Chemistry Fundamentals Flashcards Preview

Anatomy 111 > Chemistry Fundamentals > Flashcards

Flashcards in Chemistry Fundamentals Deck (10):
1

Major elements of the human body are...

Oxygen, Carbon, Hydrogen, Nitrogen

2

Define solutions...

homogeneous mixtures of components

3

Define suspensions...

heterogeneous mixtures; visible solutes might settle out (ex. blood and cytoplasm)

4

Define colloids...

heterogeneous mixtures; solutes remain in suspension (ex. plasma and cytosol)

5

Explain ionic bonds...

the transfer of electrons between atoms; form crystals; anions gained, cations lost an electron (ex. NaCl)

6

Explain covalent bonds...

the sharing of two or more electrons; form molecules; non polar molecules share equally, polar unequally

7

Explain hydrogen bonds...

weak, intramolecular bonds; give molecules three-dimensional shape (ex. in water)

8

Synthesis, decomposition and exchange reactions differ in that...

Synthesis involve bond formation; Decomposition involve bonds breaking; Exchange involve both (like a swap)

9

Exergonic reactions vs. Endergonic reactions

Exergonic reactions release energy and increase surrounding temperature; Endergonic reactions consume energy and decrease surrounding temperature

10

Factors increasing rate of chemical reactions include...

Higher temperatures, smaller particle sizes, higher concentrations and catalysts