Multiple Choice 5. Why are valence electrons important in identifying the group of an element ? BecauseA. valence electrons can be described as the innermost shell of an atomB. valence electrons described the location of the electrons in the outermost shell of an atomC. valence electrons remains to its orbitalsD. valence electrons are constant6. Unlike other noble gases, helium has two electrons. What makes helium a noble gas or stable element?A.. According to octet rule, helium completed its electron on the outer shellB. Helium belongs to group 8AC. According to octet rule, helium is a non-metalD. According to Hund's helium occupied 1 box with 2 max electrons7. Which of the following has a molecular geometry of tetrahedral?B. CCl,F2D. C20С. CS28. In which compound is hydrogen bonding found?A. ammonia B. carbonic acidA. SF2C. dolomiteD. sodium chloride9. How can a molecule become nonpolar if it contains polar bonds?A. If the molecules has a symmetrical geometry and has all bonds are the same, the bond dipolescancel and the molecule is non polar.B. If the atoms are C or H onlyC. If the atoms have big electronegativity difference but are linearD. If atoms are not belong to the noble gases10. Many organic solvents boil below 200 °C because of covalent bonding, while solids, such as copper,do not melt until thousands of °C because the atoms formA. hydrogen bondB. polar bond11. Which statement is correct about Isomerism?C. IONIC BONDvi D. NONPOLAR bondA. They differ in both physical and chemical properties.B. They have the different molecular formula.C. Chain isomers differ in the arrangement of their skeletonD. They have the same molecular formula.12. What reaction takes place when a substance reacts with oxygen gas, releasing energy in the form of light andheat?C. CombustionD. SaponificationA. Addition200 1B. Condensation13. Which of the following would undergo addition reactions?A. halogenB. alkyne14.Which of the following organic compound will form when a carboxylic acid and an alcohol undergoC. alkaneD. alcoholcondensation reaction?A. new C-C bondC. new N-O bondB. new O-C bondD. ester15. Which of the following types of reaction happens when alkene reacts with water yields in the production ofalcohol?A. SaponificationB. CondensationC. CombustionD. Addition III. Multiple ChoiceDirections: Choose the letter that corresponds to the correct answer. Write the chosen answer on the spaceprovided1. How do the quantum mechanics describe the atomic orbitals ?A. By using numbers B. By using pictures C. By using different structuresD. Bynumber of electrons2. Why are diamagnetic atoms not attracted to a magnetic field? BecauseA. they are slightly repelled by the magnetic fieldB. they are stable atomsC. they are lone paired electronsD. they are stable3. Why are noble gases called stable elements? BecauseA. they belong to group 8AB. they have completed the shell in each orbitalsC. they are non-metalsD. they are not applicable for any chemical reaction4. When can you say that an electron is on its excited state?A. If electrons remains its energy levelB. If electrons discharged its energy levelC. If electrons absorbed energy and occupy higher orbitals.D. If electrons are lost or gained

Since you have asked multiple questions questions, we will solve the first three question for you.…

III. Multiple Choice Directions: Choose the letter that corresponds to the correct answer. Write the chosen answer on the provided 1. How do the quantum mechanics describe the atomic orbitals ? A. By using numbers B. By using pictures C. By using different structures D. E number of electrons 2. Why are diamagnetic atoms not attracted to a magnetic field? Because_ A. they are slightly repelled by the magnetic field B. they are stable atoms C. they are lone paired electrons D. they are stable 3. Why are noble gases called stable elements? Because A. they belong to group 8A B. they have completed the shell in each orbitals Ç. they are non-metals

III. Multiple Choice Directions: Choose the letter that corresponds to the correct answer. Write the chosen answer on the provided 1. How do the quantum mechanics describe the atomic orbitals ? A. By using numbers B. By using pictures C. By using different structures D. E number of electrons 2. Why are diamagnetic atoms not attracted to a magnetic field? Because_ A. they are slightly repelled by the magnetic field B. they are stable atoms C. they are lone paired electrons D. they are stable 3. Why are noble gases called stable elements? Because A. they belong to group 8A B. they have completed the shell in each orbitals Ç. they are non-metals

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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