Chemistry

Question 1

anything that occupies space and has
mass.

Answer 1

matter

Question 2

3 Levels in Understanding Chemistry

Answer 2

1. The Macroscopic Perspective
2. The Microscopic/Particulate Perspective:
3. Symbolic Representation

Question 3

states of matter

Answer 3

solid, liquid, gas

Question 4

properties of matter

Answer 4

chemical and physical property

Question 5

the property that can be determined without changing the identity of the substance

Answer 5

physical property

Question 6

the property that can be determined by changing the identity of the substance

Answer 6

chemical property

Question 7

list of chemical properties

Answer 7

1. reactivity
2. flammability
3. toxicity
4. ability to oxidize
5. heat of combustion

Question 8

physical property that depends on the amount of substance

Answer 8

extensive property

Question 9

physical property that does not depend on the amount of substance

Answer 9

intensive property

Question 10

list of extensive properties

Answer 10

ass, volume, weight

Question 11

list of intensive properties

Answer 11

density, color, odor,luster malleability,conductivity, hardness, ductility, boiling point, melting point

Question 12

Fundamental Concepts of the Atom

Answer 12

nucleus, protons, neutrons, electrons

Question 13

atom with no charge

Answer 13

neutron

Question 14

smallest unit of a compound

Answer 14

molecule

Question 15

contains atoms of different elementschemically combined in a fixed ratio

Answer 15

compound

Question 16

Using chemical formulas and structures

Answer 16

symbolic representation

Question 17

atomic number is equal to

Answer 17

protons and electrons

Question 18

formula to determine the atomic mass

Answer 18

protons + neutrons

Question 18

formula to determine the atomic mass

Answer 18

protons + neutrons

Question 19

same atomic number (protons)
- different atomic mass (neutrons)

Answer 19

isotopes

Question 20

happens when atoms lose or gain
electrons

Answer 20

ions

Question 21

lose of electrons

Answer 21

cations (+)

Question 22

gain of electrons

Answer 22

anion (-)

Question 23

defined as 1/12 of
the mass of 1 carbon atom.

Answer 23

atomic mass unit

Question 24

1 amu is equal to

Answer 24

1.661 × 10-24 g

Question 25

shorthand way to use chemical symbols and numbers to represent substance

Answer 25

chemical formula

Question 26

tells how many atoms in a molecule

Answer 26

subscript

Question 27

tells the ratio of atoms in a molecule

Answer 27

empirical formula

Question 28

tells exactly how many each atom in a molecule

Answer 28

molecular formula

Question 29

Chemical Formulas

Answer 29

empirical formula, molecular formula and structural

Question 30

Three basic types of bonds

Answer 30

ionic, covalent, metallic

Question 31

Electrostatic attraction
between ions

Answer 31

ionic

Question 32

Sharing of electrons

Answer 32

covalent

Question 33

Attraction between
metal cations
surrounded by a sea of
electrons

Answer 33

metallic

Question 34

transfer of electrons produces

Answer 34

a pair of oppositely charge ions

Question 35

Provides a simple visual means to organize elements in
terms of their chemical and physical properties.

Answer 35

periodic table

Question 36

a massive, positively charged nucleus surrounded by
lighter, fast-moving electrons.

Answer 36

atom

Question 37

If the numbers of protons and electrons are not the same, the result
is a charged particle, which is called

Answer 37

ion

Question 38

can all be understood in terms of the interactions between
negative and positive charges.

Answer 38

chemical bonding

Question 39

elements that are found toward the left and bottom of the table

Answer 39

metals

Question 40

elements that are found toward the upper rightl

Answer 40

non-metals

Question 41

elements that are found in between

Answer 41

metalloids