Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
What are the three states of matter?
|
1. Solid
2. Liquid 3. Gas |
|
How do we distinguish the three states of matter from one another?
|
By the way it fills a container
|
|
Are there any other states of matter besides solid, liquid or gas?
|
No
|
|
Define a solid
|
It has its own definite shape and volume.
|
|
Describe how the molecules are arranged in a solid.
|
They are smoshed together in a compact form.
|
|
Define a liquid
|
It takes the shape of it's container and has a constant volume.
|
|
Describe how the molecules are arranged in a liquid.
|
They are not held in place as compact as a solid.
|
|
Define a gas.
|
Takes the shape of the container and also fills the volume of the container.
|
|
Describe how the molecules are arranged in a gas.
|
Very far apart.
|
|
How does vapor differ from a gas?
|
Vapor is the gaseous state of a substance that is a solid or liquid at room temperature.
|
|
Define a physical property and give an example
|
A characteristic that can be observed or measured without changing the samples composition.
Density is an example of a physical property |
|
How do intensive and extensive properties differ from one other?
|
An extensive property is dependent on the amount of substance present.
An intensive property is independent of the amount of the substance present. |
|
Define chemical property and give an example.
|
The ability of a substance to combine with or change into one or more other substances.
An example is iron forming into rust. |
|
In which state(s) of matter are the molecules most compressed?
|
Solid
|
|
In which state(s) of matter do the molecules fill the entire volume of a container?
|
Gas
|
|
In which state(s) does matter take the shape of a container?
|
Gas, Liquid
|
|
Compare the distance between the molecules of a gas in a very small container with the distance between the molecules of the same gas in a very large container.
|
The distance between the molecules in the very large container are farther apart because with a gas the molecules fill the entire volume of a container so the larger the container the farther the distance of between the molecules.
|
|
What happens to the volume of a liquid when it is poured from a small container to a larger container?
|
The volume does not change.
|
|
Name the two broad classes of matter
|
Physical and Chemical
|
|
What is the difference between a mixture and a pure substance?
|
A mixture is a physical blend of two or more pure substances in any proportion in which each substance retains its individual properties; can be separated by physical means while a pure substance is a sample of matter, either an element or a compound, that consists of only one component with definite physical and chemical properties and a definite composition.
|
|
What is the difference between a compound and an element?
|
A element is a pure substance that CANNOT be broken down into simpler substances by physical or chemical means while a compound is a chemical compound of two or more elements and CAN be broken down into simpler substances by chemical means and has properties different from those of its component elements.
|
|
Define a heterogeneous mixture.
|
A mixture that does NOT have a uniform composition and in which the individual substance remain distinct.
|
|
Define a homogeneous mixture.
|
A mixture that has a uniform composition throughout and always has a single phase; also called a solution.
|
|
What is a chemical property?
|
The ability or inability of a substance to combine with or change into one or more new substance.
|
|
What is a physical property?
|
A characteristic of matter that can be observed or measured without changing the sample's composition
|
|
Name some examples of physical properties
|
density, color, taste, hardness, melting point.
|
|
Name some examples of chemical properties.
|
combustibility, failure to react, tendency to corrode, flammability
|
|
Name the four indicators of a chemical change
|
1. Change in color
2. Change in temperature 3. Change in odor 4. Change in state of matter (production of gas or solid) |