Chemistry of Materials

Which property (ies) would be the most useful in identifying Polyamide? Explain.

• Resistance to softening at high temperatures

• Resistance to strong acids or bases

• Density relative to water

• Resistance to solvents such as acetone

Tags

NGSS.MS-PS1-2

What happens as we add/remove energy during section B?

• The energy goes into making or breaking bonds and results in a phase change.

• The energy goes into raising/lowering the temperature of the substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens as we add/remove energy during section C?

• The energy goes into making or breaking bonds and results in a phase change.

• The energy goes into raising/lowering the temperature of the substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the smallest unit of an element that cannot be broken down?

• molecule

• element

• atom

• compound

Tags

NGSS.MS-PS1-5

What do we call a substance consisting of a single atom?

• ultra atom

• element

• compound

• molecule

What's a valence electron?

• electrons in the second energy level

• electrons in the outermost energy level

• the atomic number

• electrons in the first level

Tags

NGSS.MS-PS1-1

What do we call the thing we create when we connect 2 or more atoms?

• poly-atom

• element

• molecule

• monomer

Tags

NGSS.MS-PS1-1

Do particles in a liquid move faster, slower or the same speed when heat is added?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The particles in a __________ stick close together but move more freely around their container.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The particles in a _______ bounce off each other and move around a lot within their container.

• Solid

• Liquid

• Gas