S.O.M.
C.O.S.
Energy In or Out?
Chemical Reactions
Grab Bag
100

Slow vibrating atoms and molecules with fixed volume and shape.

What is a Solid?

100

A change of state from solid to liquid.  

What is Melting?

100

A chemical reaction resulting in the release of energy (heat).  

What is Exothermic?

100

A change in a substance that can be reversed.  

What is a Physical Change?  

100

True or False.   Sand and table sugar are two examples of liquids.  

What is False?  

200

Atoms and molecules are loose enough to slide past each other; volume is fixed but shape is not.  

What is a Liquid?

200

A change in state from liquid to gas.

What is Vaporization?

200

Freezing is an example of this type of chemical reaction.  

What is Exothermic?  

200

A change in a substance that creates a new substance.  

What is a Chemical Change?  

200

Chemical Formula for Glucose (plant sugar).

What is C6H12O?

300

Atoms and Molecules are fast moving and rarely touch each other; volume and shape can change depending on container.  

What is a Gas?

300

A change in state from gas to liquid.

What is Condensation?

300

Chemical reaction requiring the absorption of energy (heat).  

What in Endothermic?  

300

Three observable characteristics of Chemical Reactions. 

What are sounds, bubbles, heat, light, and/or smells.  

300

Chemical bond resulting from the SHARING of electrons.  

What is a Covalent Bond?  

400

Atoms and Molecules are super-charged and pure energy; no constant shape or volume.

What is a Plasma?

400

A change in state from a solid to a gas. 

What is Sublimation?

400

Sublimation is an example of this type of chemical reaction.  

What is Endothermic?  

400

In a chemical reaction, a(n) ______________ is any substance that initiates (starts) the reaction.  

What is a Catalyst?  

400

A liquid MIXTURE where the particles do not bond to liquid.  

What is a Suspension?  

500

This Hybrid state of matter consists of substances that have the characteristics of both liquids and solids.  

What is a Collide?

500

A change in state from a gas to a solid.  

What is Deposition?  

500

Liquids with lower amounts of energy will pour more slowly, meaning have a Higher or Lower _________.   

What is a Higher Viscosity?  

500

The term used to describe substances that will not interact with nor bond to water.  

What is Hydrophobic?  

500

___________ are made from connected __________ that are held together by ______________.  

What are Atoms, . . . Molecules . . . Bonds?