Chapter 2: Chemistry

Question 1

-occupies space and has mass
-mass differs from weight

Answer 1

matter

Question 2

-the capacity to do work
-energy to move things

Answer 2

energy

Question 3

the energy that a body possesses by virtue of being in motion. By the reason of its motion

Answer 3

kinetic energy

Question 4

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors

Answer 4

potential energy

Question 5

• stored in bonds of chemical substances
  -chemical reactions occur such as ATP

Answer 5

chemical energy

Question 6

-the movement of charged particles
-we are electric

Answer 6

electrical energy

Question 7

-Energy used directly to move matter

Answer 7

mechanical energy

Question 8

-electromagnetic spectrum

Answer 8

radiant or electromagnetic energy

Question 9

-plain film
-“real-time”
*contrast studies (barium enema)
*fluoroscopy
*angiograms

Answer 9

X-Rays

Question 10

what is converted from one form to another?

Answer 10

energy

Question 11

…. is a by the production of energy conversions contributing to our body temperature.

Answer 11

heat

Question 12

…. is the release of heat from muscles with their use of energy.

Answer 12

biggie

Question 13

-forms elements
-atoms and elements have unique physical and chemical properties
-1-2 letter symbol for elements

Answer 13

Atoms

Question 14

positively charged particles in the nucleus

Answer 14

Protons

Question 15

neutrally charged particles in the nucleus

Answer 15

Neutrons

Question 16

negatively charged particles in outer shell

Answer 16

Electrons

Question 17

• Number of P+ in the nucleus
  -the same number of E-
  -written with a small number to the lower left -1H

Answer 17

atomic number

Question 18

average of the weight of all isotopes

Answer 18

atomic weight

Question 19

atoms with different numbers of neutrons in the nucleus (changes in mass number)

Answer 19

isotopes

Question 20

2 or more atoms make up (same or different)

Answer 20

molecule

Question 21

different atoms make up….?

Answer 21

molecules of a compound

Question 22

solvent and solutes in specific concentrations

Answer 22

solution

Question 23

(emulsions) milky and can change from solid to liquid

Answer 23

colloids

Question 24

-chemically inert or nonreactive
-outermost energy level or shell is full or contains 8E

Answer 24

Noble gases

Question 25

atoms outermost energy level that will bond with another atom

Answer 25

valence shell

Question 26

-atoms lose and gain electrons
-usually salts and crystals

Answer 26

ionic bonds

Question 27

-shared electrons
-may share one or more, chemically written with lines according to the number of E- shared

Answer 27

covalent bonds

Question 28

-bind atoms together with a hydrogen bond
-does not form a molecule
-hydrogen bonds

Answer 28

hydrogen bonds

Question 29

what are the factors influencing rates of chemical reactions?

Answer 29

temperature, concentration, particle size, and catalyst

Question 30

substances that increase the rate of chemical reactions

Answer 30

catalyst