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3.)

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1) A chemical reaction is when two substances break apart  and combine to create a new substance.
2) A exothermic reaction requires activation energy and energy is released and products have less energy than reactants. And  Exothermic has less energy then the reactants.
3.conservation of mass is the principle that states all equation must be balanced.
4. The baking soda combined with the vinegar and both compounds broke apart to create different substances.

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1.) A Chemical reaction is when two atoms/substances react together to make a product.
2.) An endothermic reaction is when energy is released and there is less energy in the product than there is in the reactant.
An I dot heroic reaction is when energy is absorbed and there is more energy in the product than there is in the reactant

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1) when 2 substances form a nuclear reaction
2) exothermic releases heat and endothermic absorbs heat
3)  when mass is never created or destroyed  and the numbers equal the same
4) it didn't support it because the data that I had was all wrong

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1.a chemical reaction is two elements that go together
2.exo releases energy and endo absorbs energy
3.the conversation of mass and balance is that nothing can be destroyed or created
4.there was bubble rising when we mix backing soda and vinegar
together ,it did rise that was our hypothesis and the outcome was right that bubble rises.

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1) A chemical reaction is two substance combine and make a new substance.
2)An endothermic reaction is when energy gets absorbed and exothermic is when energy is released.
3)Conservation of mass is when matter is never created or destroyed

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Jesus Cortes

1)A chemical reaction is when two substance break apart and combine to create a new substance.

2)An endothermic reaction is when energy gets absorbed and exothermic is when energy is released.

3)Conservation of mass is the principle that states all equations must be balance.

4)The baking soda combined with the vinegar and both compounds broke apart to create a new substance

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1.chemical reactions happens when two elements  combine to make a new substances
2.Exothermic releases energy while endothermic absorbs energy
3.The conservation of mass says mass can not be created nor destroyed
4.My data did support my hypothesis because i predicted once we put the vinegar inside the baking soda it would cause a reaction of bubbles

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1: A chemical reaction is two elements combine to make a substance.
2: Exothermic reactions release energies and Endothermic reaction absorbs energy.
3. The conservation mass says that mass can be destroyed and created.
4:The reactants were being broken and reconstructed to make a new product.

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1] Two elements .
2] Exothermia releases energy
endothermic absorbs energy

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1) A chemical reaction is when two substances break apart and combine to create new substance.
2)An exothermic reaction requires activation energy and energy is released and products have less energy than reactants.And endothermic reactions require energy and is absorbed and the products will get more energy.
3)A conservation and mass is something that can be created or destroyed.
4)The baking soda combined with the vinegar and both of the compounds broke apart to create different substances.

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1)A chemical Reaction is when two substances combine and break down to create a new substance.

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1) A Chemical reaction is when one chemical combines with another chemical and makes a different chemical i looked it up.
2) An exothermic vs an endothermic reaction exothermic releases heat and an endothermic reaction absorbs heat i looked it up.
3)the matter cannot be created or destroyed that means the chemical equation does not change i looked it up.
4)You can’t change one element into another in a chemical reaction Instead you create a new substance with chemical reactions i looked it up.

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A chemical reaction is when two substances combine and break down to create a new substance
2.An exothermic reaction is when energy is released and endothermic is when energy is absorbed               3.Conservation of mass is the idea that matter is never created and isn destroyed.They are balance.                                    4.The reactants on Monday´s lab was vinegar and baking soda combine.The product was carbon dioxide.My hypothesis was correct because i did this at home.

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1) A chemical reaction is two substance combine and make a new substance.
2)An exothermic reaction requires activation energy and energy is released and products have less energy than reactants. And endothermic reactions requires activation energy the energy is absorbed  and the products have more energy than reactants.
3) Conservation of mass is the principle that states all the equations that are balanced
4) My data did support our hypothesis because we said that once you add the backing soda and vinegar bubbles would accrue and that once you combine two different things they create a new ion.

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1) A chemical reaction is when two elements combine to make another substance.
2)An exothermic reaction is when it release energy. An endothermic reaction is when absorbs energy.
3) The conservation of mass states that mass can not be destroyed or created.
4) I did not do the experiment.

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Jesslyn Ramirez
1) A chemical reaction is when two substances combine and break down to create a new substance.
2) A exothermic is when energy is being released, and an endothermic reaction is when energy is being absorbed.
3) Conversation of mass is when the idea is never created or destroyed, this means equations must be balanced.
4) When the vinegar and baking soda were combined they created a new compound.

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Christian Sullivan
1)A chemical reaction is when two substances break apart and combine to create new substances
2)An endothermic reaction is when energy gets absorbed and an exothermic reaction is when energy is released.
3)Conservation of mass is when matter is never created or destroyed.
4)On mondays lab the vinegar combined with the baking soda and both broke apart to create new substances that were water, carbon dioxide, acetate, and sodium ion. We made a hypothesis of the more baking soda you add the bigger the bubble level would get and we were right. When we started with one tablespoon of baking soda the reaction was smaller then when we put 5 tablespoons of baking soda in the cup.

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Name: Glenda Sanchez

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1) A chemical reaction is when two substances combine together to for another substance.
2) An exothermic reaction is when it is releasing energy just like our stove, and endothermic is when something absorbs the energy just like an ice pack.
3) The connection they have is that matter cannot be created or destroyed.
4) The vinegar and baking soda both reacted to form a different substance which caused a chemical change in both of them, and caused bubbles to rise

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1) A chemical reaction is to substances combine together and then they make a new substance when they break part.
2 )exothermic  is a reaction that releases of heat ans endothermic is when it absorbs heat.
3)The connection is they both can not be separated or destroyed.
4)My hypothesis was right because when u add more vinegar to baking soda the bubbles rise a lot but when i add more baking soda to vinegar the baking soda is over lapping the vinegar and they make less bubbles.

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1.)A chemical reaction is the process by which atoms or groups of atoms are changed
2.)Exothermic has less energy then the reactants.Endothermic has more energy than the reactants.
3.)Conservation of mass is the principle that states all equations that must be balanced.
4.)In the lab when we mixed the vinegar and baking soda it had made bubbles.

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Lucy Gonzalez
1) A chemical reaction is atoms or groups of atoms changed in different substances.
2)Exothermic releases energy and Endothermic absorbs energy.
3)The Conservation of Mass can never be destroyed or created.
4)In the lab the reactants were broken down and then combined an made a new substance. My hypothesis was right because the data showed that it worked.

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Cesar Zavala

1. 2 or more substances get combined and then get breaked down to make a new substance.
2. Exothermic is when energy is released and Endothermic is when energy is taken in.
3. Conservation mass and balancing equations is when you have to balance both.

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Diego pelayo

1) a chemical reaction is when two changed into substance then create a new substance.
2) the exothermic is when energy is released and endothermic is when energy is absorbed.
3)matter is never created or destroyed so it has to balance.
4)on Monday the baking soda and the vinegar combined to make something new it did not go away it create more then two thing,yes it supported me hypothesis.

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1)  When 2 or more substances  form a nuclear reaction.
2) Exothermic releases heat and endothermic absorbs heat.
3)

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1.) A chemical reaction is when two or more substances combining to form a new substance.
2.) In an exothermic reaction, energy is released and products have less energy than reactants. In an endothermic reaction, energy is absorbed and products have more energy than reactants.
3.) Conservation of mass is the principle that states all equations must be balanced.
4.) The baking soda combined with the vinegar, and both compounds broke apart to create different substances: carbon dioxide, water, sodium ion, and acetate, causing the bubbles to rise. We predicted the more baking soda we added, the more the bubbles would rise, and that is what happened, based on the experiment because as we continued the experiment, gradually adding more and more baking soda, the inches we measured grew bigger, and at the end of the experiment were on a scale of 1.1 to 3 inches.

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Diego Rivera
1) A chemical reaction is when two substances combine and break down to create a new substance
2)An exothermic reaction is when energy is released and endothermic is when energy is absorbed
3)Conservation of mass is the idea that matter is never created nor destroyed. This means that equations must be balanced.
4)The reactants on Monday's lab were vinegar and baking soda. The product was carbon dioxide. My hypothesis was correct due to the fact that I did this experiment in 3rd grade.

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1) A chemical reaction is something when you mix two substances together and they combine, break down, then mix.
2) In an exothermic reaction is energy released and endothermic in when energy is absorbed
3) The conservation of mass is the idea that matter wasn't created or destroyed, If so the equations have to be balanced.
4)The chemical reaction was when the bubbles formed, we used baking soda and vinegar and we mixed the two together. My hypothesis was that it would bubble up, i was correct. I took a good guess on it.

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1) A chemical reaction is when atoms or a group of atoms are changed into different substances.
2) An exothermic reaction is when energy is released and a endothermic reaction is when energy is absorbed.
3) Conservation of mass is the idea that matter is never created nor destroyed which means that the equations must be balanced.
4) On Monday the lab's reactants were vinegar and baking soda. The product was carbon dioxide. My hypothesis was right because I remember doing this exact same thing for a science project in like 5th grade.

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Period ______
Name ___________________________

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Use your notes and assignments from Ch. 6 to do the following:
1. In your own words, explain what a chemical rxn is and how you know.
2. In your own words, describe an exothermic vs an endothermic reaction.
3. Explain the connection between conservation of mass and balancing equations.
4. Explain the chemical reaction in Monday's lab with regard to reactants and products, your hypothesis, and outcome; and how you knew whether or not your data supported your hypothesis.