quiz 2+3

Question 1

atom

Answer 1

smallest particle of an element that has all the properties of an element

Question 2

boiling point

Answer 2

temperature at which liquid turns to gas, physical property

Question 3

covalent bond

Answer 3

formed between two atoms by the sharing of electrons

Question 4

density

Answer 4

d = m/v

Question 5

electron

Answer 5

negative charge, determine the atoms chemical properties

Question 6

heterogeneous

Answer 6

components are not uniform throughout, 2 or 3 distinct phases present

Question 7

homogeneous

Answer 7

composition is uniform and every part of the solution has the same properties

Question 8

neutrons

Answer 8

electrically neutral which stabilize the nucleus by serving as a neutral buffer between multiple protons

Question 9

protons

Answer 9

positive charged and define the entire charge of a nucleus-and defines its chemical identity

Question 10

solubility

Answer 10

measure of how well a solute mixes with a solvent, physical property

Question 11

amphoteric

Answer 11

can acts as both an acid and a base in aqueous solution

Question 12

decomposition

Answer 12

separation of compounds into simpler substances by the action of microbial and/or autolytic enzymes

Question 13

diffusion

Answer 13

movement of molecules or other particles in solution from an area of greater concentration to an area of lesser concentration until uniform concentration is reached

Question 14

hemolysis

Answer 14

process leads to postmortem stain and rupture? of erythrocytes

Question 15

hydrogen bonding

Answer 15

non chemical bond that creates surface tension

Question 16

hydrolysis

Answer 16

chemical reaction in which a substance is broken down or dissociated by water

Question 17

minerals

Answer 17

water soluable minerals is what makes water hard

Question 18

osmosis

Answer 18

passage of a solvent from an area of lesser concentration to an area of greater concentration through a semi permeable membrane

Question 19

post mortem caloricity

Answer 19

a chemical change

Question 20

surfactants

Answer 20

chemicals that will reduce the molecular cohesion of a liquid and thereby enable it to flow through smaller openings

Question 21

vehicle

Answer 21

liquids that serve as solvents for the components of embalming fluids and solutions