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__**Testing The Reactivity of Five Different Metals when Added to HCl (Hydrochloric Acid)**__

To test the reactivity of five different metals once added to HCl (Hydrochloric Acid). (Al, Zn, Cu, Mg, Fe) || We will use 5 different metals to add to the HCl acid. || If the element/metal is further to the left and far down on the periodic table then its level of reactivity will be higher because it has more electron levels and an unstable outer valence shell.
 * Aim of the Experiment**:
 * Variables:**
 * **Variable** || **What** || **How ?** ||
 * **Independent Variable** || Type of metal
 * **Dependant Variable** || Reactivity of each metal || We will add each metal to Hydrochloric acid and will observe the results. ||
 * **Controlled** || ## Same amount of each metal (0.5 G)
 * 1) Same amount of HCl (5 ml)
 * 2) Same person conducting the experiments
 * 3) Same person recording the results || ## We will use a scale to measure the same amounts of each metal.
 * 4) We will use the markings on the test tube to measure the same amount of HCl.
 * 5) We will use the same person t conduct the experiment and the same person to record the results. ||
 * Hypothesis:**


 * Equipment and Materials:**
 * 5 Test Tubes
 * 0.5 Grams of Zn, Cu, Al, Mg, and Fe
 * 25 ml of HCl
 * One Pipette
 * One Graduated Cylinder
 * 5 Petri Dishes
 * One Test Tube Rack
 * One Set of Scales
 * 5 Thermometers

**Diagram of Apparatus:**
 * Method:**
 * 1) First, get your metal in powder form and weigh them out (make sure that each one is 0.5 Grams).
 * 2) Once weighed, add the metal to a test tube.
 * 3) Then add 5 ml of HCl to the test tube and observe
 * 4) Record your results
 * 5) Repeat these steps for each metal.


 * Observations Table:**

|| 37 degrees ||
 * __Observations of what happens once HCl is added to each metal:__**
 * **Metals ( Power form)** || **Amount (grams)** || **Acid (ml)** || **Reaction when Acid is Added** || **Temperature** ||
 * 1. Aluminum (Al) || 0.5 || 5 || * The Aluminum has clumped to the walls of the test tube and the thermometer. Also, it has clumped at the surface of the liquid.  || 26 degrees ||
 * 2. Zinc ( Zn) || 0.5 || 5 || * There are some bubbles, the metal has also clumped to the walls of the test tube and the thermometer. || 26 degrees ||
 * 3. Magnesium (Mg) || 0.5 || 5 || * A lot of bubbles
 * White bubbles
 * 4. Iron (Fe) || 0.5 || 5 || * Bubbles || 24 degrees ||
 * 5. Copper (Cu) || 0.5 || 5 || * Doesn't react at all  || 26 degrees ||

1. After the experiment, the reactivity of the metals are different and this was the order of the reactivity from highest to lowest : Magnesium, Zinc, Aluminum, Copper and lowest is Iron. 2. The metal that we tested was magnesium, it is far to the left on the periodic table and its temperature is the highest. So the hypothesis is wrong, the metal that has least number of electron levels and least number of outer valance shells was the one that has the biggest reactivity. 3. Many tests that been done before us had found that Magnesium is the most reactive metal, where Aluminum was predicted to have highest reactivity because it’s near to the right which has more levels of electron.
 * J: Conclusion**

1. During the experiment, there were a few problems. When the metals were added to the test tube, there were not enough space for the metals to go in and some of them went down the floor. And the spoon also couldn’t get all the metals from the Petri dish. When choosing the type of metals, the group chooses the metals in dust state so there might difference when testing with the whole pieces of metals 2. The method is quite short, but it has enough details to make the experiment reliable.
 * K. Evaluation**:

This is not a fair test because many things were not even, for example the amount of metals that been put in the test tube is not equal. we also didn't count the minutes or the time that we record the temperature, the temperature could rise or decrease.
 * Weakness || Improvements ||
 * The solids that been added to the test tube were not the same because some of it went out when added and some are still in the Petri dish. || We can use round fold paper and use it to add the test tube ||
 * The time between the adding of the acid were not at the same time || We would have to put the acid in some way that they go in at the same time. ||

Works Cited: "Chemistry planning and designing lab :: essays research papers." //Free Essays, Term Papers, Research Paper, and Book Report//. Web. 16 Dec. 2009. . "Magnesium -." //Wikipedia, the free encyclopedia//. Web. 16 Dec. 2009. .