KnowledgeKnack

Ace Every Assignment

Latest Questions

You have 2.2 mol Xe and 2.1 mol F2, but when you carry out thereaction you end up with only 0.25 mol XeFg. What is the percentyield of this experiment?Xe(g) + 2 F2 (g) XeF, (g)
1 Answer
I NEED HELP!! ..Independent Practicex y-2 13 68 11For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.A.yes; y= 1/2xB.yes; y= 1/2xC.yes; y= 11/8xD.noTHE ANSER IS NOT LETTER C. yes; y= 11/8x
1 Answer
Based on the map, list two modern-day countries in Africa that Zheng He would have made contact with on his voyages.Does this make sense?
2 Answers
A machine raised a load of 360N through a distance of 0.2m. The effort, a force of 50N moved 1.8m during the process. Calculate the efficiency of the machine.Select one:a. 40%b. 100%c. 80%d. 60%
1 Answer
what is an effect when valentinian ii was found dead in the palece
1 Answer
which answer is right?
2 Answers
Find the measure of angle A
1 Answer
Charlie split 78pounds of andy among 4 people. What is the unit rate in pounds per person?
1 Answer
The sum of two numbers is 16 . When the second number is subtracted from the first number, the difference is 8. Find the two numbers.
2 Answers
Choose the angle which is vertical to in the following figure.
1 Answer
What is it that we are striving for? What is it worth? What motivates you to keep going?
1 Answer
1) A line passes through the points (7,4) and (-5, - 2). Which of thefollowing equations BEST defines this line?
1 Answer
Was McCarthyism a witch hunt?
1 Answer
Find the total surface area of the prism below
1 Answer
When a magnetic field is first turned on, the flux through a 20-turn loop varies with time according to m=5.0t22.0t, where m is in milliwebers, t is in seconds, and the loop is in the plane of the page with the unit normal pointing outward. (a) What is the emf induced in the loop as a function of time? What is the direction of the induced current at (b) t = 0, (c) 0.10, (d) 1.0, and (e) 2.0 s?
1 Answer
Who has the most power in Australia?A. QueenB. presidentC. Governor-generalD. prime minister
1 Answer
Why would a company invest in a time-study analysis?A. O To diversify the workforceB. O To improve efficiencyc. To reduce the amount of goods in storageTo improve relations with inventory suppliers
2 Answers
Explain Business Management Definition
1 Answer
A rectangle has an area of 1008square feet. Its width is six feet lessthan twice the length. Find themeasures of the length and width ofthe rectangle.
1 Answer
when would Air displacement Plethysmography be used?
1 Answer
Which one of the following statements is TRUE? a. The supervisor-employee relation between a production line supervisor and a production line operator is an example of an agency relationship. b. An example of an agency relationship is when the CEO nominates a slate of candidates to be on the board of directors. c. An example of an agency relationship is when a supervisor hires a forklift operator. d. In an agency relationship, the principal delegates decision-making authority to the agent. e. In an agency relationship, the agent delegates authority to the principal."
1 Answer
Lab: Limiting Reactant and Percent Yield Student GuidePre-Lab InformationPurpose Explore the yield of a chemical reaction by identifying the limiting reactant, comparing the theoretical and actual yields, and explaining the sources of error.Time Approximately 45 minutesQuestion While observing a chemical reaction, how can you tell which reactant is limiting?Reaction The reaction of copper(II) chloride and aluminum is shown in this balanced equation:3CuCl2 + 2Al 2AlCl3 + 3CuHypothesis If a substance is the limiting reactant, then it will be fully consumed by the time the reaction completes because it is the reactant that reacts completely and the reaction cannot proceed further.Summary You will react copper(II) chloride with different quantities of aluminum in two trials. You will also calculate percent yield for Trial 2.
2 Answers
A turntable, with a mass of 1.5 kg and diameter of 20 cm, rotates at 70 rpm on frictionless bearings. Two 540 g blocks fall from above, hit the turntable simultaneously at opposite ends of a diameter, and stick to it.Required:What is the turntable's angular speed, in rpm, just after this event?
1 Answer
Find the value of x
2 Answers