Thursday, February 28, 2013

Intro Pn

 
My research lab report will be talk virtually the preservation of crowd and Chemical Reaction.
 Introduction:
 
             First, I count you could have a question. What is the Law of conservation of sight? How to expose the Law?  How to use the Law? Who develop the truth? What is this to yoke to our really life? What is the lab to describe the Law? How be the virtue effects?
            Ok, let me start to answer the question. The point that matter is non created or destroyed in whatever chemical or physical change is called the law of conservation of mass. In another way, the matter of the things before change is correspond to the matter of the things after change. For example, if you matter your weight after you eat, it must be the matter of your body before you eat supply the matter of food. And also, it tin use for the shove alonges. In the 1770s, a french Chemist, Antoine Lavoisier, carried out experiments in which he made accurate measurements of mass both before and after a chemical change. This law is always use for the chemical and physical changes or lab. It can describe why the mass is not lost. No mass not lost because during a chemical change, atoms are not lost or gained, only rearranged. Sometimes, in our life, when we see the report burned, the paper was disappeared. However, we just can not see the gas carbon dioxide.

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It was gone. This law affects the chemical and physical reaction and the lab for the scientists. In our lab, we used the double-replacement reaction for our lab because it was easy to commence the products, and also, for the reaction, there were no gas out because there were not easy to collect. We had products that were immiscible, so we can mass the matter. It proofed the law by easy way, and clearly. It was an interesting lab, you may interest on that.
Hypothesis /Predicition:
    
             Before the lab, we wrote the hypothesis. I think the mass was not change during a chemical reaction. I thought that because when you give orange juice with apple...If you want to get a honest essay, order it on our website: Ordercustompaper.com



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