Chemistry, 13.12.2019 04:31 brokegirlyy
Afuel gas containing 74.0% methane, 12.0% ethane, and 14.0% propane by volume flows to a furnace at a rate of 1450 m3/h at 25.0°c and 210.0 kpa (gauge), where it is burned with 16.0% excess air. calculate the required flow rate of air in scmh (standard cubic meters per hour). you may take the composition of air to be 21.0 mol% o2 and the balance n2.
Answers: 3
Chemistry, 22.06.2019 06:00
In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit
Answers: 2
Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
Chemistry, 23.06.2019 01:00
Which is true concerning the products and reactants of photosynthesis and cellular respiration? a. the products of photosynthesis are sugars and the reactants of cellular respiration are starches. b. the products of photosynthesis are reactants in cellular respiration. c. oxygen is needed for photosynthesis and is given off in cellular respiration.
Answers: 2
Afuel gas containing 74.0% methane, 12.0% ethane, and 14.0% propane by volume flows to a furnace at...
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