(2)Calculate the pH for a buffer solution that is 0.05 M in ethyl amine (CH3CH2NH2) and 0.137 M in ethyl ammonium chloride (Cl- CH3CH2NH3+). Ka for ethyl ammonium chloride = 2.31 X10-11 Select one: a. 10.2 b. 12.3 c. 11.6 d. 13.0

Нурothesis Theory Law Answer Bank Scientists, after many experiments, An untested explanation. An explanation that has been A doctor thinks, but has explain how the temperature of a gas tested and verified. not verified, why a patient depends on the energy of its molecules. has stomach pain. A description that predicts what happens, but does not explain how.

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True or False. Refer to the illustration showing kinetic energy distributions in reactant molecules. The kinetic energy Ea represents the average kinetic energy of the reactant molecules.

Sodium oxalate reacts with calcium chloride.  What is the sum of the coefficients for the reactants and products?   8 9 5 7 6

List the five classes of fires.

▾ Part A As a liquid metal such as mercury is cooled below its freezing point, what happens to the average kinetic energy of the atoms? ○ The average kinetic energy decreases. ○ The average kinetic energy increases. ○ The average kinetic energy does not change. Submit Part B Request Answer As a liquid metal such as mercury is cooled below its freezing point, what happens to the average distance between the atoms? ○ The average distance between the atoms increases. ○ The average distance between the atoms decreases. ○ The average distance between the atoms does not change. Submit Request Answer