Basics
Basics Part 2
Conduction
Phases
Phase Changes
100

What is chemistry the study of?

Matter

100

When two or more atoms come together it is called...

A molecule!

100
What is kinetic energy?
The energy of movement
100

How do substances change phases?

By increasing kinetic energy

100

Define melting and provide an example

S->L

200

What is the definition of matter?

Matter is anything that takes up space and has mass.

200

Is water (H2O) an atom or molecule?

Molecule!

200

What is temperature?

The measure of kinetic energy

200

Describe the arrangement, shape, movement, and attraction of gas molecules

Arrangement: far apart

Shape: no defined shape

Movement: very fast

Attraction: weak

200

Define freezing and provide an example

L->S

300

What is the most basic building block of matter?

Atoms

300

What are the three phases of matter?

Solids, Liquids, and Gases

300
What has the most kinetic energy?

Filip late to class, a cheetah, or a slug?

300

Describe the arrangement, shape, movement, and attraction of liquid molecules

Arrangement: fairly close together, can slide past one another

Shape: shape of container

Movement: Medium speed, flows

Attraction: fairly attracted


300

Define evaporation and provide an example

L->G

400

Where could you look to find all the types of atoms that exist in the world?

Periodic Table

400

What was the name of the man who came up with the periodic table?

Dmitri Mendeleev

400

What is conduction?

The transfer of heat (which is the transfer of kinetic energy)

400

Describe the arrangement, shape, movement, and attraction of molecules in a solid

Arrangement: close together, can't move past one another

Shape: defined shape

Movement: vibration

Attraction: strong

400

Define condensation and provide an example

G->L

500

What are the two main properties of matter? Not the definition of matter, but properties/characteristics!

Matter of the same type is attracted to one another and moves

500

How is the periodic table arranged and what does that thing mean?

By atomic number (which is the number of protons)

500

Can you cool something down by transferring coolness to it?

No, coolness is the absence of heat. Something becomes cool when its kinetic energy leaves it and is transferred to something else

500

Using the 3 class demos (metal ball expanding, food dye in water, water on wax paper) explain how matter is attracted to one another and how matter moves around on the atomic level.

Metal ball: molecules moved as kinetic energy increased from heat which made the ball expand, metal atoms also did not separate

Food dye: molecules move around which is why the food dye dispersed/mixed in easily, food dye molecules are water molecules also did not separate

Water on wax paper: water droplets could not easily break apart from one another since water molecules are attracted to one another

500

Define sublimation and deposition

Sublimation= S->G

Deposition= G->S