Post on 27-Dec-2015
transcript
Welcome to chemical reactions Jeopardy!
I’m your happenin’ host Sal the Scientist! Today we will be learning about chemical reactions – how they happen, what’s happening, and why!
Instructions Game Board
Choose from one of five categories. Then choose a point value. The larger the value, the more difficult
the question. Choose from one of four answers.When you are finished with each question, clickthe home button to go back to the game board.If you are playing as a team, the team with the
most points wins! Have fun, and remember,
SCIENCE RULES!
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Chemical Reactions Jeopardy Review
Signs of a Reaction
Balancing Equations
Types of Equations
ReactionRates
Vocabulary
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This sign occurs when 2 liquids form a solid
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Answer
What is a precipitate?
2 liquids form together to produce a newMaterial, a solid!
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Sorry,Wrong Answer!
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Robert Hooke first viewed cork cells using a Compound microscope he made himself
In 1663.
These are ALWAYS formed during a chemical reaction.
Answer
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Rust forming on the nail
This sign is often recognizable by “bubbles”.
Answer
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This sign could be measure with a thermometer.
Answer
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These are the 5 signs that a chemical reaction has
occurred.
Answer
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What are gas production, precipitate forming, change in
temp, change in props, and color change?
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Balance the equation:Fe2O3 + C Fe + CO2
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Answer
The numbers you add to balance an equation.
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Answer
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2Fe2O3 + 3C 4Fe +3CO2
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H2O H2 + O2
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Answer
2H20 2H2 + O2
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The numbers in a chemical formula that determine the
ratio of atoms in a compund.
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Answer
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Count the number of atoms for each element in the products in the following
equation: 2AgNO3 + ZnCl2 2AgCl + Zn(NO3) 2.
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Answer
Ag = 2Cl = 2Zn = 1N = 2O = 6
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The type of reaction when bonds are broken.
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What is decomposition!!!!
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Layers of this mutated rat decomposing!!!!!!
The type of reaction when bonds are formed.
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Answer
The following equation is this type of reaction
2NaCl + H2SO4 . Na2SO4 + 2HCl
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Answer
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4 Fe + 3 O2 2 Fe2O3Name the type of reaction!
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What is a synthesis reaction!!!
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2NaClO3 NaCl + O2
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What are synthesis reactions!!
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The direction you move the decimal when you go from a
‘big’ unit to a ‘small’ unit
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What is to the right!!!
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When you increase the temperature, this happens
to a reaction.
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This material when added to a reaction slows down the
reaction rate.
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What is an inhibitor?
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This material, when added to a reaction speeds up the rxn.
rate.
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What is a catalyst?
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When surface area is increased, this happens to a
reaction.
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What is speeds up?
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The 3 mains ways a reaction rate can be
altered.
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What is temperature, concentration, and surface
area?
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The materials you start out with during a chemical
reaction.
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A Reaction that releases energy.
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What is an exothermic reaction?
Matter is neither created or destroyed during a chemical reaction is the law of this.
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What is the law of conservation of matter?
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During a reaction, atoms are re-____________.
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What is rearranged?
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This shows the ratio of elements in a compound.
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What is a subscript or a chemical formula!
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2L = _____ ml
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Answer
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What is speeds up?
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