A characteristic that can be observed or measured without changing the sample's composition.
What is a Physical property.
100
The ability of a substance to combine with or change into one or more other substances.
What is Chemical property.
100
A mixture is ______________________.
What is a combination of 2 or more pure substances in which each pure substance maintains its individual chemical properties.
100
A pure substance that cannot be broken down into a simpler substance.
What is an Element.
200
A form of matter that has a uniform and unchanging composition.
What is a Pure substance.
200
A transition of matter from one state to another.
What is a Phase change.
200
A process that involves one or more substances changing into new substances.
What is Chemical change.
200
Solutions are also called ______________ mixtures.
What is Homogeneous.
200
Dmitri Mendeleev organized elements into this grid of periods and families.
What is the Periodic Table.
300
Describe the particles of a solid.
What is Densely packed.
300
Provide an example of a physical property.
What is Density, color, odor, hardness, melting/boiling points, etc.
300
Provide an example of a chemical change.
What is Decomposition, explosion, rusting, oxidizing, corroding, tarnishing, fermenting, etc.
300
Provide an example of a homogeneous and a heterogeneous mixture.
What is Salt water and Italian dressing, etc.
300
States that a compound is always composed of the same elements in the same proportion by mass.
What is the Law of Definite Proportions.
400
Define liquids in terms of shape.
What is Liquids have not definite shape, they take on the shape of their container.
400
Provide an example of a physical change.
What is Cutting, breaking, melting, freezing, etc.
400
This law demonstrates that mass is not created or destroyed in chemical reactions.
What is the Law of Conservation of Mass.
400
The result of a super-saturated solution.
What is Crystallization.
400
Provide an example of the Law of Multiple Proportions.
What is water and hydrogen peroxide.
500
Define gases in terms of shape and volume.
What is No definite shape or volume.
500
Name the phase change from a solid to a gas.
What is Sublimation.
500
A 28.0 g sample of nitrogen gas combines completely with 6.0 g of hydrogen gas to form ammonia. What is the mass of ammonia formed?
What is 34.0 g
500
The two "phases" associated with Chromatography.
What is Stationary and mobile.
500
When mercury oxide is heated, it decomposes into mercury and oxygen. If 28.4 g of mercury oxide decomposes, producting 2.0 g of oxygen, what is the percent by mass of mercury in mercury oxide?