Page 60 - Demo

Flinn Lab Activities and Demonstrations
Molecules, Compounds and Formulas
1-800-452-1261
flinnsci.com
58
Laboratory Kits .................................................. 58–59 Demonstration Kits .................................................. 60 Models................................................................ 60–65
Analysis of Food Dyes—General Chemistry Guided-Inquiry Experiment
See page 16.
Chemical Formulas—
Student Laboratory Kit
By: The Flinn Staff
Writing formulas can be a real challenge for many students. Flinn has developed a kit that will help your students understand why atoms combine in certain ratios and how to write formulas for the compounds formed. Students experimentally determine the chemical formulas for various ionic compounds by performing three laboratory experiments. In each of the first two investigations, students combine various ratios of two solutions and observe which ratio produces the most precipitate. Students then determine the correct formula for the new compound. The third inves- tigation provides an opportunity for higher-level, open-ended thinking in which students design their own experiment. Students first write reactions to decide which chemicals to combine and how much they need. Students predict possible results and then perform their own experiments.
Detailed Instructor’s Notes and reproducible student handouts include easy-to-follow lab instructions, sample data, answers to questions and in-depth background information. All chemicals and specialized equip- ment are provided. Graph sheets, a common ion chart and a solubility rules chart are also included.
Complete for 30 students working in pairs.
Chemical Ion Flash Cards—
Super Value Game
By: Robert K. Weiss
Port Huron High School, Port Huron, MI
Flash cards have been used as a stimulating learning tool for years. Let’s use flash cards in chemistry! Your students will benefit from these colorful and compact flash cards which provide an easy and effective means for learning formulas, names, and charges of common ions through drilling and visual memorization techniques. Repetition of these cards will help students as they learn to write chemical formulas and reactions. Be creative with these cards—use them for drills, quiz- zes, reviews, games—you decide!
The front of each card has the name of a monatomic or polyatomic cation or anion and the back of the card gives the ion formula. The flash card set includes an instruction sheet which contains ample background information on ions and formulas as well as nine tips and suggested activities to help you get started. Each set contains six brightly colored, student-size 13⁄4" x 4 1⁄4" sets and one larger size 4 1⁄4" x 11" set of 50 chemical ion flash cards. Individual student-size sets of 50 cards are also available separately.
Super Value Game is complete for six student groups. All materials are reusable.
Chemical Formulas—Student Laboratory Kit AP4569
Molecules, Compounds and Formulas— Laboratory Kits
Catalog No.
Description
Price/Each
AP4569
Chemical Formulas—Student Laboratory Kit
$52.50
Chemical Ion Flash Cards—Super Value Game AP4574
MOLECULES, COMPOUNDS AND FORMULAS—LABORATORY KITS continued on next page.
Catalog No.
Description
Price/Each
AP4574
Chemical Ion Flash Cards—Super Value Game
$30.85
AP5941
Student Ion Flash Cards, Set of 50
3.85