Types of Chemistry
Scientific Method
Describing Matter
Random!
Measurements
100
A chemist trying to figure out the chemical composition of the soda she is drinking
What is an Analytical Chemist
100
Name the components of the scientific method.
Observation, hypothesis, Collect Data, Analyze Data , Conclusion
100
Density, Boiling Point, Luster and Melting Point are all examples of:
Intensive Properties
100
Something that has a fixed composition is:
a pure substance
100
2.3x102 cm = _____ m
100 cm=1m
2.3 m
200
A chemist that would want to study the venom of a rattlesnake for the purpose of finding a resistance for a living thingtwould be a:
Organic Chemist
200
What are our five senses we use to make observations?
Taste, smell, touch, sight, hear
200
Ice melting, Water Freezing and Water Boiling are all examples of:
Physical Changes
200
An experimental measurement was taken of 10.4mL and the actual measurement was 9.7 mL. What is the percent error?
7.2%
200
62.8 L= ___deciliters
628 dl
300
A chemist that will research the effects of substances such as drugs, hormones, and nutrients on biological processes
Biochemist
300
A researcher is studying how the temperature of a solution affects the rate of solubility. Label the dependent variable and the independent variable
Dependent: Rate of solubility
Independent: Temperature of reaction
300
Gases, Liquids, Solids.
Put the phases above in order from the one with the closest particles to the one with the particles most spread apart. Then, draw a particle picture of each!
solid, liquid, gas
300
A student estimated a mass to be 325000 mg. However, the actual mass was 342 g. What is the percent error?
1000mg=1g
4.9%
300
Put 0.00002389 in scientific notation
2.389x10-5
400
The chemist that would study how heat changes the rate of the reaction would be:
Physical chemist
400
Draw a graph of the following data. Be sure to label everything!
Amount of water (mL): Plant height (in.)
10 mL 8 in.
15 mL 12in.
20mL 20in.
I'll come around!
400
Blood, Chicken broth and soda are all:
homogeneous mixtures
400
Explain how filtration works
I'll have to read everyones (:
400
9.24x108 meters/hours= _____km/minute
1km=1000 m
15400 km/min
500
Someone who is doing research to find a chemical composition for a vaccine for COVID 19 is doing:
Applied Chemistry
500
If your hypothesis is proven false, you must have done the experiment wrong. True or False
False!
500
What process can you use to separate a homogenous mixture?
Distillation
500
The thing that measures how close your data points are to one another is:
Precision
500
524 mL = _____ kL
must be in scientific notation.
1000 mL=1L
1000 L = 1kL
0.000524 or 5.24x10-4