chapter 1 and 2

Question 1

organic chemistry

Answer 1

all chemicals containing carbon

Question 2

inorganic chem

Answer 2

do not contain carbon

Question 3

biochemistry

Answer 3

study of processes that take place in organisms

Question 4

analytical chem

Answer 4

focuses on the composition of matter

Question 5

physical chem

Answer 5

the mechanism, rate, and the energy transfer that occurs when matter undergoes a change

Question 6

pure chemistry

Answer 6

pursuit of chemical knowledge for its own sake

Question 7

applied chemistry

Answer 7

research that is directed towards a pratical goal of application

Question 8

macroscopic

Answer 8

objects large enough to see with the unaided eye

Question 9

microscopic

Answer 9

objects that can be seen only under magnification

Question 10

biotechnology

Answer 10

applies science to the production of biological products

Question 11

pollutant

Answer 11

a material found in air, water, or soil that is harmful to humans

Question 12

scientific method

Answer 12

observations, hypothesis, experiment,

Question 13

maniuplated varibale

Answer 13

variable that you change

Question 14

responding variable

Answer 14

variable that is observed

Question 15

theory

Answer 15

well tested explanation for a braod set of observations

Question 16

sicentific law

Answer 16

concise statement that summarizes the results of many observations

Question 17

mass

Answer 17

amount of matter the object contains

Question 18

volume

Answer 18

space occupied by the object

Question 19

extensive property

Answer 19

depends on the amount of matter in a ample (mass, volume, length)

Question 20

intensive property

Answer 20

depends on the type of matter (density, color, luster)

Question 21

substance

Answer 21

matter with a uniform and definite composition

Question 22

physical property

Answer 22

can be observed without changing composition (hardness, color, conductivity)

Question 23

solid

Answer 23

definite shape and volume

Question 24

liquid

Answer 24

indefinite shape and flows yet has a fixed volume

Question 25

gas

Answer 25

tkaes botht he shape and volume of its container

Question 26

vapor

Answer 26

gaseous state of a substance that is generally a liquid of a solid ar room temp

Question 27

phase

Answer 27

any part of a sample with uniform composition and proterties

Question 28

filtration

Answer 28

separates a solid from a liquid in a heterogeneous mixture

Question 29

distillation

Answer 29

a liquid is boiled to produce a vapor that is then condensed into a liquid

Question 30

element

Answer 30

simplest form of matter

Question 31

compound

Answer 31

substance that contains two or more elements chemically combined (can be broken down)

Question 32

chemical change

Answer 32

change that produes matter with a different composition than the original

Question 33

during a chemical change

Answer 33

the composition always changes

Question 34

reactant

Answer 34

substance present at the start of a reaction

Question 35

product

Answer 35

substance produced in a reaction

Question 36

clues of a chemical change

Answer 36

transfer of energy, change in color, gas, precipitate

Question 37

law of conservation

Answer 37

mass = mass