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Get a Charge Out of Matter Jeopardy - PowerPoint PPT Presentation

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Get a Charge Out of Matter Jeopardy. Final Jeopardy. Category is: Water and Knives. Matter 100. All Matter Demonstrates Answer: Electrical Properties. Matter 200. Solids will dissolve in water if Answer: Their electrical properties are the same. Matter 300.

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Final Jeopardy

Category is:

Water and Knives

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Matter 100

  • All Matter Demonstrates

  • Answer: Electrical Properties

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Matter 200

  • Solids will dissolve in water if

  • Answer: Their electrical properties are the same.

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Matter 300

  • A substance used by athletes that will dissolve in water and conduct an electrical current.

  • Answer: electrolyte

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Matter 400

  • If water and oil do not mix

  • Answer: the molecules are different

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Matter 500

  • If a plastic knife is negatively charged with paper

  • Answer: it will attract positively charged objects.

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Matter 600

  • Substances with electrical properties SIMILAR to water

  • Answer: will dissolve in water

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Vocabulary 100

  • A charged particle.

  • Answer: Ion

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Vocabulary 200

  • A molecule that has an unequal distribution of charges (dipoles), resulting in one end that is more positive and the other that is more negative is called

  • Answer: Polar

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Vocabulary 300

  • The property that describes the ability of an atom to attract electrons

  • Answer: Electronegativity

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Vocabulary 400

  • Molecules that share electrons, but not equally are called

  • Answer: polar covalent

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Vocabulary 500

  • Molcules that share electrons with water equally and DO NOT mix with water are

  • Answer: nonpolar covalent

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Vocabulary 600

  • The part or section of the molecule that demonstrates both positive and negative charges (but can still be overall neutral) is a(n)

  • Answer: dipole

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Bonds 100

  • Substances that are soluble, hard, have high melting points, and are strong conductors are

  • Answer: Ionic compounds

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Bonds 200

  • A compound made by transferring electrons

  • Answer: ionic

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Bonds 300

  • A compound made by sharing electrons.

  • Answer: covalent

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Bonds 400

  • Which bond has the most drastic difference in electronegativity values?

  • Answer: ionic

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Bonds 500

  • Which bond is formed when atoms have similar electronegativity values?

  • Answer: covalent

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Bonds 600

  • Which bond is formed when two atoms from opposite sides of the periodic table join?

  • Answer: ionic

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Miss Alanious 100

  • Ionic compounds in a solid form a

  • Answer: Crystal Lattice.

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Miss Alanious 200

  • Solid ionic compounds do not conduct electricity because

  • Answer: They are in a fixed position, have a strong attraction for each other, and electricity is not free to flow.

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Miss Alanious 300

  • The rule for solubility is

  • Answer: Like dissolves like

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Miss Alanious 400

  • Why doesn’t PURE water conduct electricity well?

  • Answer: The total charge of water overall is neutral.

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Miss Alanious 500

  • What do high numbers on the conductivity meter show?

  • Answer: ions are present and electrons are allowed to move freely.

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Miss Alanious 600

  • Why did the stream of water bend when the NEGATIVELY charged knife was brought near it?

  • Answer: The positive part of the water molecule was attracted to the knife.

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Final Jeopardy

  • What happened to the arrangement of water molecules in the stream as they passed the negatively charged knife?

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  • The started out randomly and then aligned with the positive hydrogen towards the knife