Page 85 - Career Readiness Catalog

CHEMISTRY

DETERMINATION OF
CHEMICAL FORMULAS
Kit #85
Relating chemical formulas to actual substances can often be a
confusing and difficult challenge for students. In this kit, abstract
theories are made concrete, as students learn to predict the
formula of a compound based on the compound’s reaction to
different solutions .
Students use a chemical analysis method to determine percent
composition and molecular weight of a molecular substance .
For ionic substances, students will determine the relative number
of each of the ions in substance’s composition .
Accommodates three classes, each with 12 groups of two students.
Kit No. 85 $91.55
Eng./Spn. Kit No. 85-BL $93.75 STEM SPANISH
Refill Kit No. 85-RC $49.75 REFILLABLE

INVESTIGATING THE CHEMISTRY
OF CORROSION

Kit #86S — Developed by SEPUP
This is a two-part investigation into the chemical concepts that
underlie corrosion and our attempts to inhibit it . In the laboratory
portion of this activity, students investigate the corrosion of iron,
steel, aluminum, and zinc metal. They investigate the impact of
factors such as salinity, coatings, and contact with other metals on
rust and corrosion . Students also complete a reading that describes
some conditions that affect the rate of corrosion of iron and steel
and several chemical principles associated with these conditions .
The activity concludes with a discussion of the impact of corrosion
on materials and the environment .
Accommodates up to four classes, each with 6 groups of four students.
Kit No. 86S $123.15 STEM LITERACY
Add a Group No. 86SEL $22.60
REFILLABLE ADD A GROUP

CHANGING OF EQUILIBRIUM
(LE CHATELIER’S PRINCIPLE)
Kit #87
In this series of activities, students put Le Chatelier’s Principle
to the test . They learn the four important factors that can
disturb the equilibrium of a chemical reaction: concentration,
pressure, temperature, and light . Your students will discover
that chemical reactions do not always go to completion and
that all are somewhat reversible . Students encourage one
of two simultaneous chemical reactions which cause the
equilibrium of the mixture to change .
Accommodates three classes, each with 12 groups of two students.
Kit No. 87 $92.10
Eng./Spn. Kit No. 87-BL $94.25 LITERACY
Refill Kit No. 87-RC $47.40 SPANISH REFILLABLE

For discounted pricing visit the “Your State” page on lab-aids.com to contact your Curriculum Sales Specialist. 83