[PDF] [PDF] Elements Compounds and Mixtures





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HW # 1: Solution Name ROW ____ PD ____ HW # 1: Solution Name ROW ____ PD ____

Feb 28 2017 A) a compound. B) an element. C) a mixture. D) a substance. 7. Bronze contains 90 to 95 percent copper and 5 to ...



Heterogeneous Mixture - Homogeneous Mixture Worksheet-Answer

Describe the following as an element a compound



2020-09-14 16:50

Sep 14 2020 Classify each of the following as an element



We use materials every single day – our cotton sheets the springs We use materials every single day – our cotton sheets the springs

All the properties of elements compounds and mixtures can be classified into two different types: chemical properties and physical properties. Physical 



EXAMPLE EXERCISE 4.1 Change of Physical State EXAMPLE EXERCISE 4.1 Change of Physical State

(b) Copper oxide is a compound of the elements copper and oxygen. (c) Malachite ore is a heterogeneous mixture of copper and other substances. (d) Bronze alloy 



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If the material is a pure substance further classify it as either an element or compound in the right column. or a heterogeneous mixture. 1. Sand.



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Classify each diagram as: pure substance - element pure substance - compound



CLASSIFICATION OF MATTER WORKSHEET HOMOGENEOUS VS

Element. Compound Mixture lead metal table salt. (NaCl). Kool-Aid drink vegetable soup oxygen gas distilled water. Concrete pure gold brass metal flat 7-Up soda.



Elements Compounds & Mixtures Worksheet

Elements: •. A pure substance containing only one kind of atom. An element is always uniform all the way through (homogeneous). An element cannot nuclear 



Chemistry: Classifying Matter Name______________________

If the material is a pure substance further classify it as either an element or compound in the right column. heterogeneous mixture? Give an example of each ...



EXAMPLE EXERCISE 4.1 Change of Physical State

(b) Copper oxide is a compound of the elements copper and oxygen. (c) Malachite ore is a heterogeneous mixture of copper and other substances. (d) Bronze 



Elements Compounds & Mixtures Worksheet

Elements: • A pure substance containing only one kind of atom. An element is always uniform all the way through (homogeneous) 



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matter including classification as elements compounds and mixtures



Chemistry: Classifying Matter Name______________________

substance or a mixture. If the material is a pure substance further classify it as either an element or compound in the right column.



CLASSIFICATION OF MATTER WORKSHEET HOMOGENEOUS VS

PURE SUBSTANCES VS. MIXTURES. Classify the following as pure substances (element or compound) or mixtures. 1. sodium Pure substance (E). 11 



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Brass Alloy (Cu + Zn). 10. Oil-Vinegar Elements Compounds Homogeneous Heterogeneme ... Elements. MIXTURES. Heterog. Mix. Homos. Mix. Element. Compound-.





Tiered Activity: Elements Compounds

http://www.troup.org/userfiles/929/My%20Files/Instructional%20Strategies/tiered_elem_compound_mixtures.pdf?id=14740



Mixtures Worksheet Answer Key

If the material is a pure substance identify it as an element or a compound. Material. Mixture. Pure Substance. Homogeneous or Heterogeneous.



KEY - X Unit 3 Review Packet.pdf

A mixture (is/is not)) a chemical combining of substances. 2. In a compound the (atoms/molecules) are (chemically/physically) combined so that the elements 



Is bronze a mixture or compound? How do you learn the difference?

Bronze is a mixture of tin and copper They are heated to the melt point of the higher melting metal I believe and then the other is added



Is Bronze an Element Compound or Mixture? [ANSWERED]

Bronze is a mixture since it's made of two different elements (Copper and Tin) that combine without forming chemical bond Thus bronze cannot be considered a 



[PDF] Elements Compounds and Mixtures

An element contains just one type of atom A compound contains two or more different atoms joined together A mixture contains two or more different



[PDF] Elements Compounds and Mixtures

An element contains just one type of atom A compound contains two or more different atoms joined together A mixture contains two or more different



[PDF] MIXTURES ELEMENTS AND COMPOUNDS - Junta de Andalucia

Steel is a homogeneous mixture however it is made from iron and carbon A pure substance is different from a homo- geneous mixture because a pure substance has 



[PDF] ELEMENTS COMPOUNDS & MIXTURES

A compound is a pure substance that consists of atoms of two or more elements joined together Compounds are formed when atoms of different elements react 



[PDF] Elements Compounds & Mixtures Worksheet

Elements Compounds Mixtures Worksheet Part 1: Read the following information on elements compounds and mixtures Fill in the blanks where necessary





[PDF] Elements Compounds Mixtures

1 fév 2016 · a mixture containing a metallic element and a non-metallic element • Common alloys include ? Bronze – copper (88 ) and tin (12 )



  • Is a bronze an element compound or mixture?

    Bronze is a mixture of two elements, copper and tin.

  • Is bronze a element or not?

    Bronze is a metal alloy that primarily contains copper and 12% tin. Other elements—such as aluminum, arsenic, manganese, phosphorus, and silicon—are also added to yield different properties. These mixtures form some of the common bronze alloys, including: Leaded bronze.

  • Is bronze a mixture and not compound?

    Brass and bronze are mixtures.
  • Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals, such as phosphorus, or metalloids such as arsenic or silicon.
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Elements, Compounds, and

Mixtures

Pure Substances

yA sample of matter that has definite chemical and physical properties.

Elements

ypure substance that cannot be separated into simpler substance by physical or chemical means.

An atom consists of a

y

Nucleus

protons and neutrons y electrons in space around the nucleus.

The Atom

Nucleus

Electron cloud

The building blocks of

Matter

Consists of Protons (+),

Electrons (-),

and Neutrons (N).

Smallest unit of an

elementthat has all of he same properties of that element.

Images are from http://www.chem4kids.com

Animated images and notes from http://www.chem.purdue.edu/gchelp/atoms/elements.html

Atoms of two or more differentelements

joined together by chemical bonds.

In the animation above, water (H20) is a

compound made of Hydrogen and

Oxygen.

The red compound is

composed of nickel (Ni) (silver)

‡carbon (C) (black)

hydrogen (H) (white)

‡ R[\JHQ 2 UHG

nitrogen (N) (blue)

CHEMICAL COMPOUNDS

composed of atoms and so can be decomposed(broken down) to those atoms.

Compounds

yMade of elements in a specific ratio that is always the same yHave their own physical and chemical properties. yCan only be separated by chemical means, not physically ySmallest particle is a molecule

A moleculeconsists of two or more atoms of

the sameelement, or differentelements, that are chemically bound together.

In the animation above, two nitrogen atoms

(N + N = N2) make one Nitrogen molecule .

Chemical Bonds

y

Molecules

are held together by bonds y

Ionic bonds

y

Covalent bonds

IONS y IONS are atoms or groups of atoms with a positive or negative charge. y

To tell the difference between an atom

and an ion, look to see if there is a charge in the superscript! Examples: Na Ca +2 I O 2

Na Ca I O

Forming Positive & Negative

Ions

A Positive ion

forms when an atom loses one or more electrons.

An Negative ion

forms when an atom gains one or more electrons

Mg --> Mg2+(2 e-lost)F + e---> F-

IONIC BONDS

y metals (Mg) lose electrons positive ion y nonmetals (F) gain electrons negative ion y

OPPOSITES ATTRACT EACH OTHER!

y positive ion

IS ATTRACTED TO

negative ion

Charges on Common Ions

-1-2-3+1 +2

By losing or gaining e

, atom has same number of e Cl

Covalent Bonds

Form when two or more

atoms SHARE electrons

Mixtures

yA combination of twoor morepure substances that are notchemically combined. ysubstances held together by physical forces, not chemical yNo chemical change takes place yEach item retainsits properties in the mixture yThey can be separated physically

Chem4kids.com

Solutions are groups of molecules that are

mixed up in a completely even distribution.

Uniform ( the same) Distribution.

Example: Sugar dissolved in Water

Images are from http://www.chem4kids.com

The substance to be dissolved.

The one doing the dissolving.

Images are from http://www.chem4kids.com

Particle sizes are in between the size of particles found in solutions and suspensions . Can be mixed and remain evenly distributed without settling out.

The substances are not uniformly mixed.

Example: Sand in a glass of water.

Images are from http://www.chem4kids.com

Are heterogeneousmixtures consisting of parts

that are visible to the naked eye.

Example: the ingredients in salad dressing

Substances will settleover time.

Mixtures vs. Compounds

Can you identify the following?

You will be shown a series of photos. Tell if each photo represents an item composed of an element, compound, or mixture.

Review:

yAnelementcontains just one type of atom. yAcompoundcontains two or more different atoms joined together. yAmixturecontains two or more different substances that are only physically joined together, not chemically. yA mixture can contain both elements and compounds.

Element, Compound, or Mixture?

Copper

Element, Compound, or Mixture?

Copper

Element, Compound, or Mixture?

Jelly Beans

Element, Compound, or Mixture?

Jelly Beans

Element, Compound, or Mixture?

Table Sugar

Element, Compound, or Mixture?

Table Sugar

Element, Compound, or Mixture?

Diamond

Element, Compound, or Mixture?

Diamond

Element, Compound, or Mixture?

Tea

Element, Compound, or Mixture?

Tea

Element, Compound, or Mixture?

Salt

Element, Compound, or Mixture?

Salt

Element, Compound, or Mixture?

Neon Gas

Element, Compound, or Mixture?

Neon Gas

Element, Compound, or Mixture?

Salad

Element, Compound, or Mixture?

Salad

Element, Compound, or Mixture?

Pure Water

Element, Compound, or Mixture?

Pure Water

Element, Compound, or Mixture?

Aluminum

Element, Compound, or Mixture?

Aluminum

Element, Compound, or Mixture?

Lemonade

Element, Compound, or Mixture?

Lemonade

Element, Compound, or Mixture?

Silver

Element, Compound, or Mixture?

Silver

Element, Compound, or Mixture?

Sand

Element, Compound, or Mixture?

Sand Notes yDetailed notes are located at: mixtures-notes-isn.pdf yFlow Chart: isn.pdfquotesdbs_dbs4.pdfusesText_8
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