In an experiment, an iron bar, 12.og at 95.0°c, was dropped into 100 ml. h20 at 47.0°c. choose the true statement. a. the iron bar heats up. b. the water cools down. c. the iron bar gives heat to the water. d. the water gives heat to the iron bar. 8. when 10.0g of glycine (ch. no,, mm 75.1 g/mol) is combusted in a bomb calorimeter, the temperature of the 975 ml water bath rises from 22.5°c to 47.3°c, what is ah, per mole of glycine? 9. what is ah for the given chemical reaction? ch,02 (0+2 02) - 2 co2(g) + 2 h20 () ah -483 -393.5 -285.8 10. identify the oxidant (o) and the reductant (r) in the appropriate box, in this equation of reaction. 4 fe3+ + honh, n20) + 4fe2+ + 4h+ + h2o