The spoon is too hot to touch after sitting in the hot soup is it conduction, convection, or radiation)

How do you know when a chemical reaction has occurred

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy

State the effect on the concentration of the clo- ion when there is a decrease in the concentration of the oh- ion