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Dr. Miriam Douglass
Dr. Martin McClinton
In this interactive object, learners determine the limiting reagent and the excess reagent in chemical reactions. Learners test their knowledge by solving three problems.
How Pressure Changes Boiling Temperature
By Terry Bartelt, Terry Fleischman
Learners study the effect that pressure has on boiling temperatures. Once a liquid has reached a full boil, additional heat does not raise the liquid’s temperature; however, pressure can vary the boiling point of a liquid. A brief quiz completes the activity.
Types of Elements in the Periodic Table and Their Properties
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Students review the positions of metals, metalloids, and nonmetals in the Periodic Table and the general characteristics of each. A quiz completes the object.
Learners examine how melting, vaporization, and sublimation require energy input while freezing and condensation release energy.
Peptide Bond Formation
By Richard Wilkosz
In this animated object, learners examine the formation of peptide bonds through dehydration synthesis.
why rinse filter paper which filtered copper(ii)susupernatant with distilled water
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