A Hunt For "Boom!" 
Chemical Reactions   

 CHEMICAL REACTION: PROCESS BY WHICH ONE OR MORE SUBSTANCES ARE CHANGED INTO ONE OR MORE DIFFERENT SUBSTANCES...

HANDY DANDY ANSWER SHEET

Part #1: Indicators of Chemical Reactions

CHEMICAL REACTIONS

CHEMICAL REACTIONS 2

1.) Name 5 evidences for chemical reactions. Give an example for each from the above links.

2.) What is an exothermic reaction?

3.) What is an endothermic reaction?

4.) What is a precipitate?

5.) What is the difference between a physical & chemical change?

 

Part #2: Chemical Reaction Equations

BASIC INFO FROM AN EQUATION

MEANING OF CHEMICAL EQUATION 

A BALANCED EQUATION

GENERAL INFO & TYPES INFO

6.) What are the starting materials in a chemical reaction called?

7.) What are the ending materials called?

8.) The arrow can "say" what 3 things?

9.) What do the symbols (s), (l), (g), (aq) and (r)stand for?

10.) What do you think this D  means?

11.) What is the easy way of stating the law of conservation of mass & what does this have to do with chemical equations?

12.) What is a coefficient?

13.) True or False. You can change a coefficient but never a subscript.

14.) What is the rule for a balanced equation? Each side must have....

15.) Write down 2 examples of balanced equations shown for reference.

 

Balancing Chemical Equations

GO THROUGH BOTH OF THESE TUTORIALS...MAKE SURE YOU UNDERSTAND THE PROCESS

DR. YUE-LING WONG'S TUTORIAL

NOW TRY YOUR HAND AT BALANCING EQUATIONS...PRACTICE UNTIL YOU ARE A PRO!! J

CLASSIC CHEMBALANCER

REVIEW CHEMBALANCER

BRAIN BOGGLE CHEMBALANCER

 

Part #4: Type of Chemical Reactions

CLASSIFICATION OF CHEMICAL REACTIONS

CLASSIFICATION OF CHEMICAL REACTIONS

16.) What are the 5 main types of chemical reactions? What is the general equation for each?

17.) Which type of reaction always has oxygen in the reactants & carbon dioxide & water in the products?

18.) Which type of reaction breaks down a compound into smaller parts?

19.) Which type of reaction yields 2 new compounds?

20.) Which type of reaction yields a new "free" element and a compound?

 

Part #5: Putting it all together

*Watch Clip:  "Reaction of sodium with chlorine"

21.) Is this an exothermic or endothermic reaction? Explain your answer

22.) Write the equation for the chemical reaction taking place? Which of the 5 main types is this?

*Watch Clip:  Sodium Iodide & Mercury (II) Chloride

23.) Which main type of reaction do you think this is? Explain your answer (hint: orange stuff)

*Watch Clip: Magnesium & Carbon Dioxide

24.) Write the general equation for the reaction. Which main type of reaction is this?

25.) Write the balanced equation for the reaction.

25.) Is this exothermic or endothermic? Explain your answer

*Watch Ice Bomb & Nitrogen Triiodide Detonation clips just 'cause they're cool!!!