vocab
what is photosynthesis
Whats the process by which plants, algae, and some bacteria use sunlight, water, and carbon dioxide to create oxygen and sugar?
what is thermochemistry
Whats a balanced chemical equation that represents the energy changes from a system to its surroundings?
Whats melting ice cubes
Whats Endo
What is not true about bond energies
Whats All bonds are hard to break
Whats a closed system
A system in which no matter is allowed to enter or leave
what are products
What's the substances that are formed as a result of a chemical reaction?
Can humans do photosynthesis?
Whats No
Whats burning a candle
Whats Exo
What specificaly determines how much energy is available in a molecule
The number of atoms in the molecule
Whats an open system
A system in which matter can enter or escape to the surroundings.
what are reactans
What is the substances that participate in a chemical reaction?
what is exothermic reaction
Whats a chemical reaction that releases energy by light or heat?
Whats evaporating liquid water
Whats Endo
What absorbs heat "endothermic or exothermic"
Whats endothermic
what is Observed evidence
Give us clue to helps us identify if a chemical or physical change has occurred because we can see if new matter is or is not formed. Evidence that you can SEE. This can be discovered by using the 5 senses.
What is thermal energy
Whats the energy contained within a system that is responsible for its temperature?
Where does radiant energy come from?
Whats The sun
Whats the combustion of fuels like wood or gasoline
Whats Exo
what releases heat "endothermic or exothermic"
Whats exothermic
whats precipitation
A solid that forms from a solution during a chemical reaction.
what is radiant energy
whats energy transmitted through electromagnetic waves, like light, X-rays, or radio waves, which can travel through a vacuum without needing a physical medium to carry it?
whats an endothermic reaction
Whats any chemical reaction that absorbs heat from its environment?
Whats the conversion of frost to water vapor
Whats Endo
What topic is this
thermal energy in chemical reactions
What is kinetic energy
the energy an object has due to its motion