Exo Releases Endo Absorbs 4/30/17
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S&EP-Conducting Investigations:
You can tell that a chemical reaction occurred if gas was created, a change in temperature, and a change in color. There are times when a reaction occurs, but you cannot tell because the reaction is going at such a slow pace. This week in class we conducted an experiment to see an example of a catalyst in action and what it can do. In this experiment we combined copper 11 sulfate along with water and aluminum foil. When mixing you see no obvious reaction. After that, we added in salt. It began to bubble and changed in color. There was a temperature change, as well. Through this experiment I learned that a catalyst is something added to a reaction to either speed it up or slow it down. The catalyst is not included in the chemical equation because it does not change the reaction other than the speed.
XCC-Cause and Effect:
An exothermic is when the temperature increases due to how energy was released. In a exothermic reaction the reactants have more energy than the products. The change in energy is negative. The extra energy is given off in the form of heat into the surroundings, so the temperature is higher. Making new bonds gives out energy which means that it is an exothermic reaction. As for a endothermic the temperature dropped indicating that energy was absorbed. In an endothermic reaction the reactants have less energy than the products. The change in energy is positive. Energy is needed by the reaction, so the surroundings get colder. Breaking bonds require energy so it is an endothermic reaction. Exothermic and endothermic reactions are forms of a cause and effect relationship.
Multiplier:
This week I was a mutant, to be more specific a learner, because I asked the Dr. Popplebot's creators a question and asked my team questions when I was confused.
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Summary:
Atoms are the building blocks for everything in the world. Compounds are two or more atoms that combine to make something new. A chemical reaction is when atoms come together or break apart to form new things. The Law of Conservation and Mass states that atoms cannot be created or destroyed, only rearranged. Extra atoms after a chemical reaction become waste to be used in another reaction. Atom economy is the attempt to have as few atoms leftover from a reaction as possible. An experiment of burning sulfur proved that weight can transfer during a chemical reaction. During this experiment the burned sulfur weighed less than it did before, but the air around it weighed more.
S&EP-Conducting Investigations:
You can tell that a chemical reaction occurred if gas was created, a change in temperature, and a change in color. There are times when a reaction occurs, but you cannot tell because the reaction is going at such a slow pace. This week in class we conducted an experiment to see an example of a catalyst in action and what it can do. In this experiment we combined copper 11 sulfate along with water and aluminum foil. When mixing you see no obvious reaction. After that, we added in salt. It began to bubble and changed in color. There was a temperature change, as well. Through this experiment I learned that a catalyst is something added to a reaction to either speed it up or slow it down. The catalyst is not included in the chemical equation because it does not change the reaction other than the speed.
XCC-Cause and Effect:
An exothermic is when the temperature increases due to how energy was released. In a exothermic reaction the reactants have more energy than the products. The change in energy is negative. The extra energy is given off in the form of heat into the surroundings, so the temperature is higher. Making new bonds gives out energy which means that it is an exothermic reaction. As for a endothermic the temperature dropped indicating that energy was absorbed. In an endothermic reaction the reactants have less energy than the products. The change in energy is positive. Energy is needed by the reaction, so the surroundings get colder. Breaking bonds require energy so it is an endothermic reaction. Exothermic and endothermic reactions are forms of a cause and effect relationship.
Multiplier:
This week I was a mutant, to be more specific a learner, because I asked the Dr. Popplebot's creators a question and asked my team questions when I was confused.
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