Chemistry - Reactivity Serires report

Authors Avatar

Reactivity Series                Daniel Shih

Science Investigation Report                F5D        

Name: Daniel Shih

Form: 5D

Teacher: Dr. Aravind

School: Kiangsu-Chekiang College International Section

Date: 12th January 2007

Index

I

Introduction

Planning – Aims, Variables, Fair Test, Prediction, Hypothesis

Planning – Apparatus, Procedure, Measurement, Safety rules

Obtaining – Observation, Results Observation

Analyse – Table 1 and Table 2

Analyse – Table 3 and Table 4

Analyse – Table 5

Evaluation, Conclusion

Resources

Introduction:

What is the reactivity of metal?

The reactivity of metal was the rate of metal which it would be reacting with each others. The higher the reactivity was, they could have replaced the more other kind of metal in the metal solutions. The metal who has the highest reactivity now is Potassium (K).

What is metal?

        Metal is elements, there were more than 50 kinds of metals scientists have discovered today. The metal have different reactivity rate. Just like the Food Chain, higher reactivity metal can replace the lower reactivity metal when the reactions have occurs.

How the reactions can occurs?

        The reaction occurs when a metal have replaced the other kind of metal in a solution, as example, When Magnesium have be drop into a Iron Sulphate solution, reaction occurs. Magnesium will take over irons placed, and formed Magnesium Sulphate solution, and left with Iron crystal.

The Word equation will be:

        Magnesium + Iron Sulphate           Magnesium Sulphate + Iron

The Symbol equation will be:

        Mg + FeSO4               MgSO4 + Fe

What if both the metal and metal solution was the same?

When both metal and metal solution are the same, there would be no reaction occurs, because they have the same properties and the same reactivity Series.

How the temperature could helps on reaction?

        When the temperature were much higher, it would be reacting faster, the reason for this was that the molecules in the solution have gain energy from heat, so they move faster, therefore they will be reacting faster.

Planning:

Aims:

        In this experiment, I’m trying to prove that the higher reactivity metals in the metal solution will be able to replace the lower reactivity metal pieces. Also to prove the metal, magnesium, will have the highest reactivity out of the five different metals. Then I believe that after the experiment we should be able to learn which metal is reactive and be careful with them in the future time.

Variables:

  1. The metal pieces used in the experiment.
  2. The metal solutions used in the solution.

Control Variables:

  1. The measurement of metal solutions for the experiment.
  2. The temperature of the solutions in the experiment.
  3. Size of the metal pieces.

Fair Test:

        In this experiment, I would first make sure that the amount of the solution were equal, this must be measured by the measuring cylinder every time.

        Also I have to make sure all the same metal are in same shape and also same mass, this would also help the experiment to be more accurate.

        The next thing which have to be test before the experiment was the temperature, they temperature must remain in constant, such as all in room temperature, so the results could have be more accurate.

        Last, repeat the experiment for two more times to check the results.

Prediction:

        By setting everything well, I predicted that by putting the magnesium ribbon into the magnesium sulphate there would be no reaction occurs because that the metal and the metal solution are the same, but when the ribbon is put into the rest of the 4 kind of solution, it would be reacting with them and replaced the metal in the solution.  So I could proved that magnesium have the highest reactivity out of all.

Join now!

        Also, if the temperature of the metal solution were high, the reaction will occur faster than at room temperature.

Hypothesis:

        It is likely to be seen that because that “magnesium” metal, they are group one metal, and there’s only 1 electron in their outer shells, therefore they would be very reactive. According to Encyclopedia Website (1), I have discovered the reactivity series of the metal I used in the experiment, magnesium were the highest of all.

        Also, according to information in “New Chemistry for You, by Lawrie Ryan,” (2) I have notice that the higher the temperature, the reaction ...

This is a preview of the whole essay

Here's what a star student thought of this essay

Avatar

Incorrect use of grammar in places e.g. who instead of which in the first paragraph. Grammar okay most of the time, punctuation and spelling all accurate.

Layout of the report is well structured. The scientific explanations used whilst accurate are quite basic, and I would expect in the explanation of the science behind temperature and molecules perhaps the use of the terms kinetic energy, and collision theory with the minimum activation energy. Could perhaps consider controlling more variables and consider possible biases and improvements to the experiment. Could include ionic equations rather than full equations to increase the level of the piece of work. The conclusion is not very detailed, and could be more adequate for the piece of work.

Response to the question is well analysed and structured, however, the scientific terms used are quite basic, and to improve the level of the essay the candidate should explore improvements to the experiment, consider the conclusion more thoroughly, and improve the level of science behind the experiment.