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CHEMISTRY Unit 02: Bonding and Structure2.0 Relates bonding and structure to properties of matter.2.1 Analyses the primary interactions ofpolyatomic systems as a means of determining the structure and properties of matter.Overviews chemical bonds and understands the participation of valence electrons.Explains the formation of covalent bonds.Identifies the single bonds and multiple bonds.Draws Lewis structures of covalent molecules and groups of ions.Compare the nature of non- polar covalent bonds, polar covalent bonds and ionic bonds depending on the difference of electronegativity of the atoms involved in the bond. Describes the polar covalent nature of bond and molecules using the concepts of polarization and dipole moment giving suitable examples.Explains the formation of the dative-covalent bond.Explains the formation of ionic bondsExplains the structure and properties of ionic lattice using NaClExplains the covalent character of ionic bonds based on the polarizing power of cation and polarizability of anions.Explains the structure of the metallic bond.Identifies the covalent, ionic and metallic bonding as primary interactions.2.2 Analyses the shapes of covalent and polar covalent molecules and simple ionic groups.Draws the resonance structures commonly encountered and containing up to a maximum of ten atoms, by using standard rulesDescribes using suitable examples how sp, sp2 and sp3 hybridizations take place in the central atom. Describes the σ bond π bond as a result of linear and lateral overlapping of atomic orbitals.Explains using resonance the reason for the equality of bond lengths in the ozone molecule and the carbonate ion.Predicts using the valence shell electron pair repulsion theory, how the pairs of electrons are oriented around the central atom (electron pair geometry) of covalent molecules and ions and thereby the shapes of the molecule/ion (molecular geometry).Compares the bond angles of different types of molecules (exact values of bond angles will not be tested).Constructs the models of molecules to illustrate the shapes.Describes the variation of electronegativities according to the charge ,hybridization and oxidation number.(qualitative only)2.3 Analyses the secondaryinteractions existing in various systems as a means of determining the structure and propertiesof matter.Describes the types of secondary interactions using suitable examples.Highlights the relationship between the nature of secondary interactions present in a substance and its physical properties.Identifies the importance of secondary interactions and their effect on the state.Explains the formation of molecular lattices using given examples.Predicts the physical properties of lattice structures.
Identify three radioactive elements or reactions of different types and write the nuclear reaction for each element.
at tire depot a pair of new tires sells for 216 . the managers special advertise the same tires selling at a rate of
consider the reaction in which 410g of Ca(NO3)2 react with just the right amount of magnesium metal in a single replacement reaction. how many grams of lithium are required?
If you are using 5.25% (mass/mass) bleach solution and you determine that the density of the bleach solution is 1.08 g/mL, how many moles of sodium hypochlorite are present in a 4.00 mL sample
In a 4.09 liter container at 25C are placed 1.23 moles of O2 gas and 3.20 moles of solid C(graphite). If the carbon and oxygen react completely to form CO(g) what will be the final pressure in the container at 25C
A balloon filled wit .500 L of air at sea level is submerged in the water to a depth that produces a pressure of 3.25 atm. What is the volume of the balloon at this depth
plot the temperature distribution in all relevant dimensions for each side of the aluminum cylinder as a function of position for 5 different time intervals, ranging between (and explicitely including t=0 and t= infinity
Use the ideal gas equation to calculate the pressure exerted by 1.200mol of Cl2 in a volume of 5.075L at a temperature of 294.5K.
A 0.411-g sample of potassium hydrogen phthalate, KHC8H4O4 (molar mass=204.44 g/mol) is dissolved with 50 mL of deionized water in a 125 mL Erlenmeyer flask.
For each of the subsequent state a balanced chemical equation to represent the dissociation of the compound when it is dissolved in water. If the compound wouldn't dissociate write NRX.
Give the empirical formula of the following compound if a sample contains 11.6g of iron and 5.01g of Oxygen
Solid lead(II) sulfide reacts with aqueous hydrochloric acid to form solid lead(II) chloride and dihydrogen sulfide gas. Express the answer in a balanced chemical equation with all phases identified.
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