COT

1. CHEMICAL REACTIONS

2. CLASS, YES!
TEACHER: CLASS
STUDENTS: YES
TEACHER: BOYS
STUDENTS: SAY THE NUMBER OF BOYS WHO ARE ABSENT
TODAY.
TEACHER: GIRLS
STUDENTS: SAY THE NUMBER OF GIRLS WHO ARE ABSENT

3. ACTIVITY 1 : EVERYTHING HAS
CHANGED
VIDEO A. IRON NAIL-COPPER SULFATE
REACTION

4. Q1. WHAT HAPPENED TO THE COLOR OF THE COPPER
SULFATE SOLUTION?
ANSWER: THE COPPER SULFATE
SOLUTION TURNED
COLORLESS.

5. Q2. WHAT HAPPENED TO THE COLOR OF THE NAIL?
ANSWER: THE COLOR
TURNED REDDISH BROWN.

6. VIDEO B. MAGNESIUM RIBBON REACTION
Q3. WHAT HAPPENED TO THE MAGNESIUM RIBBON WHEN YOU
DIRECTLY BURNED IT?
ANSWER: IT PRODUCED A BRILLIANT
WHITE LIGHT.

7. VIDEO B. MAGNESIUM RIBBON REACTION
Q4. WHAT SUBSTANCE IN THE AIR COULD HAVE
REACTED WITH MAGNESIUM DURING BURNING?
ANSWER: OXYGEN FROM THE AIR REACTED WITH
MAGNESIUM.

8. VIDEO B. MAGNESIUM RIBBON
REACTION
Q5. DESCRIBE THE APPEARANCE OF THE
PRODUCT FORMED.
ANSWER: THE PRODUCT FORMED WAS A
WHITE ASH.

9. VIDEO C. HYDROGEN PEROXIDE (AGUA
OXIGENADA) AND MANGANESE DIOXIDE REACTION
Q6. WHAT HAPPENED TO THE
MIXTURE?
ANSWER: IT PRODUCED BUBBLES.

10. VIDEO D. VINEGAR AND BAKING SODA REACTION
Q7. WHAT DO YOU OBSERVE IN THE MIXTURE?
ANSWER: THE MIXTURE
PRODUCED BUBBLES.

11. VIDEO E. COPPER SULFATE-SODIUM HYDROXIDE
REACTION
Q10. WHAT DID YOU
OBSERVE?
ANSWER: A BLUE SOLID
WAS PRODUCED.

12. SANDWICH SHOP

13. TEACH!
I CAN __________________________________
1. DISTINGUISH BETWEEN REACTANTS AND
PRODUCTS.
2. WRITE A CHEMICAL EQUATION.

14. ACTIVITY 2: “WHAT’S IN A
REACTION?”
OBJECTIVES:
1. DISTINGUISH BETWEEN REACTANTS AND
PRODUCTS.
2. WRITE A CHEMICAL EQUATION.

15. REACTANTS AND PRODUCTS
The following chemical reactions took place in activity 1, videos A to
E.
1. Iron reacts with Copper Sulfate (CsO4) and forms Iron (II) Sulfate
(FeSO4) and Copper.
2. Magnesium combines with Oxygen gas (O2) to produce
Magnesium Oxide
3. Hydrogen Peroxide (H2O2) in the presence of Manganese Dioxide
(Mno2) produces water and Oxygen gas.

16. 4. Acetic acid (CH3COOH) and Sodium
bicarbonate (NaHCO3) produce Sodium
Acetate (NaC2H3O2) with the release of
Carbon Dioxide gas and water.
5. Copper Sulfate (CuSO4) reacts with
Sodium Hydroxide (NaOH) to produce
insoluble Copper (II) Hydroxide Cu(OH)2 and
Sodium Sulfate (Na2SO4) solution.

17. Reactions Reactants Products
1
2
3
4
5
Fill in the table below with the Reactants and Products from the chemical
reactions above.
Below each number, write the symbol or formula of the reactant and product.
Table 6. Reactants and Products

18. B. SYMBOLS USED IN CHEMICAL EQUATION
Symbol Meaning
+ to show combination
of reactants or
products

19. B. SYMBOLS USED IN CHEMICAL EQUATION
Symbol Meaning
To produce; to form; to
yield

20. B. SYMBOLS USED IN CHEMICAL EQUATION
Symbol Meaning
(s), (l), (g), (aq) (s)-solid (l)-liquid (g)-gas (aq)-
aqueous (substance is dissolved
in water)

21. B. SYMBOLS USED IN CHEMICAL EQUATION
Symbol Meaning
Reversible reaction

22. B. SYMBOLS USED IN CHEMICAL EQUATION
Symbol Meaning
Heat Indicates that heat is
supplied to the reaction

23. B. SYMBOLS USED IN CHEMICAL EQUATION
Symbol Meaning
Pt
A formula written above or
below the yield sign
indicates its use as a
catalyst or solvent

24. Using the symbols and formulas in Table 6 and the
symbols in Table 7, write the chemical reaction using
these symbols to complete chemical equation.
Reaction Chemical Equation
1
2
3
4
5
Table 8: Chemical Equation

25. CHECK YOUR ANSWERS

26. TABLE 8. CHEMICAL EQUATION

27. REACTANTS AND PRODUCTS
1. Iron reacts with Copper Sulfate (CsO4) and forms
Iron (II) Sulfate (FeSO4) and Copper.
2. Magnesium combines with Oxygen gas (O2) to
produce Magnesium Oxide
3. Hydrogen Peroxide (H2O2) in the presence of
Manganese Dioxide (Mno2) produces water and
Oxygen gas.

28. 4. Acetic acid (CH3COOH) and Sodium
bicarbonate (NaHCO3) produce Sodium
Acetate (NaC2H3O2) with the release of
Carbon Dioxide gas and water.
5. Copper Sulfate (CuSO4) reacts with
Sodium Hydroxide (NaOH) to produce
insoluble Copper (II) Hydroxide Cu(OH)2
and Sodium Sulfate (Na2SO4) solution.

29. CHEMICAL EQUATION
• A CHEMICAL EQUATION REPRESENTS THE WAY IN
WHICH A REACTION REARRANGES THE ATOMS IN
REACTANTS.
• TO WRITE AN EQUATION, YOU MUST KNOW THE:
- REACTANTS AND PRODUCTS - ATOMIC SYMBOLS
AND FORMULAS OF THE REACTANTS AND
PRODUCTS - DIRECTION OF THE REACTION.

30. VIDEO CRITIQUE
GUIDE QUESTIONS:
1. NAME SOME PRODUCTS OF CHEMICAL REACTION.
2. WHAT ARE THE ADVANTAGE/S AND
DISADVANTAGE/S OF THESE PRODUCTS?
3. HOW ARE YOU GOING TO APPLY THIS IN YOUR
OWN FAMILY?

32. GUIDE QUESTIONS:
1. NAME SOME PRODUCTS OF CHEMICAL
REACTION.
2. WHAT ARE THE ADVANTAGE/S AND
DISADVANTAGE/S OF THESE PRODUCTS?
3. HOW ARE YOU GOING TO APPLY THIS
IN YOUR OWN FAMILY?

33. SHARE YOUR ANSWERS…
USING SHAREIT APP, SEND YOUR ANSWER BY
GROUP IN THIS FORMAT.
EX.: 2,4
FIRST TO SEND THEIR ANSWER WILL BE THE
WINNER.
NOTE: ONLY ONE CELL PHONE WILL BE USED. IF POSSIBLE, PLEASE CHANGE THE
SHAREIT NAME WITH YOUR GROUP NAME/NUMBER.

34. TEACH!
I CAN __________________________________
1. DISTINGUISH BETWEEN REACTANTS AND
PRODUCTS.
2. WRITE A CHEMICAL EQUATION.

35. ½ crosswise
List down at least ten (10) chemical reactions in
doing common household chores.

36. THANK YOU SO MUCH!!!