Speech Exercise 1b Online

The penny sample is next. Initaly three pennies were picked out, observed, weighed, and recorded. Then placed into the fune hood were three beakers with 25mL of 6M HNO_3 and one penny each. The reaction made by this process

3. Carefully felt the sides of the test tube and observed the resulted chemical reaction for about 30 seconds.

this experiment had a similar scenario to part A except the metals were switched and replaced with

c. Fill out the boxes within the “Concept Map” utilizing the information analyzed from the discussions in Units 1, 3, 5, & 7.

B. Claim about Reading 1 (state what is the claim that you will be making about your first reading.)

Conclusion – The main idea of this experiment is that if you have the reactants of a double replacement reaction that you should be able to find out several things. First, you can figure out the products from switching the positive ion with the other positive ion. Once you have found the products you can determine the phase of matter they are in from Table F and H. Finally, you can also determine whether the reaction went to completion or not. The observations and data above leads me to believe that our experiment is valid. We were very careful and observant of the directions that needed to be taken. Once source of error could have been that certain substances were placed in the wrong wells, causing your data to stray from the correct information. One way this experiment could be applied to a real life situation is he residue in the bottom of a glass in your bathroom. There is stuff dissolved in water, and any trace of water left in a glass will eventually evaporate and leave the residue.

Underline or highlight the key concepts, terms and instructions, by identifying these key elements it will allow you to focus on answering the question.

3.What was your prediction about the results of each factor tested in your two lab procedures? Explain your predictions based on your knowledge of the dissolving process, collision theory, and reaction rates.

Please note that this Assessment document has 3 pages and is made up of 3 Sections.

A 3. G 4. J 5. D 6. B 7.

5. ___G__ You go to a lecture and the topic seems to focus on blue-yellow and red-green perception of color. The lecture is likely discussing ______________.

Write a balanced chemical equation for each reaction #1-8. Classify each reaction using the information provided in the

5. Part B.1. Eliseo couldn't find the 6 M HCl and so used 6 M HNO3 for testing the metals instead. His logic? Both are strong acids. Explain how the results of the experiment would have been different.

through the duration of the entire experiment. Part 1 involves the synthesis of an iron (III) oxalate complex. The iron is first presented in its Fe2+ form, so it must first be oxidized to

2.1. Observation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4~5