Polymers
Real life examples of polymers
Plastics, rubbers, textiles, adhesives
What substance provided the polymer chains in the bouncy ball?
Glue!
Long hair should be...
Tied back!
Borax when dissolved becomes...
borate ions
The molar mass of oxygen is
16.00g/mol
Types of everyday materials that are polymers
Natural & Synthetic
What acts as the cross-linker?
Borax
What should you do instead of sniffing directly?
Wafting
Each borate ion can form bond with ___ polymer chains
two
2 or more substances chemically bonded are called...
Compounds
Polymer's are long chains made of repeating molecular units called...
monomers
if you had stiff, bouncier balls, you had an excess amount of...
Borax
How do you properly dispose of borax solution?
With plenty of water into sink
Glue and borax combine and borax acts as ____
cross linker
What states that mass cannot be created or destroyed during a chemical reaction; the total mass of the reactants will always equal the total mass of the products
Law of conservation of mass
Type of polymer contains chains that are linked together
Cross-linked polymers
If you had low borax your bouncy ball would be...
Soft, less bouncy, stretchy
What should you do once finished the lab?
Clean up your lab bench
Causes the ball to bounce back and squish
Elastomers
Examples of physical changes
Melting, boiling, crushing, dissolving, change in color
Types of plastic polymer make water bottles?
Polyethylene Terephthalate
When glue and borax combine, the new substance is called "E"....
Elastomer
What does PPE stand for?
Personal protective equiptment
Cross linking transforms a viscous liquid in to an ____
elastic solid
Are halogens reactive?
Extremely reactive!!