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An unknown metal M reacts with sulfur to form a compound with the formula MS. If 4.37 g of M reacts with 2.51 g of S, what are the names of M and MS? Type answer using the format iron(II) sulfide for FeS.
0.60 g of hydrogen chloride HCl is dissolved in water to make 7.5 L of solution. What is the pH of the resulting hydrochloric acid solution.
Water (2290 ) is heated until it just begins to boil. If the water absorbs 5.43×105 of heat in the process, what was the initial temperature of the water?
Use the following data to estimate the normal boiling point and the molar enthalpy of vaporization of lead
a gas is produced. At 25°C and 1.00 atm of pressure, how many liters of this gas was produced from 3.45 g of sodium metal
Write the molecular, ionic, and net ionic equations for the combination of KNO3(aq) and BaCl2(aq)
Determine the theoretical mole ratio of NaCl to NaHCO3.
enough of a monoprotic acid is dissolved in water to produce a 0.0170 m solution. the ph of the resulting solution is
determine the pressure inside a container of a gas connected to an open-end manometer filled with ccl4 has the density
What would the atom ratio of 206-Pb to238-U be in a uranium mineral from a rock that is 1.0× 10^9 years old? t1/2(238-U)= 4.5 × 10^9 yr.
relation between the energy of emitted alpha particles and the half-life for the radioactive decay.
Calculate the concentration of H30+ in a solution that contains 5.5 x 10 to the -5 M OH- at 25 degrees C. Identify the solution as acidic, basic, or neutral.
Use two separate t tests to compare results from lab Coat with those from lab A and lab B at the 95% confidence level. Comments on the sensibility of the time test results.
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