Elements,compoundsandmixtures WHATISANELEMENT?Anelementis…•materialmadeofjustonetypeofatom •Asubstancethatcannotbeseparatedorbrokendownintosimplersubstancesbychemicalmeans Whatarethe3mostabundantelementsthatmakeuptheearth?•Oxygen•Iron•silicon answer Compositionoftheearth Whatare3mostcommonelementsthat...
Elements, compounds and mixtures WHAT IS AN ELEMENT? An element is… • material made of just one type of atom • A substance that can not be separated or broken down into simpler substances by chemical means What are the 3 most abundant elements that make up the earth? answer • ...
ELEMENTS, COMPOUNDS AND MIXTURES TEST Multiple Choice Identify the choice that best completes the statement or answers the question. 1) Boiling point, melting point, and density are some of an element’s A) nonreactive properties. B) physical properties. C) chemical properties. D) pure propertie...
Elements, Compounds, and MixturesKellermanElizabeth R|BardenCindy
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) 化合物主要分为有机化合物和无机化合物 有机化合物含有碳氢化合物(或叫做烃 hydrocarbon)，如甲烷(methane CH4) 无机化合物不含碳氢化合物，如硫酸铅(lead (II) sulphate PbSO4) 混合物(mixtures)是由两至多种纯物质（元素或化合物）没有...
Elements and Compounds ? Elements – All particles are alike – The smallest particle of an element that is still recognizable is called an atom – They can’t be broken down anymore without completely destroying it (nuclear explosion) – They are found on the periodic table ? Currently there...
Mixtures, Elements, and Compounds 混合物,元素,与化合物-文档资料 ElementsandCompounds •Elements –Allparticlesarealike–Thesmallestparticleofanelementthatisstillrecognizableiscalledanatom–Theycan’tbebrokendownanymorewithoutcompletelydestroyingit(nuclearexplosion)–Theyarefoundontheperiodictable•Currentlythereare...
elements-compounds-mixtures ClassifyingMatter:Elements,Compounds,andMixtures ByLizLaRosa5thGradeSciencewww.middleschoolscience.com2009 PureSubstances Asampleofmatterthathasdefinitechemicalandphysical properties.Elements puresubstancethatcannotbeseparatedintosimpler substancebyphysicalorchemicalmeans.Compounds Pure...
Elements, Compounds, Mixtures Warm Up Activity This picture show the atoms that are present in the air. Which ones are elements? How can you tell? What do we call these things? An Atom 3 Atoms What do we call these things? 6 Atoms which happen to be of 3 different elements ...
Mixtures, Elements, Compounds Scientists like to classify things. One way that scientists classify matter is by its composition. Ultimately, all matter can be classified as mixtures, elements, and compounds. Why isn’t it a good idea to classify matter by its phases? Because one kind of substa...