1. List the observations that would indicate that a chemical reaction has occurred. 2. For C-H bond, tell which atom is more negatively charged.

3. Write word equation for the following skeleton equation.
CO(g) + O2(g) → CO2(g)

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.