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Briefly describe how radiometric dating and stratigraphy can be used to determine the age of rocks. Use the terms "absolute dating", "isotopes", and "relative dating" in your response.
Problem- A patient is given 0.055mg of technertium-99 m, a radioactive isotope with a half-life of about 6.0 hours. How long does it take for the radioactive isotope to decay to 1.9 x 10^-3 mg
Write an equation to show how H2PO3- can act as a base with HS- acting as an acid. Then show H2PO3- can act as an acid with HS- acting as a base.
Covalent/ionic/atomic radius of hex-1-ene
The spacing between the lines in the microwave spectrum of H35Cl is 6.350*10^11 Hz. Calculate the bond length of H35Cl.
A typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity. Suppose that all of this electricity is generated at a power plant that burns coal containing 3.0% sulfur by mass
How many grams of silver chloride can be made by adding excess silver nitrate to react with 150.0 ml of 0.400 M Bacl2
What volume of concentrated HCl is necessary to completely neutralize the 10 mL of 1.5 M NaOH used?
Question- A 0.100 M aqueous solution of the base HB has an osmotic pressure of 2.83 atm at 25 degrees Celsius. Calculate the percent ionization
To cool a volume of water from 176° K to 100° K, 7.9 x 104 J of heat energy must be removed. What is the volume of water that was cooled?
A 4.08g sample of a compound contains 3.02g of oxygen. What is the empirical formula
Question- Calculate the pH of a buffer solution made by mixing 196 mL of a 1.78 M trimethylamine, (CH3)3N, solution with 245 mL of a 1.31 M trimethylammonium chloride, (CH3)3NHCl, solution.
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
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