EXOTHERMIC
What happens to energy?
released
What happens to energy?
absorbed
When would OPPOSITELY charged particles have the LEAST potential energy?
close together
What are substances on the left side of a chemical equation?
reactants
Define the law of conservation of matter and energy
In a closed system, matter and energy cannot be created or destroyed, but can change form
What happens to bonds?
formed
What happens to bonds?
broken
When would SAME charged particles have the LEAST potential energy?
far apart
What are substances on the right side of a chemical equation?
products
What is the element Na
sodium
What happens to temperature?
increases
What happens to temperature?
decreases
What are the three factors affecting potential energy?
distance, type of charge, amount of charge
What is an element?
substance made up of only one type of atom
Name FOUR (4) types of energy we have talked about this school year
kinetic, potential, mechanical, thermal, sound, light, etc.
Example Reaction
combustion, explosion, hydrogen balloon
Example Reaction
photosynthesis, evaporation, melting, hydrogen peroxide demo
Which gas in the balloon demos caused the fire?
hydrogen
What is a compound?
made up of two or more different kinds of atoms/elements
What two gasses were produced in the water electrolysis video?
hydrogen and oxygen gas
Energy is higher for reactants or products?
reactants
Energy is higher for reactants or products?
products
What charge was present in the sphere of the Van de Graff generator?
What is the arrow in the middle of a balanced equation called?
Yield sign
Name ONE (1) noble gas
helium, neon, argon, krypton, xenon, etc.