Science - Chemistry
Students will understand the properties that describe solutions in terms of concentration, solutes, solvents, and the behavior of acids and bases.
Describe factors affecting the process of dissolving and evaluate the effects that changes in concentration have on solutions.
A Modern Day Con Game
Students read a description of an attempted forgery that was solved using a silver chloride precipitation reaction. They will write the chemical equations for the reactions and make an illustration for the reading selection.
Students will increase the concentration of salt in a solution and note when the solution goes from dilute to concentrated to saturated.
Students will use the terms solute and solvent in describing a solution. They will sketch a solution at the particle level and design and conduct an experiment to determine the factors (e.g., agitation, particle size, temperature) affecting the relative rate of dissolution.
Students will follow a set of directions that lead to the "oscillating clock" reaction. They will need to do careful molarity calculations and measurements for it to work correctly.
Students will discover how the percent concentration for solutions is widely used in foods and medicines.
Students will accurately prepare two solutions and use them to perform a Briggs-Raucher (starch-iodine) reaction
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