Factors that affect the rates

Nature of Reactants

must be compatible

Surface Area Exposed

solid into smaller pieces

Concentration of Reactants

increased pressure in gases lead to more particles

Temperature of the System

raising the temp

Presence of Catalyst

alternative reaction pathway w/ lower activation energy

exothermic (releases heat)

energy is given out to the surrounding, increasing the energy of the surroundings; has a temp increase

Endothermic

reactions in which energy is taken in during the reaction, meaning that the surroundings have less energy than they started with

Homeostasis

balance happening inside your body

cells work efficiently. keeps you alive, prevent illnesses, organs function properly

homeostasis helps

body temp, blood pressure, and blood glucose level

what are the indicators

positive feedback

increases a change until a goal is reached

negative feedback

reverses a change to return the body back to normal