|Pb(NO3)2 |Zinc itself turned glittery |the sliver of magnesium. | | | | |(+) the liquid looks |(+) There was also a black |(+) The copper almost looks |(+) the balls of lead turned| |AgNO3 |ash-like and the Zinc turned|spot that appeared on the |like fuzz grew on it |black and look fuzzy and | | |black and looks
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reactants will completely be ran out of‚ the reaction is done. So the limiting reactant is the key to start and finish the chemical reaction. B. Procedures and Materials In this Lab‚ we used different procedures and Materials. We had 12.53 gram of copper sulfate pentahydrate and
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A. Based on your observations make an activity series of the metals used. List them in such a way that the most active metal is on the left and the least active metal is on the right. Remember‚ sodium and copper are metals‚ too. B. Suppose you inserted a piece of copper into a solution of nickel chloride and observed no reaction. Then if you inserted a piece of iron into the solution of nickel chloride a nickel deposit formed on the bottom of the well in the well plate. Where does
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to be used as the essential outer material of the statue? Ancient Chinese‚ Greeks‚ and Romans found bronze to have a distinct advantage than other metals such as pure copper. As bronze being ninety percent copper and ten percent tin‚ the alloy had advantages such as: the difference in tensile strength bronze had compared to copper‚ and the low liquid melting point the alloy had in order to stay longer in this form for casting. The people during these times found many uses of this material‚ hence
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Corey 10/27/13 Periodic Table Lab Chemistry Purpose: Finding the general properties of elements through tests and then being able to organize the metals‚ nonmetals‚ and semimetals on the periodic table. The purpose of this lab was
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INVESTIGATION 12.A Target Skills Determining the reactivity of various metals Testing Relative Oxidizing and Reducing Strengths of Metal Atoms and Ions By observing whether reactions occur between solid metals and metal ions in solution‚ you can determine the order of oxidizing and reducing agents according to strength. Question How can the presence or absence of a reaction provide information about the relative strength of oxidizing and reducing agents? Safety Precautions
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alone. It is used for a solvent for metals and alloys a dehydrating agent‚ particularly in the determination of silica in iron and steel and in cement and other silicate materials. It is also used as a solvent for sulfide ores for the determination of copper and other metals‚ in the separation and determination of the alkali metals sodium and potassium. In the manufacture of anhydrous magnesium perchlorate‚ the best of the absorbents for water in analytical work. It is also a strong standard acid for
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consideration of my opinion. I would believe that Iceman ritually killed. I have many reason I believe this. One reason I believe that he was ritually killed was because of his power. Otzi was believed to be a head chief of a clan. He was found with a copper bladed axe‚ which represented power. Someone in his clan may of been jealous of Otzi and the power that he had. So the person thought if could kill Otzi he would gain his power. Another reason to support my idea that this was a ritual killing is
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Percent Mass of Copper in a Penny Introduction The purpose of this lab is to determine the percent mass of Cu in a penny and see if the fabricator that makes the planchets for the government is using the correct amounts of Cu in the pennies. The composition of a standard penny is 97.5% Zn and 2.5% Cu. In the lab we will be using Beer’s Law (A=elc+b where A is solution absorbance‚ e is a constant called molar absorbency‚ l is the length in cm‚ and c is the concentration). Using Beer’s Law in this
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Table 1: Counting Particles in common substances Unit Table 2: Counting Particles in common items Unit Zn (Zinc) 1.61 65.390 0.0246 Zn= 0.0246 #Zn= 1.481 x 1022 Analysis Questions: 1. For each table‚ which sample had the largest number of particles
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