Thursday, November 7, 2013

Chemical Properties and Reactions

There are many elements, each separated into their appropriate group and period. Groups, also known as families, are elements that have the same properties. Periods symbolize the element’s valence electrons. Going from right to left, the Alkali Metals are the most reactive, Noble gases being the least.
Each element has chemical properties when combined with another element or substance. A few are odor change, color change, temperature, and precipitate. An example of odor change is when iron and vinegar are mixed; it gives off a sulfur type scent.

Many different chemicals react differently to each other such as sodium and Chlorine. One is unstable will the other is toxic, yet when put together, they form NaCl which is table salt. Whenever cornstarch and water is combined it forms a substance called a Non-Newtonian fluid. A Non-Newtonian fluid is when the substance is in a liquid state as well as a solid state at the same time. ~ Dr. Professor Patrick

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