Experience 1 Quiz
A chemical formula presents information on the number and type of atoms that make up a compound or element, such as
gas.
Put the gases in order of increasing number of atoms that make up its molecule (smallest to largest)?

C2 H 4

S O2

C H4

C H2 O

C l2
Match the following terms with the correct definition.
energy
kinetic energy
potential energy
thermal energy
chemical energy
 matter that is the total kinetic energy of all of the particles that make up the matter
 stored energy in matter due to its position relative to other matter
 potential energy that is stored in the bonds that hold atoms together
 the capacity to move or change matter
 the energy matter has because of its motion
For a given element, in which state of matter would you expect it to have the greatest amount of kinetic energy?
solid
liquid
gas
For a given element, in which state of matter would you expect it to have the greatest amount of potential energy?
solid
liquid
gas
A chemist is conducting an experiment on a system. At the beginning of the experiment, the chemist wants to determine
the temperature of the system.
The system has a definite volume but no definite shape. Which of the following is most likely also true for the system?
The molecules in the system have less kinetic energy than a solid.
The molecules in the system have more kinetic energy than a solid.
The molecules are held together by stronger attractive forces than a solid.
Heat flow into the system would eventually cause it to have a definite shape.
A teacher has given a group assignment to classify certain things as matter or energy. Most of the students in the
group have decided on the following classification:
Matter: atoms, sugar, water, air
Energy: heat, potential, kinetic, sound
However, there is one student who is arguing that all of the things listed in both categories can be classified as energy, an
so that must mean that they can all be classified as matter, too.
Which of the following provides the best scientific explanation as to why the things classified as energy are not also
classified as matter?
The things classified as matter are only used to generate energy.
Energy makes matter move, and the things classified as energy only make matter move.
You cannot hold the things classified as energy, so that must mean they cannot be classified as matter.
All matter has mass and occupies space, and the things classified as energy do not have mass and do not take
up space
Match the following terms from Experience 1. You may use your notes.
Matter
Element
Atom
Chemical symbol
Molecule
System
Surroundings
 smallest representative unit of an element
 one or two letters that are used to represemt an element
 simplest form of matter that has a characteristic set of properties
 two or more elements combined to form a neutral particle
 everything else around the system
 anything that has mass and takes up space
 portion of the universe that a scientist identifies for study
Identify the three states of matter in the diagram (solid, liquid, gas)
1
2
3
solid
liquid
gas