Which of these is true of a chemical reaction?
a. energy is always absorbed
b. en...
Chemistry, 04.12.2019 21:31 kieran1982
Which of these is true of a chemical reaction?
a. energy is always absorbed
b. energy is either released or absorbed
c. energy is not transferred
d. energy is always released
Answers: 1
Chemistry, 21.06.2019 12:30, I1YBYY
Infants born with severe respiratory problems are sometimes given liquid ventilation: they breathe a liquid that can dissolve more oxygen than air can hold. one of these liquids is a fluorinated compound, cf3(cf2)7br. the solubility of oxygen in this liquid is 66 mlo2 per 100 ml liquid. in contrast, air is 21 % oxygen by volume. calculate the moles of o2 present in an infant's lungs (volume: 12 ml ) if the infant takes a full breath of air. assume a pressure of 1 atm in the lungs.
Answers: 1
Chemistry, 22.06.2019 19:00, QuestionsAnsweredNow
Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?
Answers: 3
Mathematics, 18.03.2020 16:46
Engineering, 18.03.2020 16:47