Chemistry

chemistry flash cards

malleable

capable of being extended or shaped by beating with a hammer or by the pressure of rollers without breaking or cracking.

mass

the quantity of matter contained in an object or substance

chemistry

the study of matter and how it changes

density

the quality or state of being dense

solution

a homogenous mixture formed by mixing one solid, liquid, or gaseous substance with another

volume

the amount of space occupied by a three-dimensional object as measured in cubic units (such as quarts or liters) : cubic capacity

solvent

does the dissolving

subscipt

smaller number to the right that tells you how many atoms

atom

the smallest particle of an element that can exist either alone or in combination

particle

a relatively small or the smallest discrete portion or amount of something

boiling point

the temperature at which a liquid boils

insoluble

does not dissolve in particular solvent

Reactants

a substance that enters into and is altered in the course of a chemical reaction

matter

anything that takes up space and has mass

luster

a substance that enters into and is altered in the course of a chemical reaction

ductile

capable of being drawn out into wire or thread

combustion

an act or instance of burning

substance

the smallest particle of a substance that retains all the properties of the substance and is composed of one or more atoms

molecule

coefficient

bigger number to the left. Tells how may atoms

conductivity

the degree to which a specified material conducts electricity

Elements

any of the four substances air, water, fire, and earth formerly believed to compose the physical universe

chemical equation

a symbolic representation of a chemical reaction, showing the reactants, products, and the direction of the reaction using chemical formulas and symbols.

phycical change

alters the form, appearance, or state of a substance without changing its chemical composition

physical property

a measurable or observable characteristic of matter—such as color, mass, density, melting point, or conductivity—that can be determined without changing the substance’s chemical identity.

heterogenous

mixture thaat does not appear to be the same through out

Homogeneus

a mixture that appears to be the same through out

chemical formula

a symbolic notation showing which elements are present in a compound and how many atoms of each element it contains, such as H₂O for water or CO₂ for carbon dioxide.

chemical symbol

is a one‑ or two‑letter abbreviation used to represent a chemical element, such as H for hydrogen or O for oxygen.

chemical bonds

the attractive forces that hold atoms or ions together, mainly through electron sharing, electron transfer, or electrostatic attraction, forming molecules, crystals, and other structures.

nucleus

a membrane-bound organelle in eukaryotic cells that stores genetic material and regulates cellular activities.

alloy

a mixture of two or more elements—at least one of which is a metal—combined to improve properties such as strength, hardness, or corrosion resistance.

chemical change

is a process in which one or more substances are transformed into new substances with different chemical compositions and properties

mixture

a substance made by mixing other substances together

compound

a thing that is composed of two or more separate elements

pure substance

matter that contains only one type of element or one type of compound

solute

the minor component in a solution, dissolved in the solvent

solubility

the maximum amount of a solute that can dissolve in a given amount of solvent at a specified temperature, forming a saturated solution—for example, table salt dissolves up to about 36 g per 100 g of water at 25 °C.

transparent

allowing light to pass through so that objects behind can be distinctly seen

Melting point

1. the temperature at which a given solid will melt.

products

a product is any substance formed as the result of a chemical reaction