please can you copy and oste these questions and do ut and return it in pdf form thank you so much life saver
The questions for your assignments are found at the end of the chapters in your book. Please provide your answers to the assigned questions on this answer sheet. Make sure you rename the file as your last name, followed by your first name, and A3 (i.e. Lastname_firstnameA3).
Chapter 6
Review Questions
2. What must happen in order to convert an atom into an anion? Into a cation?
5. Use the common ion table on the back endpapers of your text to determine the formulas for compounds composed of the following ions:
a) potassium and sulfide
b) cobalt(II) and bromate
c) ammonium and nitrate
d) hydrogen and phosphate
e) iron(III) and oxide
f) magnesium and hydroxide
6. Explain why P2O5 is named diphosphorus pentoxide, using prefixes, but Al2O3 is named aluminum oxide, without prefixes.
7. Explain why FeCl2 is named iron(II) chloride, using a Roman numeral, and BaCl2 is named barium chloride, using no Roman numeral. Why do neither use prefixes?
Paired Exercises
3. Write formulas for the following cations:
Please ensure that I can tell what is supposed to be superscript and what is supposed to be subscript if you are unfamiliar or unable to perform those functions.
a) potassium
b) ammonium
c) copper(I)
d) titanium(IV)
e) nickel(III)
f) cesium
g) mercury(II)
h) calcium
i) lead(II)
j) zinc
k) silver
l) hydrogen
m) tin(II)
n) iron(III)
7. Complete the table, filling in each box with the proper formula.
Anions
Cations
Br-
O2-
K+
KBr
Mg2+
Al3+
Zn2+
Zn3(PO4)2
H+
9. Write the names of each of the compounds formed in Question 7.
Insert the names of each compound formed in Question 7 into the table below.
Anions
Cations
Br-
O2-
K+
Mg2+
Al3+
Zn2+
H+
11. Write formulas of each of the following binary compounds, all of which are composed of nonmetals:
a) diphosphorus pentoxide
b) carbon dioxide
c) tribromine octoxide
d) sulfur hexachloride
e) carbon tetrachloride
f) dichlorine heptoxide
g) boron trifluoride
h) tetranitrogen hexasulfide
13. Name each of the following binary compounds, all of which are composed of a metal and a nonmetal:
a) BaO
b) K2S
c) CaCl2
d) Cs2S
e) Al2O3
f) CaBr2
g) SrI2
h) Mg3N2
23. Write the name of each compound:
a) ZnSO4
b) Hg2S
c) CuCO3
d) Cd(NO3)2
e) Al(C2H3O2)3
f) CoF2
g) Cr(ClO3)3
h) Ag3PO4
i) MnS
j) BaCrO4
Chapter 11
Review Questions
16. What are valence electrons?
18. State whether the elements in each group gain or lose electrons in order to achieve a noble gas configuration. Explain.
a) Group 1A
b) Group 2A
c) Group 6A
d) Group 7A
28. In a polar covalent bond, how do you determine which atom has a partial negative charge (δ-) and which has a partial positive charge (δ+)?
Paired Exercises
11. Classify the bond between these pairs of elements as principally ionic or principally covalent (use Table 11.5):
a) sulfur and oxygen
b) barium and nitrogen
c) potassium and bromine
d) carbon and chlorine
17. State the number of valence electrons in an atom of each of the following elements:
a) selenium
b) phosphorus
c) bromine
d) magnesium
e) helium
f) arsenic
19. How many valence electrons must be gained or lost for the following to achieve a noble gas electron configuration?
a) a potassium atom
b) an aluminum ion
c) a bromine atom
d) a selenium atom
23. Determine whether the following atoms will form an ionic compound or a molecular compound, and give the formula of the compound.
a) sodium and chlorine
b) carbon and 4 hydrogen
c) magnesium and bromine
d) 2 bromine
e) carbon and 2 oxygen
43. Classify each of the following molecules as polar or nonpolar:
a) CH3Cl
b) Cl2
c) OF2
d) PBr3
Chapter 13
Review Questions
27. What kind of covalent bond is formed when atoms do not share electrons equally?
Paired Exercises
5. In which of the following substances would you expect to find hydrogen bonding?
Hydrogen bonding? Indicate Y/N for the provided substances.
a) C3H7OH
b) H2O2
c) CHCl3
d) PH3
e) HF
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