Chemistry, 22.02.2020 03:32 bibigardeax
Mastering chem If the experiment below is run for 60 s, 0.16 mol A remain. Which of the following statements is or are true? At time 0 seconds, a flask contains 1.00 mole of A and 0 moles of B. At 20 seconds, the flask holds 0.54 moles of A and 0.46 moles of B. At 40 seconds, the flask holds 0.3 moles of A and 0.7 moles of B. After 60 s there are 0.84 mol B in the flask. The decrease in the number of moles of A from t1 = 0 to t2 = 20 s is greater than that for t1 = 40 to t2 = 60 s. The average rate for the reaction from t1 = 40 to t2 = 60 s is 7.0×10−3 M/s.
Answers: 3
Chemistry, 22.06.2019 00:30
Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.
Answers: 1
Chemistry, 22.06.2019 04:20
Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h
Answers: 1
Chemistry, 22.06.2019 11:00
Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.
Answers: 1
Mastering chem If the experiment below is run for 60 s, 0.16 mol A remain. Which of the following st...
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