Michelle+&+Daniel

 = = Aim: To find out what metal (zinc, aluminum, iron, magesium and copper) is most reactive.

Variable table:
 * Independent Variable || The 5 types metal powder || - There are 5 types of metal that will be used in the acid and each type has to be in each test tube and we will add in the Hydrochloric Acid. ||
 * Dependent Variable || Reactivity with the metal and Hydrochloric acid. || -We will take pictures of before and after the experiment, will also show the time next to it when we take the picture to show at what time this happen. ||
 * Constant Variable || # Amount of Hydrochloric Acid
 * 1) The amount of type of metal powder || -In all test tube there has to be 5ml of the Hydrocloric Acid

- We have to mesuare each solid has to have 0.5 grams. || Hypothesis : If we put the powdered aluminum, magnesium, copper, zinc and iron in the acid then magnesium willbe themost reactive, then the iron, then copper, then zinc and least will be aluminum becausethat is in what order they are in from the left to the right, and they are all in about the same row, which means that magnesium has the least number of valence electrons and aluminum has the most.



 Equipments list:
 * 5g of each solid
 * 5ml of Hydrochloric acid
 * 5 test tubes
 * Test tube rack
 * Spatula
 * 5 petri dishes (1 for each type of solid)
 * Stopwatch
 * Camera
 * Graduated cylinder

Method:

<span style="color: #eb0f0f; font-family: 'Comic Sans MS',cursive; font-size: 13.2pt;"> The Experiment diagram:
 * 1) Gather all materials needed onto a table safely.
 * 2) Take a picture of the solid alone before it is mixed with the acid.
 * 3) Put 5ml of the Hydrochloric acid in a test tube.
 * 4) Add 0.5g of the powdered iron to the acid in the test tube.
 * 5) Use a stopwatch to measure 10 minutes of when the iron is in the acid and see how much it reacts.
 * 6) Record your results by taking pictures of what is happening to the metal in the acid after 10 minutes.
 * 7) Repeat steps 2-6 with the aluminum, copper, magnesium and zinc.

<span style="color: #ff0000; font-family: 'Comic Sans MS',cursive; font-size: 120%;">Table showing effects of 5 different types of metals before and after being mixed with Hydrocloric Acid: - Some at the top some at the bottom and forms in a small shape - After some time most of it sinks down. || <span style="color: #eb0f0f; font-family: 'Comic Sans MS',cursive; font-size: 120%;"> || <span style="color: #eb0f0f; font-family: 'Comic Sans MS',cursive; font-size: 13.2pt;"> || - Bubble are on the surface always drizzling. - Its very hard to see the solid because its moving up and down fast at first. - The Acid measurement increased and the test tube was really hot at the bottom. - Some condensation was happening || <span style="color: #eb0f0f; font-family: 'Comic Sans MS',cursive; font-size: 120%;"> || || - Red/brown things are at the surface of the acid and around the test tube. || || <span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 108%;"> || <span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 108%;"> || Evaluation: One of the weaknesses is that some solid are very light and putting it in the solid and it might fly around and spill. <span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 108%;"> || I think we could <span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 108%;"> of use funnel that's to make everything neat and goes in the test tube. || I thought this was a fair test because we had calculate the amounts of solids we were going to use and the amount of acid will be in the test tube. Mostly we calculate the amount of everything before we did the experiment which makes everything organized and a fair test.
 * Copper || - It's not dissolving only staying on its shape
 * Magnesium || - Gas coming out.
 * Iron || - Bubbles are moving up and down, coming from the solid.
 * Zinc || - Acid turned into a color of gray and black then the solid was floating to the top and bottom making the solid harder in the top. || <span style="color: #eb0f0f; font-family: 'Comic Sans MS',cursive; font-size: 120%;">[[image:IMG_0454.JPG width="222" height="190"]] || [[image:IMG_0484.JPG width="164" height="242"]] ||
 * Aluminum || - The solid wouldn’t go into the Acid and wasn't dissolving, only stayed up above the surface of the acid. || [[image:IMG_0457.JPG width="212" height="226"]] || [[image:IMG_0483.JPG width="185" height="315"]]
 * Weaknesses || Improvement ||

<span style="color: #ff0000; font-family: 'Comic Sans MS',cursive; font-size: 120%;">Conclusion: The most reactive of the 5 metals was Magnesium, then the zinc, then iron, then the copper, and the least reactive metal was the aluminum. Most of our hypothesis was correct, the magnesium was the most reactive and aluminum was the least reactive, but the iron, zinc, and copper weren't in the order that we predicted. Some other published data support most of our results. According to the published data, from those 5 metals, magnesium is the most reactive, then aluminum, then iron, then copper, and last is zinc. The only two metals that are in the same place as in our results are magnesium and copper. This happened because metals are more reactive if there are more places for electrons from other atoms to be in and if there are more valence shells then some electrons are too far away from the neucleus for the electrons to stay on the shells, the charge isn't strong enough to hold it. //"The greater the ease with which an element loses its electrons and acquires a positive charge, the greater is its reactivity. Further, the greater the number of shells and lesser the number of valence electrons, the greater is the reactivity of the metal." (Author Unknown)//

<span style="color: #ff0000; font-family: 'Comic Sans MS',cursive; font-size: 120%;">Cited Sources: Unknown Author. "Reactions." //SciNet//. SciNet, n.d. Web. 17 Dec. 2009. [] Author Unknown. "The Reactivity Series of Metals." //TutorVista.com//. N.p., 2008. Web. 16 Dec. 2009. [] include component="comments" page="Michelle & Daniel" limit="20"