The document provides an overview of chemical reactions and equations. It explains that a chemical reaction requires fuel, oxygen, and heat to occur. It also discusses how to write and balance chemical equations so that the number of atoms are equal on both sides according to the law of conservation of mass
Sa pamamagitan ng araling ito, mabibigyang-linaw ang konsepto ng kolonisasyon kung saan mauunawaan ang mga naging layunin at pamamaraan ng mga Espanyol sa pananakop sa Pilipinas sa panahon ng kolonyalismo. Malalaman ang mga paglalakbay na inilunsad ng mga Espanyol upang makatuklas ng lupain hanggang sa makarating at makapagtatag sila ng pamayanan sa ilang bahagi ng ating kapuluan.
MGA NATATANGING PILIPINO SA IBA'T IBANG LARANGANasa net
MGA NATATANGING PILIPINO
SA IBA'T IBANG LARANGAN
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Sa pamamagitan ng araling ito, mabibigyang-linaw ang konsepto ng kolonisasyon kung saan mauunawaan ang mga naging layunin at pamamaraan ng mga Espanyol sa pananakop sa Pilipinas sa panahon ng kolonyalismo. Malalaman ang mga paglalakbay na inilunsad ng mga Espanyol upang makatuklas ng lupain hanggang sa makarating at makapagtatag sila ng pamayanan sa ilang bahagi ng ating kapuluan.
MGA NATATANGING PILIPINO SA IBA'T IBANG LARANGANasa net
MGA NATATANGING PILIPINO
SA IBA'T IBANG LARANGAN
Gawa kayo account dito sa slide share para makuha nyo yung file..
you must create an account here on slide so you can download the file..
thanks and goodluck!
Chemical formulas are present in this PPT file. Some of the basic chemical formulas you can learn and write from here. These are not tough neither too complex.
An easy way to educate faster and better how a chemical reaction occurs Please subscribe share and like very soon wish you a good luck and good life
e-learning Done by Saleem Halabi
8th Grade Integrated Science Chapter 9 Lesson 1 on understanding chemical reactions covers products, reactants, conversation of mass, and rearranging of atoms.
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How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
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Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
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A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
2. RECALL
What is a Chemical Reaction?
What is a Chemical Equation?
Give example/s of a chemical reaction
written in a chemical equation.
Identify the type of chemical reaction is
involved in the given examples.
3. Overview
• Fire has fascinated people for so long, that the ancient people
even regarded it as one of the earliest elements.
• Fire was so important to them and they described it as an
element that changes everything.
• The earliest theory about burning was the Phlogiston Theory.
• This theory by George Ernst Stahl in the 17th century stated
that when a material burns, it releases a substance known as
phlogiston, and this theory was accepted for a very long time.
4. Phlogiston (Greek phlogistos, “flammable”)
• hypothetical substance, representing flammability,
postulated in the late 17th century by the German chemists
Johann Becher and Georg Stahl to explain the
phenomenon of combustion.
• According to the phlogiston theory, every substance
capable of undergoing combustion contains phlogiston,
and the process of combustion is essentially the process of
losing phlogiston.
5. •3 factors should be present in proper
conditions and proportions.
1. Fuel
2. Oxygen
3. Heat
For burning to occur
6. • Analyze the information that can be gathered in
the chemical equation :
2 H2 + O2 → 2 H2O
• Note that the coefficient (number) placed before
the formulas indicate the number of molecules or
moles.
7. • Determiningthe correct coefficients balances
the number of atoms in the reactant and
in the product side, allowing it to follow the
•Law of Conservation of Mass.
8. Steps in Balancing Equation
• Write the unbalanced chemical equation, make sure
you have followed correctly the rules in writing
formulas of compounds.
• Take note of the elements present in the reactant and
product side.
• Count the number of atom/s of each element present
in the reactant and product side.
9. Steps in Balancing Equation
• Apply the Law of Conservation of Mass to get the
same number of atoms of every element on each side
of the equation.
• Balance chemical equations by placing the
appropriate coefficients before the symbol or formula.
• Do not change the subscripts of the formula in an
attempt to balance the equation as it will change the
identity of the components.
10. KEY CONCEPTS:
• For a chemical equation to conform to the Law
of Conservation of Mass, it has to be
balanced.
• Chemical equations are balanced by placing the
appropriate coefficients before the symbols
or formulas of reactants andproducts.
• Certain steps are observed in balancing
reactions.
11. KEY CONCEPT TO EMPHASIZE:
• Law of Conservation of Mass states that mass is
conserved in a chemical reaction. The total mass
of the reactants is equal to the total mass of the
products. No new atoms are created or
destroyed, there was only grouping or
regrouping (rearrangement) of atoms.
12. ENRICHMENT:
• Identify the type of chemical reaction and balance the following
chemical equations .
• 1. NaOH + KNO3 NaNO3 + KOH
2. CH4 + O2 CO2 + 2 H2O
3. Fe + NaBr FeBr3 + Na
4. CaSO4 + Mg(OH)2 Ca(OH)2 + MgSO4
5. NH4OH + HBr H2O + NH4Br
13. Note: Follow the Law of Conservation of mass.
Name the chemical reaction present in the following
equation. Then, balance each chemical equation.
14. Agreement/Assignment:
• Classify the following unbalanced chemical equations
according to the six types of chemical reactions and
balance if necessary.
1. P4 + O2 P2O5
2. NaNO3 NaNO2 + O2
3. C18H18 + O2 CO2 + H2O
4. H2SO4 + NaOH NaSO4 + H2O
5. 10. NiSO4 + Li3PO4 H20 + CO2