https://padlet.com/saragoldstone2023/xmmmystlwqrz By Sara Goldstone en-us 2019-02-14 18:00:18 UTC 2019-02-22 19:06:06 UTC hello@padlet.com saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441722 Baking Soda and Vinegar]]> 2019-02-14 18:08:43 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441722 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441790 Sulfuric Acid and Sugar]]> 2019-02-14 18:08:48 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441790 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441806 Sodium Hydroxide and Phenolphthalein ]]> 2019-02-14 18:08:50 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441806 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441832 Hydrogen and Oxygen]]> 2019-02-14 18:08:52 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441832 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441848 Silver Nitrate and Sodium Chloride]]> 2019-02-14 18:08:53 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441848 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441866 Iron and Sulfur]]> 2019-02-14 18:08:56 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331441866 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442036 NaHCO3 + CH3COOH → CO2 + H2O + CH3COONa]]> 2019-02-14 18:09:13 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442036 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442080 C12H22O1 + H2SO4→12 C + 11 H2O]]> 2019-02-14 18:09:17 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442080 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442092 C20H14O4 + 2 NaOH→2 C20H12O4 + 2 Na+ + 2H2O]]> 2019-02-14 18:09:18 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442092 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442109 2 H2 + O2→2H2O]]> 2019-02-14 18:09:20 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442109 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442117 NaCl + AgNO3→AgCl + NaNO3]]> 2019-02-14 18:09:21 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442117 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442140 Fe + S→FeS]]> 2019-02-14 18:09:23 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331442140 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443220 Reactants:
Baking Soda - NaHCO3
Vinegar - CH3COOH

Products:
Carbon Dioxide - CO2
Water - H2O
Sodium Acetate - CH3COONa]]> 2019-02-14 18:10:58 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443220 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443350 Reactants:
Sugar - C12H22O1
Sulfuric Acid - H2SO4]]> 2019-02-14 18:11:09 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443350 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443378 Reactants:
Sodium Hydroxide - NaOH
Phenolphthalein - C20H14O4

Products:
C20H12O4
Sodium - Na+
Water - H2O]]> 2019-02-14 18:11:10 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443378 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443390 Reactants:
Molecular hydrogen - H2
Oxygen - O

Products:
Water - H2O]]> 2019-02-14 18:11:12 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443390 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443403 Reactants:
Sodium Chloride - NaCl
Silver Nitrate - AgNO3 

Products:
Silver Chloride - AgCl
Sodium Nitrate - NaNO3]]> 2019-02-14 18:11:14 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443403 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443435 Reactants:
Iron: Fe
Sulfur: S

Products:
Iron Sulfride: FeS]]> 2019-02-14 18:11:16 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443435 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443507 Baking soda and vinegar react chemically because one is a base and the other is an acid. Baking soda is a compound called sodium bicarbonate. Vinegar contains acetic acid. The baking soda and vinegar reaction is actually two separate reactions. The first reaction is the acid-base reaction. When vinegar and baking soda are first mixed together, hydrogen ions in the vinegar react with the sodium and bicarbonate ions in the baking soda. The result of this initial reaction results in carbonic acid and sodium acetate. The second reaction is a decomposition reaction. The carbonic acid formed as a result of the first reaction immediately begins to decompose into water and carbon dioxide gas. Just like carbon dioxide bubbles in a carbonated drink, the carbon dioxide (that formed as the carbonic acid decomposed) rises to the top of the mixture. This creates the bubbles and foam you see when you mix baking soda and vinegar. ]]> 2019-02-14 18:11:23 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443507 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443543 The sulfuric acid removes water from the sugar in a highly exothermic reaction, releasing heat, steam, and sulfur oxide fumes.The white sugar turns into a black carbonized tube that pushes itself out of the beaker.  The reaction has a lot of smell to it when it occurs. ]]> 2019-02-14 18:11:26 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443543 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443557  Phenolphthalein is colorless in acidic solutions and turns pink in alkaline solutions. Sodium hydroxide is a base, so when you add phenolphthalein, the solution turns pink. This color change is a result of ionization, which alters the shape and charge of phenolphthalein molecules. Ionized molecules attract other molecules with the opposite charge and repel those with the same charge. With phenolphthalein, this also affects the molecule’s shape. The combination of shape and electric charge determine how a molecule responds to light. Normally, phenolphthalein is clear because all colors of light pass through it. When exposed to alkaline solutions, it begins to block the blue colors, which turns the light pinkish. The stronger the alkaline solution is, the more the phenolphthalein molecule changes and the darker the pink hue will be. ]]> 2019-02-14 18:11:28 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443557 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443579 Merely mixing the two gases together at room temperature won't do anything, just like hydrogen and oxygen molecules in air don't spontaneously form water. Energy must be supplied to break the covalent bonds that hold H2 and O2 molecules together. This is why you add a spark to do the reaction. The hydrogen cations and oxygen anions are then free to react with each other when you add the spark, which they do because of their electronegativity differences. When the chemical bonds re-form to make water, additional energy is released, which forms the reaction. This reaction is exothermic. ]]> 2019-02-14 18:11:29 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443579 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443601 AgCl is not soluble in water which is why it precipitates out as a solid to make the mixture look like cloudy white milk. In other words, when the soluble salts silver nitrate and sodium chloride are mixed, insoluble silver chloride forms and precipitates out. ]]> 2019-02-14 18:11:31 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443601 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443627 The atoms of iron and sulfur are rearranged to form iron sulfide in the chemical reaction. Iron sulfide, the compound formed in the reaction, has different properties to the elements from what it is made. ]]> 2019-02-14 18:11:33 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443627 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443934 Fizz]]> 2019-02-14 18:12:00 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331443934 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444026 Aroma]]> 2019-02-14 18:12:11 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444026 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444088 Color]]> 2019-02-14 18:12:16 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444088 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444149 Temperature]]> 2019-02-14 18:12:21 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444149 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444263 Solid (precipitate)]]> 2019-02-14 18:12:31 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444263 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444363 new Substance]]> 2019-02-14 18:12:39 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/331444363 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994625 F stands for fizz. Fizz is an indication of a chemical reaction because it most likely means that a gas was formed, which is a new substance. In this reaction, the fizz was carbon dioxide or CO2 forming. Since a new substance has formed, it is a new chemical reacton. ]]> 2019-02-20 01:07:08 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994625 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994962 This relates to FACTSS because the reaction has caused an aroma. This smell is an indication of a new substance forming. In this example, carbon and water formed because of the reaction. That makes it a chemical reaction because a new substance has formed. ]]> 2019-02-20 01:08:56 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994962 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994972 This relates to FACTSS because it is a change of color. A change of color is an indication of a chemical change because a new substance has been formed. ]]> 2019-02-20 01:08:59 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994972 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994979 This relates to FACTSS because the t stands for temperature. This is because a temperature change is a major indication of a chemical reaction. When the temperature changes in this experiment, it causes the reaction to occur and ends up making water. ]]> 2019-02-20 01:09:00 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994979 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994994 This relates to FACTSS because it has precipitated and has formed into a solid. This indicates a chemical change because new substance has been formed (the solid). ]]> 2019-02-20 01:09:03 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994994 saragoldstone2023 https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994999 This relates to FACTSS because in this reaction a new substance has formed which indicates a chemical reaction. Since it has formed Iron sulfide, it is a chemical reaction.]]> 2019-02-20 01:09:06 UTC https://padlet.com/saragoldstone2023/xmmmystlwqrz/wish/332994999