Chemistry, 29.07.2019 19:00 alyssavwil233
Your boss tells you that she needs a decision by the end of the day about the machine you want to purchase for your new operation. you have four options, and your boss reminds you to be as cost-efficient as possible but that she also wants the best efficiency. which is your best option? option 1: this $5,000 machine is supplied energy at a rate of 1,900 w and does useful work at a rate of 1,786 w. option 2: this $4,500 machine is supplied energy at a rate of 1,450 w and does useful work at a rate of 1,300 w. option 3: this $4,750 machine is supplied energy at a rate of 1950 w and does useful work at a rate of 1833 w. option 4: this $4,750 machine is supplied energy at a rate of 2,000 w and does useful work at a rate of 1,822 w. a. option 1 b. option 2c. option 3 d. option 4
Answers: 1
Chemistry, 22.06.2019 02:30
When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.
Answers: 3
Chemistry, 22.06.2019 04:30
In which phase(s) do the molecules take the shape of the container?
Answers: 1
Chemistry, 22.06.2019 22:30
Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?
Answers: 3
Chemistry, 22.06.2019 23:10
Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer
Answers: 3
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