Wood reacts with the oxygen in air and burns. But a pile of wood sitting next to a fireplace doesn't randomly start burning. You have to start the fire. Why do you think this is the case? *

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates

Which statement best describes the he properties of iconic compounds ?