![]() ![]() The responding variable is a factor that is measured as result of the manipulated variable, and in this case it would be the chemical reactions between the metal strips and the solution. ![]() The sand paper can be included in this type of variable since it is being changed after we smooth the metal strips. The manipulated variable is the variable that is purposely changed, and in this case it would be the five different metals needed to react with the solutions. The controlled variable also includes the mass, and the temperature of the dilute solutions, and the well plate which it would be kept in. Variables The controlled variable is the variable that does not change throughout a test, and in this experiment it will be the amount of the five different dilute solutions, which is 0.1 mol/L. The most reactive to least reactive metal ions that would be used in this experiment are Mg2+, Zn2+, Fe2+, Sn2+, Cu2+. Hypothesis: I predict that the trend of reactivity of metal ions used in this experiment will decrease from top to bottom in a group, and will decrease from left to right across a period. Purpose: The purpose of this experiment is to find the trend of reactivity of metal ions. The reactivity series states that an element can only displace an element from a compound solution below it, and the farther apart two elements are, the more likely it is that the displacement reaction will occur quickly. This will also include the introduction of the reactivity series in which most reactions will have to be referred back to in order to find out which element displaces which in a compound. A single displacement reaction is a reaction in which an element displaces another element in a compound, producing a new element. Here, in this experiment we will have a look on single displacement reactions which includes reactions between metals and metal ions. We know that reactions are classified into many types, they are: synthesis reactions, decomposition reactions, single displacement reactions, and double displacement reactions. Vu Chemistry Introduction: Many reactions occur in our daily lives to benefit and improve our wellness and surroundings. An Activity Series of Ions Lab Report Shakil M, Horby L, Shaquile P, Fazal M April 11th 2012 Mr. ![]()
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