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Choose any of the 4 chemical reactions below. Share what you see.

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The left side of the reaction contains the reactants. The right side contains the products. Both sides of the reaction must be balanced. Each reaction can move both ways, to the left or to the side. When the rate of the reaction is equivalent to the rate of the reverse reaction, the system is at equilibrium. Each reaction is either exergonic or endergonic, depending on its change in free energy, which can be calculated with the change entropy and enthalpy. All reactions have an activation energy, which can be lowered by utilizing catalysts. There are many times of reactions such as substitution reactions, etc.

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Chemical reactions form a new substance.

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A chemical reaction is when two or more chemicals intreact or react with each other to create a substance.

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A chemical reaction is when two or more chemicals interact/react with eachother. The end result of the reaction can be seen on the right side of all of the figures, which should be another chemical.

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Chemical reaction is the reaction when atoms bond to each other. The left side of the periodic table are reactive elements, the right side are non reactive elements.

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A chemical reaction is when two or more atoms re at towards each other in order to become stable. The left side has the reactive elements and the right side has the non reactive.

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They can explode  and it is the reaction when the atoms bond together

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a Reaction that occurs when atoms bond and creates substances

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Chemical reactions occur in bonded atoms (compound) and change the properties of the atoms.

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The right side of the reaction contains the result of the reactants chemically reacting. Molecules react with other molecules to form new molecules.

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Chemical reactions happen between two or more atoms.

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A chemical reaction changes the properties of both atoms.

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Chemical Reactions is when a molecules structure is rearranged.

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I know chemical reactions happen for the purpose of making an atom stable, or to get eight valence electrons. Noble Gas have eight valence electrons, so they are quite stable. Thus, they do not usually react with other elements.

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A chemical reaction is when a new substance is formed through the exposure of 2 or more elements. They bond to complete each other, but end up creating a new substance made of the same elements.
Chemical reactions occur most with elements on the left side of the periodic table because they have the least # of valance electrons and tend to react with other elements more frequently and aggressively

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Chemical reactions occur in order to stabilize the atom by filling the atoms valence ring so that it’s full.

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A chemical reaction is a process where two substances react with each other to form a completely new substance

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One result of chemical reactions are chemical bonds which is when 2 or more atoms are chemically bonded together.

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Chemical reactions happen when two substances cause a reaction when they are bonded or put together.

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A chemical reaction is when the valence electrons interact with another atoms valence electrons

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A chemical reaction is when two substances react with each other so that the arrangement of atoms in the substance changes.

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The left side is made of reactants which is what starts off before the chemical reaction. The right side is the products which is what is made when they react.

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Stephanie Z

A chemical reaction is the effect of when two atoms come together to form a new substance.

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How does the rearrangement of the atom should affect the substance?

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Why do chemical reactions happen?

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What determines how reactive the chemical reaction is

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What affects the result of a chemical reaction?

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Why do chemical reactions have to happen in order for atoms to bond?

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What happens inside the atoms when explosive chemical reactions occur?

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What are some of the common chemical reactions? Why do atoms react violently sometimes?

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What causes different atoms to be able to bond?

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What happenes when radioactive atoms bond?

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What types of chemicals reactions are there?

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A chemical reaction is when two substances react with each other to form a new substance.

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What kind of reactions occur?

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What needs to be there for a chemical reaction to happen?

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Does a chemical reaction change the substances properties?

- the chemical properties of the new substances are different from those of the original substances.

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How much energy does it take to have a chemical reaction?

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How does a chemicals properties affect the reaction which it creates?

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Why are some elements more violent when they have chemical reactions (ex. Alkaline Metals and Water)?

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How do chemical reactions occur?
Answer: A chemical happens when substncesa break apart or combine to form one or more new substances. New substances form when bonds break and new bonds form.

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B, all the atoms bonded together and the blue ones are in the center

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What kind of atoms are necessary in order for there to be a chemical reaction?

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What are the different types of chemical reactions?

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C. Two molecules react with each other. The result is two new substances with slightly different molecular arrangments.

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In picture B it shows how two atoms are combined to create a new type of substance.

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The two substances to the left are reacting and creating a chemical reaction. They are forming the substances on the right.(A)

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b. Here we can see two different banded together to create a whole new one.

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B.The atoms are bonding to form molecules

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How does a catalyst actually lower the activation energy of a reaction?

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B: Two molecules chemically react to make another molecule which is both of the reactants connected to each other

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B - two atoms combine to make a new substance that have both atoms in it

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B, The two different type of atoms bond covalently . They share their valence electrons with each other.

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Why do chemical reactions occur

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In picture B, two blue atoms and two white ones bonded to create a molecule with one blue atom and three white ones.

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D, not all of the atoms from the originals elements are there, one red colored atom and a small white colored atom are missing in the end result of the bonding.

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Why do chemical reactions occur?

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B. Two molecules reaction to make one molecule that includes the reactants.

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A. The ethylene molecule is reacting with the oxygen gas, forming water and carbon dioxide. This reaction seems similar to the common cellular respiration reaction, except the glucose is replaced with the ethylene molecule.
Balanced Reaction:
C2H4 + 3(O2) -> 2(CO2) + 2(H2O)

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B. The atoms on the left bond to create a new substance on the right

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B. The atoms bonded and created a new substance.

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b. Two different kinds of atoms are combined to create a molecule

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In picture A, the substances are bonding. But they are also creating new substances that have the same elements, but have different # of elements than the original compounds

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B: All of the atoms bonded together to form a new substance

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B. 4 molecules (blue & white) bonded together to form an even larger molecule.

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What deter

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A- The atoms are rearranged in a different order. Now the new atoms seem to have different properties.

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After reading and annotating, you have the following options.
1) Answer the question you asked if the answer was in the reading
2) Write down something you learned from the reading below.
3) If your initial thinking under "think you know" is incorrect, fix it!
4) Re-explain the visual prompt with your understanding of the reading.

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What kind of chemical bonds are there?
There are Exothermic which releases energy to its surrounding but Endothermic gains energy from its surroundings

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Exothermic: releases energy into surroundings
Endothermic : gains energy form surroundings

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My initial question was : Is energy always released in chemical bonds?
My answer now, after reading if that energy is only released in exothermic reactions, but in endothermic reactions, energy is taken in from the surroundings, not released.

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A chemical reaction happens when substances break apart or combine toform  one or more new substances. There is an exothermic reaction, where a reaction that gives off energy, and the endothermic reaction where a reaction takes energy. When writing the chemical formula it is important to check to make sure that it is correct. If something tiny is wrong, it could create a big difference to the chemical reaction.

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Exothermic reactions is when reactions give off energy, and endothermic reactions are when reactions take in energy

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Exothermic reactions occur when energy is released into its surroundings and endothermic reactions occur when energy is taken in from surroundings.

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In the “K” part of the KWL I wrote that chemical reactions happen between two or more atoms. To add in to that, chemical reactions can happen when they bond or break apart because of the energy released.

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I learnt that the total mass of the reactants and the total mass of the product(s) are equal

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2. Exothermic reactions are reactions that give off energy, exo meaning out and Thermic meaning energy. An example would be wood burning, as it produces fire, which is heat and light. Endothermic reactions are reactions that take in energy, endo meaning in, and an example would be photosynthesis. During photosynthesis, the plant takes in sunlight(light energy).

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1) Endothermic reactions absorb energy
2) Exothermic reactions give off energy

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A chemical reaction is when chemical bonds break apart and atoms rearrange themselves in order to create new substances. Nonmetals give off large amounts of energy during chemical reactions, and they can produce light, heat, and sound.

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Why does a chemical reaction between elements change the properties of the resulting substance?

When a chemical reaction occurs, the atoms in different bonds rearrange themselves and create a bond with more atoms. So, the new product(s) has more atoms of different elements, and is thus a completely different compound and substance.

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b.)
The blue molecule (which has two blue atoms)  combines with the white molecule (which has two white atoms) and produces a new molecule which contains two blue atoms and two white atoms. The blue and white molecules are reactants in a chemical reaction which leaves us a with a product that is a blue and white molecule.

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A precipitate is a solid that is created from the chemical reaction of liquids. An exothermic reaction releases energy and an endothermic reaction takes in energy from its surroundings. The law of conservation of energy is the idea that energy can't be created or destroyed, instead, it changes forms. The law of conservation of mass states that during chemical reactions, mass can't be created ir destroyed.