Template by Bill Arcuri, WCSD Click Once to Begin JEOPARDY! Chemical Equations.

Template byBill Arcuri, WCSD

Click Once to BeginJEOPARDY!Chemical Equations

JEOPARDY!

100 100 100 100 100 100

200 200 200 200 200 200

300 300 300 300 300 300

400 400 400 400 400 400

500 500 500 500 500 500

Vocabulary

Alter Arrange-ment of Atoms

Conser-vation of

Energy Changes

Life and industry

Atoms and Molecules

Vocabulary100

This reaction most likely will cause a decrease in temperature.

What is an endothermic reaction?

Vocabulary200

The word for substances always present at the

beginning of a chemical reaction.

What are reactants?

Vocabulary 300The use of photoresist is one step in the process of making

What are microchips?

Vocabulary400

A reaction in which a reactant breaks down into simpler

products is called this.

What is a decomposition reaction?

Vocabulary500

The energy needed to break chemical bonds in reactants

and formchemical bonds in products.

What is bond energy?

Alter Arrangement of Atoms100

These are the reactants in equation #2.

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What are C2H2 and O2?

This happens to matter when a chemical reaction occurs in a

closed system.

What is conservation of matter or conservation of mass?

The chemical formulas for the products in equation 3.

Daily Double!!!

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What are NO2 and H2O

Alter Arrangement of Atoms400The breakdown of water molecules (H2O) into hydrogen (H2) and oxygen (O2) molecules is an exampleof aA. chemical change B. physical changeC. combustion reaction D. synthesis reaction

What is A. chemical change?

Alter Arrangement of Atoms500The arrow indicatesthis in the chemical equation 2H2 + O2 2H2O

What is the direction of the reaction.

Conservation of Mass100

In a chemical reaction, the mass of the products is alwaysA. slightly more than the mass of the reactants B. twice as much as the mass of the reactants C. equal to the mass of the reactants D. less than the mass of the reactants

What is C. equal to the mass of the reactants ?

Conservation of Mass

200 You can change this to

balance a chemical equation.

What is a coefficient?

How could you balance this equation?

Al + Fe2O3 Al2O3 + Fe

2Al + Fe2O3 Al2O3 + 2Fe

Conservation of Mass400The diagram below shows a balance being used to measure a burning candle in a sealed glass ball before and after the burning is complete

Before AfterAs the candle burns, the size of the candle decreases, but the reading on the balance does not change. This is demonstrated by this experiment.

What is mass is conserved in a closed system ?

Or, The total mass of the system is

constant?

The law of conservation of mass can be demonstrated by a chemical reaction. Which of the following models of a chemical reaction best represents the law of conservation of mass?

B. C. D.

What is A. ?

Energy Changes100

This is given off when an exothermic reaction occurs.

What is energy

Energy Changes200

In this type of reaction the bond energies of the reactants is more

than the bond energy of the products.

What is an endothermic reaction?

Energy Changes300

Photosynthesis is this type of a reaction.

6CO2 + 6H20 + energy 6O2 + C6H12O6

What is endothermic?

Energy Changes400

This reaction will most likely cause an increase in

temperature.

What is exothermic?

Energy Changes500

In an exothermic reaction, the

bond energy of the reactants is _______ than the bond energy of

the products.

What is less than?

Life and industry100

A catalytic converter creates this type of reaction.

What is a combustion reaction.

This reaction 6CO2 + 6H2O + energy --> C6H12O6 + 6O2

takes place in this Kingdom.

What is the Plant Kingdom?(or Plantae)

The opposite of Photosynthesis.

What is cellular respiration?

The common names of the reactants and products of

photosynthesis.

Daily Double!!!

What is Carbon dioxide, water and sunlight react to form

sugar and oxygen?

The catalyst in catalytic converters.

What are metals bonded to a ceramic structure

(honeycomb)?

Atoms and Molecules100

The name for a substance of all the same kind of atom.

What is an element?

Which of the following substances can be separated into several elements? A. nitrogen B. zinc C. air D. aluminum

What is air?

What is the smallest unit of an element that still has the

properties of that element?

What is an atom?

Two or more atoms covalently bonded are called this.

What is a Molecule?

The chemical formula for glucose.

What is C6H12O6?

Final Jeopardy Describe how concentration and temperature are related to the rate of a chemical reaction. Thenidentify and describe one more factor that can affect reaction rate.

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Concentration describes the number of particles in a given volume. As the concentration of the reactants increases, there are more particles to collide and react with one another. This can increase the reaction rate. Temperature is related to the rate of a reaction. Temperature is also related to energy. When you add energy to a reaction, it increases particle motion. This increase in motion is measured by an increase in temperature. Reactions at higher temperatures have reactant particles that are moving faster. This results in more reactant collisions and a faster reaction rate. Surface area of the reactants can also affect the reaction rate. Increased surface area means that more of the surface of the reactant is exposed. As surface area increases, the rate of the reaction increases as well.

Template by Bill Arcuri, WCSD Click Once to Begin JEOPARDY! Chemical Equations.

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