1 / 9

Important Information:

This study guide covers naming and writing formulas for molecular compounds. Learn how prefixes indicate the number of atoms and practice with relevant examples. Check your answers in Set A-D practice problems.

dharrison
Download Presentation

Important Information:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Important Information: Periodic Table of Ions Sec 7.1 Practice Problems p. 211 Set A (1-2) p. 213 Set B (1-2) p. 215 Set C (1-2) p. 217 Set D (1-2) Chapter 7 Notes: A (1-5) B (1-5) C (1-3) add: D-E Chapter 7 Vocabulary 1-13 Activity: Counting Atoms due last Fri Activity: Naming Ionic Compoundsdue Wed Activity: Naming Molecular (Covalent) Compoundsdue Thursday Sec 7.1 Study Guide due Mon

  2. Section 7.1Naming and Writing Formulas for Molecular Compounds The prefix in the name of a binary molecular compound tells how many atoms of each element are present in each molecule of the compound.

  3. Section 7.1Naming and Writing Formulas for Molecular Compounds Molecular compounds are… made of just nonmetals smallest piece is a molecule can’t be held together by opposite charge attraction can’t use charges to figure out how many of each atom (there are no charges present)

  4. Molecular compounds are easier! • Ionic compounds use charges to determine how many of each. • Molecular compounds: the name tells you the number of atoms. • prefixes tell you exact number of each element present!

  5. D. Covalent Prefixes(Figure 1.4, p.216) • 1 = mono- (monoxide) used only with oxygen when 2nd element • 2 = di- • 3 = tri- • 4 = tetra- • 5 = penta- • 6 = hexa- • 7 = hepta- • 8 = octa- • 9 = nona- • 10 = deca-

  6. E. Naming Molecular Compounds 1. confirm it is binary molecular compound (two nonmetals) 2. use subscripts to determine prefix 3. first element: prefix+name 4. second element: prefix+name with –ide suffix • Normally, we do not have double vowels when writing names (oa oo) +name +-ide Prefix Prefix +name di chlorine octa oxide oct Ex: Cl2O8

  7. Practice by naming these: = dinitrogen monoxide(also called nitrous oxide or laughing gas) • N2O • NO2 • Cl2O7 • CBr4 • CO2 • CuCl2 = nitrogen dioxide = dichlorine heptoxide = carbon tetrabromide = carbon dioxide = copper (II) chloride (This one will not use prefixes, since it is an ionic compound!)

  8. Write formulas for these: P2O5 • diphosphorus pentoxide • tetraiodine nonoxide • sulfur hexafluoride • nitrogen trioxide • carbon tetrahydride • phosphorus trifluoride • dihydrogen monoxide I4O9 SF6 NO3 CH4 PF3 H2O

  9. 7.1 Practice Problems p. 211 Set A : 1-2 p. 213 Set B: 1-2 p. 215:Set C 1-2 p. 217:Set D 1-2 Finish a set and turn to Appendix E page (R121) to check and correct your answers.. Self-correct.

More Related