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This is a PHYSICAL SCIENCE QUESTION: You should write a paragraph that describe a time during your high school science class when you were curious about something in nature and DESCRIBE how you investigated it. In a second paragraph imagine If you were a professional scientist, could you think of a model, system, or theory on how you would describe or represent this real-world phenomenon that you investigated? Please give a brief fact to go with your statement and provide the cited source. At the end, ask a scientific question for someone else to answer.
A 25.0 mL sample of a solution of the weak base aniline, C6H5NH2, requires 25.67 mL of 0.175 M HCl to reach the equivalence point. (Kb for aniline = 4.0 x 10-10)
How can you calculate the quantitative precipitation of barium in a solid mixture of sodium chloride and barium chloride
Construct a plot of the Gibbs free energy of this system as a function of partial pressures of BrCl as the reaction approaches equilibrium.
A red laser pointer emits light with a wavelength of 650 nm. What is the energy (in J) of a photon of light of this wavelength?
describe the role of the citric acid cycle as a central metabolic mechanism. explain what happens to the cells
The volume of fluorine gas required to react with 2.67 g of calcium bromide to form calcium fluoride and bromine at 41 ºC and 4.31 atm is how many mL
Problem- Designate the Bronsted-Lowry acid and the Bronsted-Lowry base on the left side of the equation below, and also designate the conjugate acid and the conjugate base on the right side.
An insulated piston is compressing a perfect gas, suddenly the piston stops compressing the gas since there is no heat exchange to external environment, will the piston compress, expand, or stay the same and why?
Draw the structure of the compound identified by the following simulated 1H and 13C NMR spectra.
What is the theoretical yield of AgCl if 30.2 mL of 0.1000 M AgNO3 reacts with an excess of 0.1000 M HCl
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?
lead sulfide pbs commonly called galena has the same formula as zns. does pbs have the same solid structure as zns? if
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