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Jeopardy. Choose a category. You will be given the answer. You must give the correct question. Click to begin. Choose a point value. Choose a point value. Click here for Final Jeopardy. Types of Reaction. Reactions. Equations. Bonds. Other. 10 Point. 10 Point. 10 Point.
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Jeopardy Choose a category. You will be given the answer. You must give the correct question. Click to begin.
Choose a point value. Choose a point value. Click here for Final Jeopardy
Types of Reaction Reactions Equations Bonds Other 10 Point 10 Point 10 Point 10 Point 10 Point 20 Points 20 Points 20 Points 20 Points 20 Points 30 Points 30 Points 30 Points 30 Points 30 Points 40 Points 40 Points 40 Points 40 Points 40 Points 50 Points 50 Points 50 Points 50 Points 50 Points
2H2O2 2H2O + O2 Id the type of reaction. MnO2
Decomposition Reaction
Id the type of reaction. 2Na + Br2 2NaBr
Id the type of reaction. Cu(SO4) + H2S H2(SO4) + CuS
Double replacement reaction
Zn + 2HCl ZnCl2 +H2 b) What does the arrow mean? a) Id the type of reaction.
a) Single replacement Reaction b) Yields or produces
What are reactants? • b) What are the reactants in this equation? Zn + 2HCl ZnCl2 +H2
The substances entering a chemical reaction. • b) Zn + 2HCl
What is the difference between endothermic and exothermic reactions?
Endothermic: Heat is absorbed Exothermic: Heat is released
A chunky substance (insoluble solid) forms in chemical reaction. Usually formed when 2 clear colorless substances are combined
a) What is the test for hydrogen? b) What is the test for oxygen?
Lighted match pops • Glowing splint relights
In a chemical reaction, how do the properties of the reactants and the products compare?
The properties will change because the atoms of the products rearanged.
What does the law of conservation of matter say? • What does it say about counting atoms?
a)Matter can not be created nor destroyed in a chemical reaction. b) There must be the same # of atoms of eachelement on each side of the equation.
b) If the equation is balanced, what does that mean? a) Is this equation balanced? Cu(SO4) + H2S H2(SO4) + CuS
Yes, the equation has the same number of atoms of each element on each side of the equation.
2Na + Br2 2NaBr • Does the coefficient 2NaBr mean the # of molecules OR # of atoms? • b) Does the subscript Br2 means the # of molecules or atoms?
Molecules • Atoms
H2(SO4) + BaCl2 2HCl + ____ Using the law of conservation of mass, predict the missing product.
a) b) Which molecule picture shows? 4Mg + 2Cl2 4MgCl
4 individual Mg atoms + 2 Cl Molecules Yields 4 molecules of MgCl compounds
The charge number tells the # of a)___ that are lost, gained or b)___.
electrons • shared
In the reaction 2GaBr3 2Ga + 3Br 3 Are the substances Ga and Br considered products or reactants?
Ga and Br are both products, they are elements, GaBr3 is the reactant, it is a compound
Any substance that is formed as a result of a chemical reaction is called ?
How many neutrons does this element have? • How many valence electrons does F have? 9 F 18.9984 2 7
10 neutrons • 19-9=10 • b) 7 electrons on the outer orbit
Large molecules such as glucose hold a lot of potential energy. How can we access this energy?
We break the bonds. The cells in our body absorb glucose, break the bonds and produces small molecules and lots of energy
2Li3N There are 2 different molecules. Always write the metal first
How many atoms of sodium? • b) How many atoms of oxygen? • 2Na3(CO4)2