Lesson 5.2

Question 1

are ways to represent molecules to convey information about its
composition or structure

Answer 1

Chemical formulas

Question 2

are ways to represent molecules to convey information about its
composition or structure

Answer 2

Chemical formulas

Question 3

In writing molecular formulas, the number of each atom in a molecule is indicated

Question 4

gives the simplest whole-number ratio of each
element in a compound

Answer 4

empirical formula

Question 5

are compounds that
contain carbon bonds.

Answer 5

organic compounds,

Question 6

carbon bonds. Compounds that lack these are called

Answer 6

inorganic compounds

Question 7

is part of a family of organic
compounds

Answer 7

Hydrocarbons

Question 8

all bonds and atoms are shown

Answer 8

complete structural formula

Question 9

atoms that are connected to a specific carbon are
represented like molecular formulas, where more than one atom is represented by a
subscript attached to a specific carbon

Answer 9

condensed structural formula

Question 10

structure is
drawn with lines drawn at an angle where each corner represents a carbon

Answer 10

skeletal or line-angle formula

Question 11

The hydrogens
attached to each carbon will not be drawn. These are called _ _ that can be
deduced based on the fact that carbon forms four bonds with other atoms. If the bonds
shown in the line-angle formula are less than 4, then it is implied that the remaining bonds
are with hydrogen.

Answer 11

implicit hydrogens

Question 12

A 3D model is the best way to see how atoms are connected in a molecule. They show us
geometry and help us predict its properties and reactions. There are numerous ways in
which a molecular model is presented.

Question 13

In this type of model, balls represent atoms, while sticks represent
bonds between the atoms. The balls included in the kit are color-coded, and these colors
represent a particular element that can form a specific number of bonds. This model shows
the geometry of the molecule and helps us predict properties.

Answer 13

Ball-and-Stick Model

Question 14

In this model, bonds represented by sticks in the previous model are
cut short so that there is a better estimation of what the molecules look like if they were
visible.

Answer 14

Space-Filling Model

Question 15

a model wherein bond lengths are shortened for
better estimation of its length relative to the size of the atoms.

Answer 15

space-filling model

Question 16

a 3D model showing how atoms are connected in a
molecule

Answer 16

molecular mode