2.1 Introduction to Compounds

Announcements
DATE: 9/12/16
HAVE OUTS:
Marvel Card
Agenda
Pencil
Periodic Table
HOMEWORK:
Identifying Compounds Homework
Do First:
Classifying element warm up / OBJECTIVES:
Student will be able to
  • Given the formula or elements that make up the chemical compound, make a claim about the type of compound (ionic, molecular, or acid) that most likely form between the elements using the Periodic Table.
AGENDA:
Do First
Notes
IMPORTANT DATES:
9/13- Quiz on compounds
Do First:
Using your periodic table, classify the following elements as a metal, nonmetal or semimetal.
Iron Oxygen
Nitrogen Silicon
Hydrogen Oxygen

Key Question

  • How can you identify a compound based on its chemical formula?

Types of Compounds

Key Vocabulary

  • A is the chemical combination of two or more different elements.
  • We will study two different types of compounds.

We will also discuss a special type of molecular compound known as an.

  • We use chemical formulas to model compounds.
  • A uses element symbols and subscripts to model the elements and the number of each element in a compound.

Examples: H2Oor Al2O3 or Na2SO4

How Do You Identify a Compound?

Ionic Compounds / Molecular Compounds / Acids

Examples for Classifying Compounds

Predict what type of compound the following elements will form.

2.1 Introduction to Compounds

1)Fe and O

2)O and N

3)C and Cl

4)Cr and Ne

2.1 Introduction to Compounds

Classify the following compounds as ionic compounds, molecular compounds, or acids based on the model provided.

2.1 Introduction to Compounds

5)NaCl

6)CO2

7)FeSO4

8)H3PO4

9)NO2

10)NH3

2.1 Introduction to Compounds

2.1 Introduction to Compounds

Homework on Identifying Types of Chemical Compounds
Key Question #1: How can you identify metals, nonmetals, and semimetals using the periodic table?
1)Identify the following elements as a metal (M), nonmetal (NM).
a.argon (Ar)
b.fluorine (F)
c.potassium (K)
Key Question #2: How can you identify a compound based on its chemical formula?
2)Classify the following compounds as an ionic compound or a molecular compound based on the given model.
  1. NO2
  2. AlCl3
  3. PF3
  4. ClO
  5. SF6

2.1 Introduction to Compounds

  1. SiO2
/
  1. CaI2
/
  1. SF4

  1. KI
/
  1. P5O10
/
  1. BaO

  1. NO2
/
  1. HBr
/
  1. H2S

  1. K2S
/
  1. SO3
/
  1. HPO3

  1. HI
/
  1. N2O4
/
  1. CaF2

  1. Na2S
/
  1. ClO
/
  1. HAt

  1. MgI2
/
  1. HF
/
  1. BeCl2

  1. PCl3
/
  1. HClO4
/
  1. HNO2

  1. Al2O3
/ 26. PbS / 29. ZnCO3
27. NiCl2 / 28. CoF3 / 31.Ba(NO2)3
30. H3PO4 / 33. H2C2O4 / 34. K2Cr2O7
32. Ti3(PO4)2 / 35. HC2H3O2 / 36. H2CrO4

Key:

Mild-

Molecular: 1, 11, 7, 5, 14, 22, 3, 17

Ionic: 19, 2, 4, 6,16, 21, 10

Acid: 2, 8, 9, 13, 18, 23, 24

Med: 25-28 are ionic

Spicy: 29, 34, 32, 31 are ionic with PAI

30, 33, 25, 36 are acids with PAI

KP (students should sort with following things in mind):

Molecular only have nonmetals (elements on the right side of the periodic table)

Ionic have 1 nonmetal with a metal (1 element from right side, 1 from left side)

Acids have H in the beginning

NameDateClass Period

2.1 Introduction to Compounds

Exit Ticket 2.1

  1. Distinguish between the following compounds by underlining ionic compounds, circling molecular compounds, and drawing a box around acids.

2.1 Introduction to Compounds

  1. Which of the following element(s) would form an ionic compound with magnesium? Circle all that apply.

ICoNaClBr

2.1 Introduction to Compounds

  1. Tommy Titan is working tenaciously on his chemistry homework when he encounters the following problem:

Classify the compound HCl as ionic, molecular, or an acid.

Tommy believes that the compound is ionic because H is located on the left side of the Periodic Table of Elements with metals, while Cl is located with the nonmetals. Is Tommy correct? If not, give the correct answer and explain your choice.

NameDateClass Period

2.1 Introduction to Compounds

Exit Ticket 2.1

  1. Distinguish between the following compounds by underlining ionic compounds, circling molecular compounds, and drawing a box around acids.

2.1 Introduction to Compounds

2.1 Introduction to Compounds

  1. Which of the following element(s) would form an ionic compound with magnesium? Circle all that apply.

ICoNaClBr

2.1 Introduction to Compounds

  1. Tommy Titan is working tenaciously on his chemistry homework when he encounters the following problem:

Classify the compound HCl as ionic, molecular, or an acid.

Tommy believes that the compound is ionic because H is located on the left side of the Periodic Table of Elements with metals, while Cl is located with the nonmetals. Is Tommy correct? If not, give the correct answer and explain your choice.