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Chinook salmon are able to move upstream faster by jumping out of the water periodically; this behavior is called porpoising. Suppose a salmon swimming in still water jumps out of the water with a speed of 6.26 m/s at an angle of 30°, sails through the air a distance L before returning to the water, and then swims a distance L under water at a speed of 3.70 m/s before beginning another porpoising maneuver. Determine the average speed of the fish.
however, it takes more CaCl2 to form a White solid in one of the solutions than the other. Using the data from your experiment to help, explain what is happening when CaCl2 is reacted with the NaHCO3 (aq) or Na2CO3 (aq) solutions.
If 37.50 ml of 0.02M permanganate was required, calculate the percentage of iron and Fe2O3 in the sample
The free induction decay of a single kind of proton is an exponentially decreasing cosine wave. Explain how this signal is obtained. How do we convert this signal into an NMR spectrum. What does the spectrum look like
How many molecules of oxygen react with 133 molecules of acetylene (HCCH) to produce carbon monoxide and water
calculate the ph at the equivalence point for the titration of 0.20 m aniline c6h5nh2 kb 3.8 x 10-10 with 0.20 m hcl.
methanol ch3oh is used as a fuel in race cars.a write a balanced equation for the combustion of liquid methanol in
Explain the effect on the observed temperature reading if the bulb is placed below the opening to the condenser
A white solid, soluble in water and alcohol but not in toluene, does not melt when heated to 250°C. However, upon prolonged heating of the solid a colorless gas evolves and the amount of solid "shrinks". The solid appears in the list of pure subst..
What is the percentage strenght of a solution prepared by dissolving 60 g of potassium chloride in 150 ml of water
q1.if 21.64ml of 9.44times10-4m kmno4 solution is required for the titration calculate how many mgs of ca2 are present
To identify a diatomic gas () a researcher carried out the subsequent experiment: She weighed an empty 4.6- bulb, then filled it with the gas at 1.80 and 24.0 and weighed it again. The difference in mass was 9.5. Classify the gas.
What happens to an egg white when it is fried? Think about and describe changes that you can see and those that you cannot see without a high-powered microscope
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