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What is a chemical reaction? A chemical reactions is when one or more molecules come together and their bonds break and reform to make something new. A chemical equation is what we use to show what is happening in the chemical reaction (as shown above). When you read a chemical equation the + separates the two or more molecules either in the reactants side (the left side) or the product side ( the right side). The arrow shows which was the chemical reaction is going. So if the chemical reaction is reversible then the arrow will point in both directions, if the equation is not reversible then the arrow will point towards the product side of the chemical reaction. But what if the equation isn't balanced? If the equation is not balanced then you have to balance it because according to the law of conservation mass. The law of conservation mass states that matter can not be lost nor gained nor change its identity. To balance a chemical equation you must first draw a box around all of your reactants and products, for neither the elements nor the subscripts can be changed you can only add coefficients. Next you would take your inventory. This means you would count all of the atoms in the equation that you have at hand. You must keep your inventory updated, so do not use a pen that is not erasable. After this you would have to add coefficients in front of the boxes. Then you take inventory again. You must repeat this process until you have the same number of atoms on both sides. Though, sometimes the amount of coefficients you added can be simplified so you can divide the coefficients on both sides of the equation by the same number to simplify the amount of coefficients but be sure to take inventory after you do so to make sure that your answer is still correct.
SP5: Using Mathematics
We used mathematics to help us determine the amount of atoms in a equation. We had to multiply to figure out the number of atoms in a when we added a coefficient. We also had to do math when we figured out what how many coefficients we had to add to a certain element or molecule in the equation.
XCC
XCC: Energy and Matter
"Energy and Matter change forms but are not created nor destroyed". Energy and matter take place everywhere in chemical reactions and equations. Matter is a part of the Law of conservation mass. For the law of conservation of mass states that matter cannot be lost nor gained or switch identities during a chemical reaction.
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