Two different metals, each with a mass of 50.0g, are placed so they directly touch each other. Metal A has a higher initial temperature than Metal B. You calculate the value of q (the heat content) of Metal A correctly as 300 calories. Which statement is true about the heat flow between metal A and Metal B, assuming there is no other heat loss? • Metal A will gain 300 calories and Metal B will lose 300 calories
• Metal A will lose 300 calories and Metal B will gain 300 calories
• Metal A will gain 200 calories and Metal B will lose 100 calories
• Metal A will lose 200 calories and Metal B will gain 100 calories

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml

Molecular iodine, i2(g), dissociates into iodine atoms at 625 k with a first-order rate constant of 0.271 s−1. part a part complete what is the half-life for this reaction?

Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon