Matter, Change and Chemical Nomenclature

2. Chemistry Background Information!
Our classroom set of textbooks – Pearson
Chapter 2
Define all bold words/concepts vocabulary in
sections 2.1-2.3!
Your definitions need to be complete enough
that another person (not in class) can
understand!

3. I recommend you title the entry as the chapter and section you
are working in (helps with clarity and continuity)!
Mass
Volume
Extensive Properties
Intensive Properties
Etc.
Again, your definitions need to be complete enough that another
person (not in class) can understand!

4. Section 2.3 – Elements and Compounds…1st look at
the PERIODIC TABLE! (Time to color!!!)
Handout: Periodic Table of Elements
Periods (1-7)
Groups or Families (1-18)
Metals/Nonmetals/Metalloids
Transition Metals; Post Transition Metals;
Lanthanides & Actinides
Family Names
Oxidation Number – [Charge on an ion due to difference
between protons and electrons.]
Known Oxidation States: (memorize)

6. Chemical nomenclature falls into 4 categories for us
in this class:
1. Ionic Compounds - metal bonding to a nonmetal
via an ionic bond…transfer of electrons
2. Covalent Molecules - nonmetal bonding to
another nonmetal via a covalent bond…sharing
electrons
3. Acids – Hydrogen bonded to a nonmetal or
polyatomic ion (formula starts with ‘H’)
4. Organic Chemistry – typically carbon-based
molecules (very brief for this level of chem)

7. Making Neutral Compounds Activity

8. Use your notes from yesterday and your periodic table:
1. List two intensive and two extensive properties of a 25 g sample of
water.
2. A student from another class states that gold is dense and that
density is an extensive property. Is this correct or incorrect? Justify
your answer with a short statement.
3. What method of separation is most effective for separating the
following mixtures:
a. A mixture of rubbing alcohol dissolved in water.
b. A mixture of dirt in water.
4. Identify the period, family and most probable oxidation state for
each of the following elements:
He; K; Ag; P; Br; Sn; Mg

9.  Binary Ionic Nomenclature
 Practice Problems – On Canvas…Unit 0 & 1…Early Nomenclature
 More Practice…worksheet!
 Google Slides – Binary Molecular Nomenclature

10.  Nomenclature Flowchart
Practice Problems – Binary Ionic…tile
activity again but now you need to name the
compounds!
Nomenclature Flowchart and practice
problems worksheet.

11.  Quiz on Unit 1 and the initial periodic table!

13. NaI _____________
Potassium oxide_________
Al(NO3)3 ______________
Zinc phosphate ________
AuCl3 _____________________
Iron (II) sulfide _____________
Cr2(SO4)3 ___________________
Cobalt (I) phosphate __________

14. Covalent bonding = nonmetal to nonmetal (Nonmetals
form anions and two negative particles will not ‘stick’ to each other so we
cannot use charges here!)
Nonmetals share electrons…so the nomenclature
system simply uses prefixes to note the formula of
the molecule.
Prefixes:
Note:
avoid two vowels if possible
Mono= 1 Hexa = 6
Di = 2 Hept = 7
Tri = 3 Oct = 8
Tetra = 4 None = 9
Penta = 5 Deca = 10

15. Two types of acids:
Binary…H and another nonmetal
Hydro(root of nonmetal)ic acid
Oxyacids…involves a polyatomic containing
oxygen!

16. Complete the following table:
Potassium nitride Titanium (IV) sulfide
Al2O3 Pt3As2
Strontium chlorate Hydrosulfuric acid
HF V(C2H3O2)6
Sulfur dioxide P2O5

17. Two types of acids:
Binary…H and another nonmetal
Hydro(root of nonmetal)ic acid
Oxyacids…involves a polyatomic containing oxygen!
Look at the polyatomic suffix…
-ate becomes –ic
-ite becomes –ous
Simply add acid at the end!
Examples: H2SO4 vs H2SO3

18. Unfortunately, there are almost always some
exceptions to the rules we learn!
Examples: (all have an asterisk on the back
of your periodic table)

19. 1. How many significant figures are in each of the
following:
a) 0.006 050 b) 40,500 c) 1.200 x 106 d) 10,001,000
2. Round this value off to four sig figs and write your final
answer in scientific notation: 4,059,401
3. Which of the following names or formulas is/are
incorrect? Correct the error(s) if present.
a) Pb(NO3)2 = lead nitrate
b) cadmium(II) sulfide = CdSO4

20. More practice than you could ever need
worksheet (cont.)
Bottom and back of the Flowchart Handout!
Our quiz tomorrow:
NOMENCLATURE...ALL WE HAVE COVERED TO
DATE!
Significant Figures.
Material (limited) from the textbook (sections 2.1-2.3).

21.  Good luck!

22. Units of metric measurement – Table 3.2 p. 75 (record
this in your notes…or the chart at the front of the class)
Textbook – p. 84 …read section 3.3
Examples on the board of the technique…
Sorry but you MUST show all work for credit!
NO EXCEPTIONS! Ratio method will yield correct answers
but you will not get credit as your units are obscured.
Work problems #74-75 on p. 96 (show all work and pay
attention to sig figs)

23. Showing all work…normal conversions…
Using scientific notation to your advantage…
Short-cut from one metric unit to another…
Converting square or cube conversions factors…
Known conversions…
1 cm3 = 1 mL

24. Convert to the desired unit…showing all work!
1) 45.5 inches to feet
2) 0.550 gal to ounces (4 qt = 1 gal; 2 pints = 1 qt; 16 oz = 1
pt)
3) 14,259 feet to miles