1 of 30

Slide Notes

DownloadGo Live

Chem. Vocab. Chap. 3

Published on Nov 21, 2015

No Description

PRESENTATION OUTLINE

CHEMISTRY VOCABULARY - CHAPTER 3

BY: EMILY CLAY - 8TH PERIOD
Photo by *nacnud*

Chemical change-any change that results in the formation of new chemical substances.

Photo by kevin dooley

Chemical property- any of a material's properties that becomes evident during a chemical reaction.

Photo by kevin dooley

Chromatography- the separation of a mixture by passing it in solution or suspension or as a vapor (as in gas chromatography) through a medium in which the components move at different rates.

Photo by jenny downing

Compound- a substance formed when two or more chemical elements are chemically bonded together.

Crystallization- a chemical solid–liquid separation technique, in which mass transfer of a solute from the liquid solution to a pure solid crystalline phase occurs.

Photo by subarcticmike

Distillation- The separation of a liquid mixture into its components on the basis of differences in boiling points.

Photo by willandbeyond

Element- A substance that cannot be broken down into simpler substances

Photo by beardclouds

Extensive properties- a property that changes when the size of the sample changes.

Photo by KOMUnews

Filtration- The act or process of filtering, especially the process of passing a liquid or gas, such as air, through a filter in order to remove solid particles.

Photo by ecstaticist

Gas- matter, composed of molecules in constant random motion.

Photo by kevin dooley

Heterogeneous mixture- a mixture having a non-uniform composition.

Photo by EMSL

Homogeneous mixture- A mixture which has uniform composition and properties throughout.

Photo by ratexla

Intensive properties- a system that does not depend on the system size or the amount of material in the system.

Photo by blmiers2

Law of conservation of mass- states that for any system closed to all transfers of matter and energy (both of which have mass), the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed.

Photo by BSH Shooter

Law of definite properties- law stating that every pure substance always contains the same elements combined in the same proportions by weight

Photo by jasoneppink

Law of multiple proportions- when two elements combine in more than one proportion to form two or more compounds the weights of one element that combine with a given weight of the other element are in the ratios of small whole numbers.

Photo by bolumena

Liquid- form of matter between a gas and a solid that has a definite volume, but no definite shape

Mixture- two or more substances which have been combined such that each substance retains its own chemical identity.

Photo by Yashna M

Percent by mass- 100% times the actual yield divided by theoretical yield .

Photo by Jon Gosier

Periodic table- all known elements grouped an organized based on atoms and similarities

Photo by FontShop

Physical changes- changes affecting the form of a chemical substance, but not its chemical composition.

Photo by kevin dooley

Physical property- heat of combustion, reactivity with water, PH, and electromotive force. The more properties we can identify for a substance, the better we know the nature of that substance.

Photo by RichTatum

Product- The compounds that are formed when a reaction goes to completion.

Photo by Knight725

Reactant- Substances initially present in a chemical reaction that are consumed during the reaction to make products.

Photo by jntolva

Solid- firm and stable in shape; not liquid or fluid.

Photo by i k o

Solution- a homogeneous mixture composed of only one phase.

Photo by RLHyde

States of matter- One of the four principal conditions in which matter existssolid, liquid, gas, and plasma.

Photo by Pulpolux !!!

Substance- is matter which has a specific composition and specific properties

Photo by Horia Varlan

Vapor- a substance diffused or suspended in the air, especially one normally liquid or solid.

Photo by breatheoutnow