What are the characteristics distinguishes helium (he) from the other noble gases a. helium has two valence electrons b. helium has a milky-white color c. helium has a strong odor d. helium is highly reactive

In this experiment, you will use a track, a toy car, and some washers to explore newton’s first two laws of motion. you will make observations and collect data regarding the motion of these objects. in the space below, write a general scientific question that you will answer by doing this experiment.

Apossible explanation for a set of facts that can be tested by further investigation is called

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final