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DULU Kcal . 35. Given: C3H8 + 5O2 -> 30 How many Kjoules of heat released...
32. Which of the following is a chemical change? A) cutting a rope B) bending a steel rod C) making a snowman D) burning sugar E) melting gold 33. How many calories are required to raise the temperature of a 150. g sample of gold from 25 °C to 175 °C? The specific heat of gold is 0.0308 cal/g °C. Hint: Heat- Mass x specific heat x Temp. change A) 4.62 cal B) 116 cal zamx5. HDT f C) 22500...