Matter
The two subdivisions of matter...
What are Substances and Mixtures?
A combo of two or more substances that are chemically combined.
What is a mixture?
Based on your senses.
What is an observation?
Convert 1.005 g to cg. How many sig. fig's are there in the original number?
What is 100.5 cg? What are 4?
Shiny, dull, red, bright, cold, hot, etc.
What are properties of matter?
The two types of mixtures
What is homogeneous and heterogeneous?
Substances that appear to be the same throughout.
What are homogeneous mixtures?
Difference between science and technology
What is technology is the application of science.
What is 0.003200 km? There are 2 sig fig's.
A mixture in which the particles of a substance are mixed throughout and are not large enough to settle.
What is a colloid?
The two divisions of substances
What are elements and compounds?
The use of paper or other materials to remove solid particles from a liquid mixture.
What is filtration?
The sample in an experiment in which the variables are kept at a base level.
What is the control?
Calculate the following and record your answer with the correct number of sig fig's.
32.00 x 0.23
What is 7.4?
The scattering of light by colloids
What is the Tyndall Effect?
Definition of matter
What is anything that has mass and takes up space (occupies a given volume)?
Separating substances based on the tendencies of the different substances to be absorbed.
What is chromatography?
These are the base units of the metric system.
What are gram, Liter, second, degrees Celsius, and meter?
Calculate the following and record correct number of sig fig's.
300.00678 + 10.22334 + 134.23
What is 444.46?
Name two suspensions
What are oil and vinegar dressing, and clay mixed with water?
Colloids and suspensions are...
What are heterogeneous mixtures?
Separating liquid mixtures by heating
What is distillation?
The study of how atoms, molecules, and chemicals interact with each other.
What is Chemistry?
Write the following in scientific notation.
0.00000045888
33333334444
What is 4.5888 x 10-7?
What is 3.3333334444 x 1010?
Explain why fog is a colloid?
Fog is made of water particles mixed with the air. Drivers have more difficulty seeing through fog with their lights on high beam because fog scatters the concentrated light. This scattering of light is an example of the Tyndall Effect.