chem / phys Flashcards
1
Q
combustion reactions
A
reactions of substances (often hydrocarbons) with O2, producing CO2, water, and heat / light. REQUIRES O2 as a reactant
2
Q
Hess’s Law
A
Enthalpy of reaction = enthalpy of formation of products - enthalpy of formation of reactants
3
Q
what is the entropy of a pure, crystalline substance at 0K or -273C
A
entropy is 0
4
Q
oligodendrocytes
A
form myelin sheath around neurons in the CNS
5
Q
Schwann cells
A
form myelin sheath around neurons in the PNS (schwabbs shouldn’t go in ears, can use on eyes)
6
Q
ependymal cells
A
produce Cerebral Spinal Fluid in the CNS
7
Q
microglia
A
macrophages that remove debris from the CNS
