A property that does not depend on the amount of matter present.
100
How is an alcohol represented?
-OH
100
Name two substances where fluoride is commonly found?
Water and Toothpaste
100
What is an abrasive?
Particles that do not break apart and help remove plaque.
Baking Soda is an example
100
What are the units for mass and what tool do you use to find mass?
Grams and Triple Beam Balance.
200
Volume is an example of a
1) chemical change
2) physical change
3) intensive property
4) extensive property
An extensive property
200
What is a benzene?
A ring of six carbons with six hydrogen bonded together
200
Where does fluoride come from inmost toothpastes?
A salt called sodium fluoride
200
What role does a surfactant play in toothpaste?
It helps spread out toothpaste to ensure equal cleaning potential
200
If the mass is 150 grams and the volume is 25 ml. What is the density of the object?
6 g/ml
300
Which statement describes a chemical property?
A)Its crystals are a metallic gray.
B)It dissolves in alcohol.
C)It is round in shape.
D)It reacts with hydrogen to form a gas.
It reacts with hydrogen to form a gas.
300
What do alcohols effect?
They effect physical and chemical properties.
300
What is an anion?
A negatively charged ion
300
What active role does titatnium dioxide play in toothpaste?
It does not play any active role. It is entirely cosmetic and makes toothpaste look white.
300
What is an active ingredient?
An active ingredient is an ingredient that directly plays a role in the drug working and being effective.
400
Which of the following is a physical change?
A) Cooking a cake
B) Frying an egg
C) Folding a piece of paper
D) Fireworks
400
What does an ester do? Give one example of something with an ester?
An ester causes something to have an odor/smell
Wintergreen, Oranges, etc
400
Explain what dental fluorisis is? What are the signs of dental fluorsis?
Dental fluorsis is the weakening of teeth which leads to brownish spots to develop.
400
Triclosan is found in toothpaste and acne medication. Why can't toothpaste be used to effectively remove acne?
While triclosan does kill bacteria. toothpaste lacks the necessary ingredients in addition to prevent your skin from drying out.
400
Methyl Salicylate, Thymol and Hydrogen Peroxide are all examples of what?
Antiseptics: Something that disinfects living tissue.
500
What physical property of copper always stays the same?
A) Volume
B) Length
C) Density
D) Mass
Density
500
Look at the board. Name all groups that you see in the following drawing
Alcohol, Ester, Phenol.
500
Explain why fluoride can save an individual money?
Less trips to the dentist since your teeth develop fewer cavities.
500
What type of flow does toothpaste have that prevents the colors from mixing when in the bottle?
A) Laminar Flow
B) Vertical Flow
C) Turbulent Flow
D) Horizontal Flow
Laminar Flow
500
Explain how the listerine company convinced people to start using listerine everyday. What was the disease they convinced everyone they had?
Halitosis. If you have halitosis no one will like you :(