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Write, using correct notation, the balanced nuclear reaction equation for each of the following:
a. Electron capture by 93/43 Tc
b. Alpha emission from 214/85 At
c. Decay of 74/31 Ga to form 74/32 Ge
d. Positron emission from 198/79 Au
if 0.100 m NaCl is added slowly to a beaker containing both .120m AgNO3 and .150m Pb(NO3)2 at 25 celsius which will precipitate first AgCl or PbCl2?
What is the final pressure in the bottle for a monatomic gas, for which CV,m = 3/2R, and a diatomic gas, for which CV,m = 5/2R?
What is the difference between the fresh meat with added sodium nitrite and the meat with added sodium nitrite plus sodium erythorbate?
Calculate the mass of methane that must be burned to provide enough heat to convert 151.0 g of water at 43.0°C
A certain laser uses a gas mixture made up of 9.00 g HCL, 2.00g H2, and 165.0g Ne. What pressure is exerted by the mixture in a 75.0 L tank at 22 degree C?
What each test reveals about an unknown halide ion? Suggest another test which would confirm that identity. 1.Addition of Cl2 and CH2Cl2 to an aqueous solution of an unknown halide ion led to a dark CH2Cl2 layer.
What is the smallest amount of CuO (in moles) that would establish the equilibrium?
764 mL of chlorine gas are added to the reaction chamber at STP. How many grams of silicon metal are needed to react with this volume of chlorine gas?
solar radiation is 1200 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 for solar radiation.
A 93.7 g (5.20 mole) sample of water is heated to exactly 94.4 celsius. It is then added to 90.1 g (5.00 mole) of water at 22.5 celsius in a styrofoam cup calorimeter.
What molar ratio of sodium acetate to acetic acid (NaAc/HAc) should be used in preparing a buffer having a pH of 4.35? (Ka = 1.8×10-5 for acetic acid.)
In the manufacturing of computer chips cylinders of silicon are cut into thin wafers that are 3.00 inches in diameter and have a mass of 1.50 g of silicon
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