Exam 1

Question 1

Designed to mimic the bodys natural release profile

Answer 1

Humalog

Question 2

Clusters of 6 insulin molecules

Answer 2

Hexamers

Question 3

The scientific method

Answer 3

Observations, hypothesis, experiments, theory

Question 4

Recording qualitative or quantitative data

Answer 4

Observations

Question 5

Explanation of observations

Answer 5

Hypothesis

Question 6

Change one variable at a time, test hypothesis

Answer 6

Experiments

Question 7

Explains experiment, predicts further outsome

Answer 7

Theory

Question 8

Amount of matter in an object

Answer 8

Mass

Question 9

Measures the force with which gravity pulls on an object

Answer 9

Weight

Question 10

How close to the true value a given measurement is

Answer 10

Accuracy

Question 11

How well a number of independent measurements agree with each other

Answer 11

Precision

Question 12

Total numner of digits recorded for a measurement

Answer 12

Significant figures

Question 13

Method that uses a conversion factor to convert a quantity expressed in one unit to an equivalent quantity in a different unit

Answer 13

Dimensional analysis

Question 14

Expresses the relationship between two different units

Answer 14

Conversion factor

Question 15

Independent of sample size, temperature and melting point

Answer 15

Intensive properties

Question 16

Dependent on sample size, length and volume

Answer 16

Extensive properties

Question 17

Characteristics that DO NOT involve a change in a sample’s chemical makeup

Answer 17

Physical properties

Question 18

Characteristics that DO involve a change in a sample’s chemical makeup

Answer 18

Chemical properties

Question 19

Left side of zig zag line except for hydrogen

Answer 19

Metals

Question 20

Right side of zig zag line

Answer 20

Nonmetals

Question 21

Lie along zig zag line

Answer 21

Semimetals, metalloids

Question 22

Mass is neither created nor destroyed in chemical reactions

Answer 22

Law of conservation of mass

Question 23

Different samples of a pure chemical substance always contain the same proportion of elements by mass

Answer 23

Law of definite proportions

Question 24

Elements can combin in different ways to form different substances, whose mass ratios are small whole-number multiples of each other

Answer 24

Law of multiple proportions

Question 25

Elements are made up of tiny particles called

Answer 25

Atoms

Question 26

Negatively charged particles

Answer 26

Electrons

Question 27

Mainly empty space with the mass concentrated in a tiny central hole

Answer 27

Nucleus

Question 28

Number of protons in an atoms nucleus. Equivalent to the number of electrons around an atoms nucleus

Answer 28

Atomic number

Question 29

Sum of the number of protons and the number of neutrons in an atoms nucleus

Answer 29

Mass number

Question 30

Atoms with identical atomic numbers but different mass numbers

Answer 30

Isotopes

Question 31

Weighted average of the isotopic masses of the elements naturally occurring isotopes

Answer 31

Atomic mass

Question 32

Mass in grams of one mole of any element. Numerically equivalent to its atomic mass

Answer 32

Molar mass

Question 33

Results when two atoms share several (usually 2) electrons. Typically nonmetal bonded to nonmetal

Answer 33

Covalent bond

Question 34

Unit of matter that results when two or more atoms are joined by covalent bonds

Answer 34

Molecule

Question 35

Transfer of one or more electons from one atom to another. Strong electrical attraction between charged particles. Typically metal bonded to nonmetal

Answer 35

Ionic bond

Question 36

Charged particle

Answer 36

Ion

Question 37

Positively charged particle.

Answer 37

Cation

Question 38

Negitively charged particle

Answer 38

Anion

Question 39

Neutral compond in which the total number of positive charges must equal the total number of negative charges

Answer 39

Ionic compound

Question 40

Helium-4 nucleus

Answer 40

Alpha particle

Question 41

An electron

Answer 41

Beta particle

Question 42

High-energy photon

Answer 42

Gamma particle

Question 43

Has the same mass as an electron but the opposite charge

Answer 43

Positron

Question 44

Process in which the nucleus captures an inner-shell electron, thereby converting a proton to a neutron

Answer 44

Electron capture

Question 45

Loss in mass that occurs when protons an neutrons combine to form a nucleus. Loss in mass is converted into energy that is released during the nuclear reaction and is thus a direct measure of the binding energy holding the nucleus together

Answer 45

Mass defect

Question 46

Self-sustaining reaction whose product initiates further reaction

Answer 46

Chain reaction