Mrs. Key 8th Grade Science

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Jeopardy

• Mrs. Key - 8th Grade Science
• Periodic Table Equations - Reactions
• Template by Elaine Fitzgerald

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Periodic Table
Compounds
Equations
Reactions
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What is a crystal lattice?
The pattern formed by all of the crystals in a
solid.

• 1.100

4
What are metals?
These elements conduct heat and electricity and
are on the left side of the Periodic Table.

• 2.100

5
What are reactants?
The substances in a chemical reaction that exist
before the reaction takes place.

• 3.100

6
What is synthesis?
A reaction in which two simple substances
combine to form a new more complex substance.

• 4.100

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What is an polyatomic ion?
A group of two or more atoms sharing a charge
and acting as one unit.

• 1.200

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What are non-metals?
These elements are insulators and are on the
right side of the Periodic Table.

• 2.200

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What are products?
The substances in a chemical reaction that exist
after the reaction has finished.

• 3.200

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What is decomposition?
A reaction in which a complex substance is broken
into two or more simpler substances.

• 4.200

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What is an ionic compound?
A compound in which the bonds are formed due to
the transfer of electrons.

• 1.300

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What are ions?
Atoms with a charge.

• 2.300

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What is a catalyst?
A substance that increases the speed of a
chemical reaction but is not changed by
the reaction.

• 3.300

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What is single replacement?
A reaction in which an element moves into a
compound and substitutes for one of the elements
in the compound.

• 4.300

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What is a covalent compound?
A compound in which the bonds are formed by
the sharing of electrons.

• 1.400

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What are metalloids?
Elements that have some properties of metals
and some of non-metals.

• 2.400

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What is a coefficient?
The number in front of a formula that indicates
the quantity of that substance.

• 3.400

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What is double replacement?
A chemical reaction where the cation of one
compound exchanges with the cation of another
substance.

• 4.400

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What is a cation?
Ions with a positive charge.

• 1.500

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What is the oxidation number?
This number represents the charge of the ion.

• 2.500

21
What is balancing an equation?
Using coefficients to make sure the number of
each type of atom in the reactants is equal to
the number in the product .

• 3.500

22
What is a precipitate?
A solid that comes out of solution when two
substances are combined.

• 4.500