“Cool reactions”

In the list of cool chemical reactions(http://listverse.com/2008/03/04/top-10-amazing-chemical-reactions/), not all react, but they are all indeed cool. here, i will discuss the reactions and what happened in them, while giving the balanced equations of the chemical reactions. 

Number 10 is a combustion reaction of sodium and water (2Na +H2O–>2NaOH + 2H) which is reflected in chlorine gas. to produce the light

Number 9 is a combustion reaction of magnesium in frozen CO2 (2Mg+CO2–>2MgO+C) 

Number 8 is a combustion reaction which produces oxygen using the gummy bear as catalyst. (6KClO3 + C6H12O6 –> 6KCl + 6H2O + 6CO2 + 3O2.

Number 7 is not a chemical reaction, it is simply a physical change due to temperature. no formula change occurs.

Number 6 is not a reaction because it is just the physical solution of a solute, no formula change, no chemical change.

Number 5 is not a reaction because it is just the absorption of water, and solution is not a chemical change.

Number 4 is not a reaction in anyway, it is simply the physical properties of a given substance being exhibited. 

Number 3 is not a reaction because it simply describes a state of helium, not any chemical change to it.

Number 2 is a chemical reaction (combustion) of thermite being burned (oxidized) and does not react with the liquid nitrogen, which is simply dispersed/gimp slapped in the video. The equation cannot be found without knowing what kind of thermite is involved in the reaction, but it was cool!

Number 1 is a chemical reaction evidenced by color change, but is actually 2 different redox reactions starting with 5H2O2 + 2IO3- + 2H+ –> I2 + 5O2 + 6H2O turning the solution blue then the second reaction 5H2O2 + I2 –> IO3 + 2H + 4H2O turns the solution back to clear. 

My favorite chemical reaction in the list is the perchlorate deterioration, the combustion is intense and it is used by astronauts in order to produce emergency oxygen.

3 questions 4/25

1. Recently, i have completed a lab on molarity of a base (NaOH)
2. Recently, i have learned the math and process of molarity. And how to apply it in chemistry.
3. Next, i plan on performing well in a school performance of alice and wonderland. And earn as much EC as possible in chemistry.

3 questions 4/18

1. Recently, i completed a group of puppets for a mayfield theatre production. As well as a set of notes over net ionic equations
2. Recently i learned how to find net ionic equations and about the different types of reactions in chemistry.
3. Next, i plan on putting on a great show for theatre and make up my lab (on monday as promised)

3 questions number 7

1. recently i completed unit 3 in chemistry, involving moles and stoich

2. i recently learned how to find percent composition using stoich

3. next, i plan to prepare myself for my senior year by signing up for a full load of classes 

3 questions number 6

1. Recently i completed a worksheet on stoichiometry in chemistry 

2. Recently i have learned the most architecturally sound way to build a chicken coop

3. i hope to soon begin preparations for the ACT and attempt to achieve a 31 composite score

 

Explore: Solutions

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A solution is a solid (solute) dissolved in a liquid (solvent), and there are several different kinds of solutions, including electrolytes (salt solution) and non-electrolytes (sugar solution). We could tell the difference between the two using an electric conductivity tester, the electrolytes conducted electricity in solution, the non-electrolytes did not conduct in solution, and the DI water didn’t conduct electricity. This is because the electrolyte is an ionic compound which has been separated into the ions. Which give the water charge, while the non electrolyte didn’t have any ionic bonds, therefore no ions and no charge. One can diagram salt solution as the Na+ with the O in water facing/surrounding it, while the Cl- holds the water with the hydrogen facing it. One can diagram the sugar solution with the particles simply surrounded by water, no polar reaction

Chemical Reactions

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Today, we performed many chemical reactions, with many different materials. my reaction was one of zinc and lead (II) nitrate, the balanced reaction for which was Zn + Pb(NO3)2 —> Pb + Zn(NO3)2. I could tell this was a chemical reaction because of the change in color, the production of gas as well as the production of a precipitant, my reaction held all 3 indicators. The reactions in each section were similar in the change in the reactants, and the products of a reaction, from 2 reactants to one product, and ect. for each section, one can create a model for the products and their quantities in a reaction, and use it to predict the products of a reaction. All because each type of reaction in a section yields similar products, because of the type of reaction that defines that section.

white powder and unknown liquid

In class, we experimented with amounts of powders and liquids and the amount of gas produced. we found that as we changed the amounts, we would see more gas produced (along the slope of the mass of powder over mass of gas in the balanced equation) up until a certain point. This change in production was brought about by limiting and excess reactants. limiting reactants are the reactants you control the amount of in an experiment, excess reactants are exactly that, excess. There is an unlimited amount of this reactant in the equations. The reactant in excess matters because you can use the amount taken by it to calculate many aspects of a reaction, including the amount of excess reactant.

white powder and clear liquid

white powder and clear liquid

the solids produce roughly 50-75% of their mass in the reaction. most reactions we attempted had similar reproductions of the mass change, but most chemical reactions would have different rates of change. there is indeed a molar relationship, with the balanced equation and molar masses, one can determine the amount of gas produced by certain amounts of solid. (line of best fit)