Chemistry, 17.03.2022 14:00 krystalhurst97
Select all of the following equations that represent an exothermic reaction.
C + 2S ā CS 2, ĪH = 27,550 cal
NH 3(g) + 12.0 kcal ā Ā½N 2(g) + 3/2 H 2(g)
CH 4 + 2O 2 ā CO 2 + 2H 2O + 212,800 cal
2H 2O ā 2H 2 + O 2, ĪH = +58 kcal
C (graphite) ā C (diamond), ĪH = - 0.45 kcal
Answers: 2
Chemistry, 21.06.2019 22:30
Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?
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Chemistry, 22.06.2019 10:00
3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?
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Chemistry, 22.06.2019 20:30
We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?
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Chemistry, 22.06.2019 20:30
Water undergoes a large change in density at 0 ā c as it freezes to form ice. calculate the percent change in density that occurs when liquid water freezes to ice at 0 ā c given that
Answers: 2
Select all of the following equations that represent an exothermic reaction.
C + 2S ā CS 2, ĪH = 2...
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