stereo chemical configuration of the enantiomer of (3S, 4S)-3-chloro-4thyloctane? Give the stereo chemical configuration of a diastereomer of (3S, 4S)-3-chloro-4-ethyloctane. (no structure drawing is necessary)."
At a particular university it has been found that 20% of the students withdraw without completing the introductory statistics course. Assume that 20 students have registered for the course this quarter.
Fourteen seconds later, the rocket's parachute opens, and the (downward) velocity slows linearly to -18ft/s in 5 s. A model rocket is fired vertically upward from rest.
Describe how many grams of aluminum are in 25.0g of aluminum oxide (Al2O3)?Determine how many grams of iron are in 21.6g of iron (III) oxide (Fe2O3)?
The icosahedron die has twenty sides numbered 1 to 20. Die is rolled once. Find the probability that upward face illustrates number divisible by 2?
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