Phy Sci chapter six

Question 0

What are atoms and ions held together by

Answer 0

Chemical bonds

Question 1

Which one is a compound

• salt
• paint
• soup
• air

Answer 1

Salt

Question 2

Which model could be used to compare the sizes of atoms in a molecule

Answer 2

Space-filling

Question 3

There are strong bonds between the atoms in a piece of quartz. These binds give quartz a what

Answer 3

High melting point

Question 4

The attraction between molecules tends to be ______ than the attraction between ions

Answer 4

Weaker

Question 5

Which molecules are most strongly attracted to one another

Answer 5

Hydrogen molecules

Question 6

Sugar has a lower melting point than salt because sugar is made of what

Answer 6

Molecules

Question 7

A hydrogen bond between water molecules is what when compared with the bonds within an individual water molecule

Answer 7

It is weaker

Question 8

A compound with only two atoms would not have a what

Answer 8

Bond angle

Question 9

What model would show the bind angle

Answer 9

Ball-and-stick

Question 10

Why do atoms sometimes form bonds

Answer 10

To become more stable

Question 11

What kind of bonds hold together copper atoms

Answer 11

Metallic

Question 12

Sodium has one electron in its outer shell and chlorine has seven elevators in its outer shell
The atoms will form an _________ bond by _________ their electrons

Answer 12

Ionic

Transferring

Question 13

Oxygen atoms have six electrons in their outer shells

When two oxygen atoms bond, they will form a _______ bond by _______ their electrons

Answer 13

Covalent

Sharing

Question 14

Formed by atoms in metals packing elections close together

Answer 14

Metallic bond

Question 15

Positive and negative ions are formed

Answer 15

Ionic bond

Question 16

Usually occurs between nonmetals

Answer 16

Covalent bond

Question 17

Allows copper to bend and conduct electricity

Answer 17

Metallic bond

Question 18

Creates compounds with very high boiling points

Answer 18

Ionic bond

Question 19

Creates compounds with low boiling points

Answer 19

Covalent bond

Question 20

The attractive force that holds atoms or ions together

Answer 20

Chemical bond

Question 21

The arrangement of atoms in a substance

Answer 21

Chemical structure

Question 22

The average distance between the nuclei of two bonded atoms

Answer 22

Born length

Question 23

The angle formed by two bonds to the same atoms

Answer 23

Bond angle

Question 24

What determines the properties of a compound

Answer 24

The chemical structure

Question 25

Compounds with what kind of structures are strong solids

Answer 25

Network structures

Question 26

What are some compounds made of

Answer 26

Molecules

Question 27

Attractions between water molecules

Answer 27

Hydrogen bonds

Question 28

What are hydrogen bonds not as strong as

Answer 28

The bonds holding oxygen and hydrogen atoms together within a molecule

Question 29

Why do atoms form bonds

Answer 29

So that each atoms has a stable electron configuration

Question 30

What are the 2 basic kinds of chemical bonding

Answer 30

Ionic | Covalent

Question 31

How do ionic bonds form

Answer 31

From the attractions between oppositely charged ions

Question 32

The attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another

Answer 32

Ionic bonds

Question 33

The smallest ratio of ions in ionic compounds

Answer 33

Formula unit

Question 34

When can ionic compounds conduct electricity

Answer 34

When melted or dissolved in water

Question 35

What do atoms joined by covalent bonds share

Answer 35

Electrons

Question 36

A bond formed when atoms share one or more pairs of electrons

Answer 36

Covalent bond

Question 37

What kind of atoms do covalent bonds usually form between

Answer 37

Nonmetal

Question 38

Bonds in which electrons are shared equally

Answer 38

Nonpolar covalent bonds

Question 39

A bond in which there is an unequal sharing of electrons

Answer 39

Polar covalent bond

Question 40

What gives metals their distinctive properties

Answer 40

Metals are flexible and conduct electric current well because their atoms and electrons can move freely throughout a metal's packed structure

Question 41

A bond formed by the attraction between positively charged metal ions and the electrons around them

Answer 41

Metallic bond

Question 42

How are polyatomic ions similar to other ions

Answer 42

They act as a single unit in a compound

Question 43

An ion made of two or more atoms

Answer 43

Polyatomic ion

Question 44

What ending is used to name an ion with more oxygen atoms

Answer 44

-ate

Question 45

What ending is used to name an ion with fewer oxygen atoms

Answer 45

-ite

Question 46

How are ionic compounds named

Answer 46

The names of ionic compounds consisting of the names of the ions that make up the compounds

Question 47

What do names of cations include

Answer 47

The elements of which they are composed

Question 48

What are names of anions

Answer 48

Altered names of elements

Question 49

What must an ionic compound have a total charge of

Answer 49

Zero

Question 50

What some cation names show

Answer 50

Their charge

Question 51

What may form several cations - each with a different charge

Answer 51

Transition metals

Question 52

What does a compound's empirical formula indicate

Answer 52

The smallest whole-number ratio of atoms that are in a compound

Question 53

The composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio

Answer 53

Empirical formula

Question 54

A chemical formula that shows the number and kind of atoms in a molecule, but not the arrangement of atoms

Answer 54

Molecular formula

Question 55

What can be used to determine empirical formulas

Answer 55

Masses

Question 56

A covalently bonded compound that contains carbon excluding carbonates and oxides

Answer 56

Organic compound

Question 57

What do carbon atoms form

Answer 57

Four covalent bonds in organic compounds

Question 58

A compound made of only carbon and hydrogen atoms

Answer 58

Hydrocarbon

Question 59

Hydrocarbons that have only single covalent bonds

Answer 59

Alkanes

Question 60

What are examples of alkanes

Answer 60

Methane | Ethane

Question 61

Alkanes with the lowest molecular masses are what | What about highest molecular masses

Answer 61

Gases | Solids

Question 62

What is the number of hydrogen atoms always

Answer 62

Two more than twice the number of carbon atoms, except for cyclic alkenes

Question 63

Hydrocarbons that have double carbon bonds

Answer 63

Alkenes

Question 64

What is the simplest alkene

Answer 64

Ethene

Question 65

What do alcohols have

Answer 65

Hydroxyl, or -OH groups

Question 66

What two molecules behave similarly

Answer 66

Alcohol and water molecules

Question 67

A molecule that is a long chain made of smaller molecules

Answer 67

Polymer

Question 68

What do polymers have that repeat

Answer 68

Subunits

Question 69

The smaller molecule that makes up the polymer

Answer 69

Monomer

Question 70

What can be natural or artificial

Answer 70

Polymers

Question 71

What are some natural polymers

Answer 71

Rubber Starch Protein DNA

Question 72

what are some artificial polymers

Answer 72

Plastic | Synthetic fibers

Question 73

What determines a polymer's elasticity

Answer 73

Structure

Question 74

What is made of long chains

Answer 74

Polyethene

Question 75

What is flexible, but not elastic

Answer 75

Polyethene

Question 76

What are some polymer structures

Answer 76

Linear Branched Cross-linked

Question 77

What organic compounds are essential to life

Answer 77

Biochemicals, which are essential to life, include carbohydrates, proteins, and DNA