Bonding
What is 1
When you observe property changes but the substance STAYS the same
What is a physical change
What is a polymer
Number of dots for Chlorine
When a new substance forms
What is a chemical change
2 types of polymers
What is natural and synthetic
Each elements in this type of bond are both nonmetals
What is covalent bonding
These compounds are able to conduct electricity
What are ionic bonds
What is 1
If combustion occurs (burning of the substance)
What is a chemical change
A chemical change must occur for the substance to be broken down- cannot be be broken down with physically
What is a compound
What is an ionic bond?
These compounds have the weakest bonds
What are covalent compounds?
Number of dots for Phosphorus
What is 5
color and odor are observable for this type of change
What is physical OR chemical
Represented by chemical formulas
What are polymers and compounds
In covalent bonds, all atoms need to share to so each atom has 8 valence electrons. This element is the exception, needing only 2.
What is Hydrogen?
Property that both ionic and covalent bonds share
What is both are brittle (ionic are hard and brittle while covalent are soft and brittle)
Number of dots for Krypton
What is 8- but it does not bond because it is a Noble Gas and already stable
Ways to demonstrate energy changes in a chemical change
What is becoming cooler, warmer, releasing light, making a sound (pop, boom, etc.)
3 types of diagrams used to model compounds
What is ball & stick, space filling, and structural