Could you help me please thr other side that is cut off is tue same thing

Based on the equation and the information in the table, what is the enthalpy of the reaction?

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

When would a bouncy ball have the most potential energy