When 2.0 g copper is heated with an excess of sulfur, 2.3 g of copper(I) sulfide is produced. What is the balanced chemical equation?

The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.