Thermal
What does an exothermic reaction do with heat?
It gives off heat.
Name one endothermic reaction you know
Photosynthesis, melting ice, cooking food, etc
What happens to the energy of the surroundings during an exothermic reaction?
The surroundings get hotter (energy is released into them
These are at the beginning of a reaction and combine together.
What are reactants?
This is the job of enzymes in chemical reactions.
What is speed up by lowering activation energy?
What does an endothermic reaction do with heat?
It takes in heat
Which kind of reaction feels cold: endothermic or exothermic?
Endothermic.
What happens to the energy of the system during an endothermic reaction
The system takes in energy from the surroundings.
These are created in a reaction.
What are products?
This is the group of biomolecules enzymes belong to.
What are proteins?
In an exothermic reaction, does it get hotter or colder?
It gets hotter
Which kind of reaction feels warm: endothermic or exothermic?
Exothermic
In chemical equations, is energy written as a product or reactant in an exothermic reaction?
It is written as a product.
Chemical reactions ALWAYS involve breaking and reforming these?
What are bonds?
This is the "area" on an enzyme where the reactants will bind o it.
What is the active site?
In an endothermic reaction, does it feel warmer or cooler?
It feels cooler
Is a campfire exothermic or endothermic
Exothermic
In chemical equations, is energy written as a product or reactant in an endothermic reaction
It is written as a reactant
These types of reactions will NOT occur without a source of energy.
What are endothermic?
These are the 3 letters that enzyme names end with.
What is "-ase"?
Give one example of an exothermic reaction
Burning wood, fireworks, a campfire, etc
Is melting ice exothermic or endothermic?
Endothermic
What does a negative ∆T (delta temperature) mean in terms of energy change
It means the reaction releases energy (it is exothermic)
These types of reactions occur spontaneously.
What are exothermic?
These are two ways an enzyme can become denatured and stop working.
What are change in temperature and a change in pH?