Help Spend time observing or thinking about events that involve matter and energy. Which events can you explain? Which events can’t you explain? Now answer the following questions.

Part A
Describe three events that you cannot explain.

Part B
Ask a testable question about each event you listed in part A.

Part C
Write a hypothesis for each testable question you listed in part B. Remember, a hypothesis can be proven right or wrong, so make your best guess.

Part D
Pretend you have a well-equipped lab with every testing device imaginable. What would you measure to test the hypotheses you listed in part C?

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.