Chemistry, 13.05.2021 03:40 jesussaves333
Which of the following reactions is exothermic? A. light + 6CO2 + 6H2O → C8H12O6 + 6O2 B. 2HgO (s) + heat → 2Hg(I) + O2(g) C. Mercury oxide plus heat yields mercury and oxygen D. None of the reactions are exothermic.
Answers: 3
Chemistry, 22.06.2019 10:30
Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2
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Chemistry, 22.06.2019 12:00
What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?
Answers: 1
Chemistry, 22.06.2019 21:30
Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. ● a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.
Answers: 1
Chemistry, 22.06.2019 22:30
What methods could you use to solubilize calcium carbonate
Answers: 1
Which of the following reactions is exothermic? A. light + 6CO2 + 6H2O → C8H12O6 + 6O2 B. 2HgO (s) +...
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