Please help due today

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

When does your body conduct current more readily?

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