Using the bond enthalpies, calculate the enthalpy of reaction for the above compound. Based on the determined enthalpy of reaction, how many grams of C2H6O will be reacted if 2.75X10^4 J of energy are absorbed?

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

How can the periodic table be used to predict the behavior of elements?