Science quiz

Precipitate-solid that forms and settles out of a liquid mixture

Product-substance produced in a chemical reaction

Reactant- substance present at the start of a reaction

Compound-substance that contains two or more elements chemically combined in a fixed proportion

Chemical reaction-change in which one or more reactions change into products, the breaking of bonds in reactants and the formation of bonds in products

Chemical property-ability of a substance to undergo a specific chemical change

Group-vertical column of elements in the periodic table

Period-a horizontal role of elements in the periodic table

Law of conservation of mass-any chemical of physical process energy is neither created nor destroyed

Periodic table-arrangement of elements in which the elements are separated into groups based on a set of repeating properties

Chemical symbol one or two letter representation of an element

Chemical change- change that produce matter with different composition than the original matter

Element-simplest form of a matter that has a unique set of properties cannot be broken down into simpler substances by chemical means

Distillation-process used to separate components of a mixture, using difference in boiling points

Filtration-process that separates a solid from the liquid in a heterogeneous mixture

Phase-any part of a sample with uniform composition and properties

Solution-homogeneous mixture consist of solute dissolved in a solvent

Heterogeneous mixture-mixture that is not uniform en composition components are not evenly distributed through mixture

Mixture-physical land of two or more substances that are not chemically combined

Physical change-change during which some properties of a material change, but the composition of the material doesn’t

Vapor-describe describes the gaseous state of a substance that is generally a liquid or solid at room temp

Gas-form of matter that takes the shape and volume of it its container has no definite shape or volume

Liquid-a form of matter that flows has a fixed volume and a indefinite shape

Solid-a form of matter that is definite shape and volume

Physical property-equality or condition of a substance that can be observed or measured without changing the substance composition

Substance-matter that has a uniform and definite composition

Intensive property-property that depend depends on the shape of matter in a sample

Extensive property-property that depends on the amount of matter in a sample

Volume-measure of space occupied by a sample of a matter

Homogeneous mixture-a mixture that is uniforming composition components are evenly distributed and are not easily easilysomething?

Mass-measure of the amount of matter that an object contains