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Which of the following statements about heat is false? A) If heat flows into a system, the extra energy of the system appears in the form of internal energy. B) A hot object possesses more heat than a cold object. C) If the system and surroundings are in thermal equilibrium, there is no heat flow between them. D) A process in which heat flows out of a system is said to be exothermic. E) Heat is a form of energy flow.
Formic acid, shown below, is a monoprotic acid, circle the acidic hydrogen. write the formula of the conjugate base after the acidic hydrogen is lost?
A 250 gram sample of water at the boiling point had 64.0 kJ of heat added. How many grams of water were vaporized. Heat of vaporization for water is 40.6 kJ/mole
If a person produces and exudes polyunsaturated oil from their skin, how does it ultimately make clothes smell bad, and how does baking soda remove the odor?
the synthesis of ammonia via the haber reaction follows the balanced equation3 h2g n2greg 2 nh3gdh -99.22 kjhow much
How do you prepare 2-Bromo-2-phenylpropane from benzene. Using Alcl3 as one of the reagents and going through an intermediate.
It takes 54.0 J to raise the temperature of an 11.7 g piece of unknown metal from 13.0C to 25.0C}. What is the specific heat for the metal?
A student adds 0.1 mol of oxalic acid (H2C2O4) and 0.1mol of sodium dihydrogen phosphate to enough water to make 1.0L of solution. The following equilibrium is established with Kc from this reaction greater than 1
Adrenaline is a hormone released in response to physical and mental stress. A solution is prepared with 1.5g of adrenaline in 175g. of CCl4 (Tf= -22.3 degrees celcius and Kf = 29.8 C/m.) The freezing point of the solution was determined experiment..
What is the theoretical yield of PH3, when 150 g of Na3P is mixed with 250 grams of water? If the actual yield is 30 g, what is the % yield?
What are the values of delta H and delta S for dissolution of PbI2? PbI2 (s) --> Pb^(2+) (aq) + 2I^(-) (aq) You may assume that delta H and delta S are independent of temperature.
Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell.
What is the change in the internal energy of the system as the system travels down the isotherm from state A to state C? Change in internal energy down the isotherm = 0.000
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