CHEM 2021 University of New Orleans Module 7 to 11 Chemistry Study Guide

This test is going to cover module 7– Module 111. Name the most electronegative element?
2. Which of the following covalent bonds is nonpolar?
a. C-0 b. P-0 c. C-P d. N-H
3. The 3D shape of a molecule is determined primarily by both the type & the # of valence
electron groups that surround the central atom of the molecule. Write the types of valence
electron groups.
4. Fill In the blanks.
a) In tetrahedral shape of CH4 molecule the angle between the covalent bond is _____.
b) In pyramid shaped ammonia the angle between the covalent bond is _____.
c) In #D shaped water molecule the angle between the covalent bond is _____.
d) The angles between the covalent bonds in formaldehyde is ______.
5. Name two polar compounds.
6. What of interaction creates hydrogen bond and write the nature of the two elements
7. What is true about hydrogen bond?
a. It is weak bond
b. It is strong bond
c. It is neither weak nor strong bond
8. What is dipole-dipole force? Name compound that exhibit dipole–dipole interaction.
9. What is London force?
10. Which of the following molecules are reactants of the following reaction?
6 CO2(g) + 6H2O(l)→C6H12O6(aq) + 6O2(g)
a) CO2
b) H2O
c) C6H12O6
d) O2
11. What is the classification of the following reaction?
S(s) + O2 (g) → SO2 (g)
a) Synthesis
b) decomposition c) single replacement
d) double replacement
12. What is the limiting reactant if 0.125 mol of HCl react with 0.200 mol of KOH?
HCl + KOH → KCl + H2O
a) HCl b) KOH
13. In a chemical reaction the theoretical yield is 35.7 g and the actual yield is 15.2 g
calculate the percent yield of the reactant.
14. What occurs when a catalyst is added to a chemical reaction? Select the answer from the
following alternatives.
a) Reaction becomes more exothermic b) Reaction becomes more endothermic c)
Activation energy is lowered
15. Name one instrument that is utilized to measure the pressure of the enclosed gasses.
16. Explain the science of the using pressure cooker and autoclave.
17. Identify each law from the following equation (Boyle’’s law, Charle’s law, Gay- Lussac’s
law, Combined gas law, Avogadro’s law, Ideal gas law).
a. V1/T1=V2/T2
b. P1V1=P2V2
c. V1/n1=V2/n2
d. P1V1/T1=P2V2/T2
e. P1/T1=P2/T2
f. PV=nRT
18. Write Dalton’s law of partial pressure.
19. A mixture of gases contains Ne, Ar, & Xe. At STP, the partial pressure of Ar = 0.200 atm
& Xe = 0.586 atm. If the total pressure of the mixture is 2.00 atm, what is the partial
pressure of Ne? (4)
20. Name three water soluble and three water insoluble compound.
21. When water flows through the metal pipes water react with the mineral of the water and
the pipes. White associated reactions for both formation of hard water and scale.
22. Write the exaction properties for hypertonic, hypotonic and isotonic solution based on the
osmotic pressure of the solutions.
23. Write the properties of solution, colloid and suspensions in terms of particle size,
appearance, particle settling, and particle separation.
24. Write the normal glucose (fasting) and protein content range in human blood.
Read slide 57-59 ( module 11) , slide 12, 94 module 8, slide 29 in module 9, slide 46-48 in
module 10

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