2 Flashcards
define collision theory
amount of energy particles need to collide
define activation energy
minimum amount of energy needed to collide
rate of reaction depends on
frequency of collisions and the energy they collide with
ROR and concentration
increasing it means more frequent collisions as less space for movement
ROR and surface area
the smaller the surface area the more collisions
testing for hydrogen
squeaky pop sound from burning splint
testing oxygen
relight glowing splint
testing chlorine
bleaches damp litmus paper white
testing carbon dioxide
turns limewater cloudy when bubbled through
define equilibrium
forwards and backwards reaction happening at same rate
define closed system
products and reactants cannot escape and nothing can get out
define formulation
mixture designed for a spesific purpose
define peer review
other scientists check results methods and explanations to ensure their repeatable and relliable
define carbon footprint
the measure of the amount of greenhouse gases released in the full lifecycle of something
what is potable water
water thats safe to drink
