Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Key Terms: U2
Vocabulary for Chemistry
| Term | Definition |
|---|---|
| Physical property | property of a compound that can change without involving a change in chemical composition; examples-melting point and boiling point |
| chemical property | any of a chemical's properties that became evident during a chemical reaction; examples-reactivity and flammability |
| physical change | any change not involving a change in the substance's chemical identity. Includes a change from one state to another without a change in chemical composition. |
| chemical change | any process determined by the atomic and molecular composition and structure of the substances involved |
| element | a substance composed of atoms having an identical number of protons in each nucleus. It cannot be reduced to simpler substances through normal chemical means. |
| pure substance | 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 |
| compound | a pure, macroscopically homogeneous substance consisting of atoms or ions of two or more different elements in definte proportions that cannot be seperated by physical means. |
| Mixtuure | a composition of two or more substances that are not chemically combined with each other and are capable of being seperated |
| solution | a homogeneous mixture of two or more substances, which may be solids, liquids, gases, or a commbination of these. |
| heterogeneous | consisting of dissimilar parts. these mixtures have distinguishable phases |
| homogeneous | uniform in structure or composition throughout. these mixtures have atoms and moleculres interspersed |
| alloy | a homogeneous mixture or solid solution of two or more metals, the atoms of on replacing or occupying interstitial positions between the atoms of the other. Example- Brass is a combination of zinc and copper |
| distillation | the evaporation and subsequent collection of a liquid by condensation as a means of purification |
| density | the mass per unit of columes of a substance. Commonly measured on grams per millilliter or grams per cubic centimeter. |
| Matter | anything that has mass and takes up space |
Created by:
ii_UnkownWaterz
Popular Chemistry sets