SUBJECT IS PHYSICAL SCIENCE PLEASE ANSWER THANKYOU. READ IT CAREFULLY 14:08A 0.27 7 Il64KB/SLet Us DiscoverHello there, learners! Are you ready to learn new knowledge today? To get your brainworking, let us have a simple brain teaser. If you are ready, let's get started.Activity 1. Fix ItInstruction: Arrange the scrambled words to form the word being described in eachcorresponding number.1. When a metal reacts with a nonmetal, valence electrons are transferred, the atomsbecome ions. (NCIIO ONBD)2. Electrons in the outermost shell. (EELNAVC SLEECRNTO)3. A bond that holds atoms together. (ICLMHCEA ONDB)4. A group of atoms bonded together. (CUOLLMEE)5. The chemical bond that results due to sharing of electrons. (EOACVNTL ODBN)That was a good brain exercise! We were able to quickly review the terms we neededto understand our topic for today. I think you are ready for our new lesson. Stay calm and havefun learning.What is polarity?Molecules are always neutral; they have equal number of protons and electrons andthey do not carry any charge. However, it might change based on the distribution of protonsand electrons on the molecule. Let us examine the figure below:Figure 1. Molecules A and Bwith different distribution ofprotons and electrons.Molecule AMolecule BThe protons and electrons in molecule A are evenly distributed throughout themolecule. On the other hand, the protons and electrons in molecule B are concentrated inGSC-CID-LRMS-ESSLM, v.r. 02.00, Effective April 21, 2021opposite sides. If protons and electrons are evenly distributed, themolecule is non-polar. If protons and electrons are not evenlydistributed; the molecule is a polar molecule. Polarity is a resultof uneven partial charge in the atoms of a given compound. Figure 2. Magnet with twoObserve figure 2, which shows that magnet has two sides, called different poles.the north and south poles. The same with polar molecules with twopoles, the positive and negative poles. Simple right?Identifying Molecular Polarity by Electronegativity DifferenceAtom has this tendency to attract a bonding pair ofelectrons, this is called electronegativity. Like in the game tugof war, if the force on both sides of the rope is not equal, oneside of the rope with lesser force will be pulled by the side withFigure 3. In a game tug of war, the greater force. An atom with greater electronegativity will pull好一side with lesser force will be pulled the atom with lesser electronegativity.by the side with greater force.Identifying the electronegativity of a molecule will helpyou determine what type of chemical bond is present in thatmolecule. Here are the steps you need to follow:Example: Identify the type of chemical bond existing in CO2a. Get the electronegativity value of the elements carbon (C) and oxygen (O).Carbon has 2.55 while Oxygen has 3.44 (refer to your periodic table)b. Subtract the electronegativity values of the two elements.A EN =3.44-2.55=0.89 is the electronegativity difference of Carbon and Oxygenc. Identify the type of chemical bond based on the table below.The chemical bond existing in CO, is polar covalent bond.Type of Chemical Bondlonic bondElectronegativity Difference1.70.4-1.7Polar Covalent bond

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SUBJECT IS PHYSICAL SCIENCE PLEASE ANSWER THANKYOU. READ IT CAREFULLY 14:08A 0.27 7 Il64KB/SLet Us DiscoverHello there, learners! Are you ready to learn new knowledge today? To get your brainworking, let us have a simple brain teaser. If you are ready, let's get started.Activity 1. Fix ItInstruction: Arrange the scrambled words to form the word being described in eachcorresponding number.1. When a metal reacts with a nonmetal, valence electrons are transferred, the atomsbecome ions. (NCIIO ONBD)2. Electrons in the outermost shell. (EELNAVC SLEECRNTO)3. A bond that holds atoms together. (ICLMHCEA ONDB)4. A group of atoms bonded together. (CUOLLMEE)5. The chemical bond that results due to sharing of electrons. (EOACVNTL ODBN)That was a good brain exercise! We were able to quickly review the terms we neededto understand our topic for today. I think you are ready for our new lesson. Stay calm and havefun learning.What is polarity?Molecules are always neutral; they have equal number of protons and electrons andthey do not carry any charge. However, it might change based on the distribution of protonsand electrons on the molecule. Let us examine the figure below:Figure 1. Molecules A and Bwith different distribution ofprotons and electrons.Molecule AMolecule BThe protons and electrons in molecule A are evenly distributed throughout themolecule. On the other hand, the protons and electrons in molecule B are concentrated inGSC-CID-LRMS-ESSLM, v.r. 02.00, Effective April 21, 2021opposite sides. If protons and electrons are evenly distributed, themolecule is non-polar. If protons and electrons are not evenlydistributed; the molecule is a polar molecule. Polarity is a resultof uneven partial charge in the atoms of a given compound. Figure 2. Magnet with twoObserve figure 2, which shows that magnet has two sides, called different poles.the north and south poles. The same with polar molecules with twopoles, the positive and negative poles. Simple right?Identifying Molecular Polarity by Electronegativity DifferenceAtom has this tendency to attract a bonding pair ofelectrons, this is called electronegativity. Like in the game tugof war, if the force on both sides of the rope is not equal, oneside of the rope with lesser force will be pulled by the side withFigure 3. In a game tug of war, the greater force. An atom with greater electronegativity will pull好一side with lesser force will be pulled the atom with lesser electronegativity.by the side with greater force.Identifying the electronegativity of a molecule will helpyou determine what type of chemical bond is present in thatmolecule. Here are the steps you need to follow:Example: Identify the type of chemical bond existing in CO2a. Get the electronegativity value of the elements carbon (C) and oxygen (O).Carbon has 2.55 while Oxygen has 3.44 (refer to your periodic table)b. Subtract the electronegativity values of the two elements.A EN =3.44-2.55=0.89 is the electronegativity difference of Carbon and Oxygenc. Identify the type of chemical bond based on the table below.The chemical bond existing in CO, is polar covalent bond.Type of Chemical Bondlonic bondElectronegativity Difference>1.70.4-1.7Polar Covalent bond< 0.4Non-polar Covalent bondNote: Polar bond is not the same as polar molecule.Always romomber that if the bond is non-polar thon the molecule is outematical 14:08A 10.0 7 l63KB/SLet Us TryUsing the concepts we've learned, classify the given compound in the table aspolar or non-polar based on their electronegativity values and molecular shape.Activity 2. Complete MeInstruction: Determine if the following molecules are polar or non-polar. Solve forelectronegative difference and determine its structure.Electronega ElectronegaMolecularElectronegativityDifferenceChemicaltivity valueof the 1sttivity valueof the 2ndelementPolarity(Polar orNon-polar)MoleculeStructureBondelementex: Carbondioxide (CO2)1. water (H2O)C= 2.55O=3.440.89PolarLinearNon-polarGSC-CID-LRMS-ESSLM, v.r. 02.00, Effective April 21, 20212. Sodiumchloride (NaCI)3. Calciumoxide (Cao)4. Carbonmonoxide (CO)5. Carbontetrachloride(CCl)(CCL.)Let Us DoIt's experiment time!Activity 3. Testing the PolarityMaterials: water, vinegar, oil, alcohol, black pepper, sugar, 6 disposable glasses, spoonProcedure:1. Obtain 6 clean disposable glasses and prepare the following set-up.Set-up 4: vinegar + oilSet-up 5: vinegar + alcoholSet-up 6: oil + sugarSet-up 1: water + vinegarSet-up 2: water + black pepperSet-up 3: water + alcohol2. Thoroughly stir each mixture and observe carefully.Note: •Do not forget to wash and dry the spoon after each use.• Properly label each set-up.• Samples with oil should first be mixed with dishwashing liquid beforedisposing down the sinkComplete the table below.SubstanceSubstanceвvinegarblack pepperPolar orPolar orSoluble orMiscible orANon-PolarNon-polarInsolubleImmiscible1. water2. water3. water4. vinegar5. vinegar6. oilGuide Question:a. Which of the following set-ups mixed well? Which did not?b. What can you infer from the result of this activity?alcoholoilalcoholsugarLet Us ApplyGood job! We are almost done. For this last activity, you need to relate theimportance of learning the concent of polarity in vour daily lives. Choose only one from the

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