Candle Reaction Lab

2. The color of the copper carbonate hydrate as it was heated can help identify the product?

1. 150 ml of boiled water was poured into each of the three beakers labeled A, B, C.

Alka-Seltzer is something that when it gets put into water it has a chemical reaction because it starts to bubble up and when it starts to bubble up the bubbles are carbon dioxide gas.

Mass is anything that takes up space. Mass is made up of small subatomic particles called atoms. Atoms have three main parts electrons, protons, and neutrons. The mass of the atom is found in the nucleus. The Law of Conservation of Mass states that mass cannot be created nor destroyed, and that the mass of the reactants will be equal to the mass of the products. This means that no matter what, the mass of the reactants when mixed together should be equal to their original masses. A chemical reaction changes one or more substances to be transformed into (a) new substance(s). A physical change is the change in somethings appearance. Chemical changes can be identified by its interaction with other substances.

When a candle burns, the wax disappears. When wood burns, the wood is reduced to ash to about ten percent of its

Have you ever wondered what happens when a gun fires? I have been hunting for almost all my life and I have started to wonder about this. For my science fair project I 'm going to find the reaction of explosions. I also find this interesting because I want to make guns someday. I believe that understanding the Chemistry and Physics of explosions may help me to find the answer to my question.

The state of Maryland is located on the East coast of the country. It is bored by Pennsylvania on the North side, Virginia, West Virginia and the District of Columbia on the Southwestern part, Delaware and the Atlantic Ocean on the Eastern part. Its total area is 12,407 square miles with 9,775 square miles for the land and 2,633 square miles for the water side. The US Census Bureau estimated that the total US population in 2014 was 318,857,056 among which, 5,976,407 people lived in Maryland.

This lab’s end result was to correctly identify each unknown solution using prior knowledge of chemical properties and the results of the first experiment conducted. Unknown solution D was the only colored solution, being blue while the others were clear. This made it easy to then match D up to Copper Sulfate because of its color. As unknown A and B were added together, lots of gaseous bubbles formed and revealed the fact that that reaction was the reaction between Hydrochloric Acid and Sodium Carbonate because it was the only reaction that produced a gas release. Unknown A and C produced the only yellow, brown precipitate just as the reaction between Sodium Carbonate and Silver Nitrate had previously. This led to the conclusion that A is Sodium

The purpose of this experiment was to analyze the effects of the variables: temperature, pH, and enzyme concentration, on the enzymatic reaction rate of catalase and the level at which its products are released, measuring the rate of absorption using the indicator solution guaiacol and a spectrophotometer to develop a hypothesis of the ideal conditions for these reactions. My hypothesis is that the extremes in concentration, temperature and pH will negatively affect the Au rate. This experiment used 11 solutions contained in cuvettes. Each cuvette, once mixed, is placed in spectrophotometer and then a reading taken every 20 seconds. Cuvettes 1, 8, and 10 are used as blanks to zero out the spectrophotometer. They all lack the enzyme to help determine the absorption of just the enzyme.

The question is, how does a physical or chemical change affect the mass of a substance within a closed system? To respond to this question, my group did a lab to determine whether or not the mass would change or not. Our lab was to have a plastic bag containing baking soda, then add a cup of vinegar and a block of clay to the mix. We made sure to weight every element separately and then add them up for our total mass of 31 grams before the reaction. During the reaction, as soon as the vinegar was poured in there was a gas produced, bubbles. We immediately knew it was a chemical change, then we added in the clay. The bag was very cold and the block of clay had gone from squishy to rock solid. After they were put together and the chemical reaction reduced and calmed down. One thing we did wrong was let out a little bit of air because the bag was not fully closed, in return, it messed up our weight. Our ending mass was 30 grams. We conducted our investigation this way because we wanted to easily find a way to prove that no mass can be created or destroyed in a reaction.

The lab started off by measuring critical materials for the lab: the mass of an an empty 100 mL beaker, mass of beaker and copper chloride together(52.30 g), and the mass of three iron nails(2.73 g). The goal of this experiment is to determine the number of moles of copper and iron that would be produced in the reaction of iron and copper(II) chloride, the ratio of moles of iron to moles of copper, and the percent yield of copper produced. 2.00 grams of copper(II) chloride was added in the beaker to mix with 15 mL of distilled water. Then, three dry nails are placed in the copper(II) chloride solution for approximately 25 minutes. The three nails have to be scraped clean by sandpaper to make the surface of the nail shiny; if the nails are not clean, then some unknown substances might accidentally mix into the reaction and cause variations of the result. This is important because the correct reaction would only appear if the right elements are mixed together, the unknown substances on the iron nails can cause a different reaction to happen that is not expected.

1. For the unknown light source, it had almost every color, so it might have been be mercury because they have similar color beams and their color from the naked eye appeared as purple, which mercury, a light blue, is very close to in terms of it's color from the naked eye. For the unknown flame crystals, it may NH4+ because the colors that appeared are very similar to the crystals.

If you are beginning a business selling candles because you simply love making them or you want to cash in on the American public's love of them during the fall and winter seasons, then be sure to make sure your candles meet all federal safety regulations. Once important way to comply with laws is to include the appropriate warning label on every candle you sell. This information not only helps keep consumers safe, but it helps protect you from potential lawsuits in the future if one of your candles is used inappropriately and starts a fire. Here is a guide to the labels you need to comply with US FTC guidelines.

This lab report discusses an experiment to study the difference in the burn rate of various colored candles. The objective of this experiment is to analyse the outcome of burning 5 different colored candles including white under the same control variable for 60 minutes. The white candles used in this experiment are pure and no chemicals or dyes are added to it. They are normally made from paraffin wax with a wick in the middle. Candles can also be made from soy wax, other plant wax or animal fat. Wax acts as a fuel to keep the candle burning. The wick has to be an absorbent twine with strong capillary ability. All candles used in this experiment are of the same height, size, shape and brand.

Chemistry is one thing that makes us understand and gives us reasons of why certain reactions gives certain results. In this experiment we will be illustrating the reaction between baking powder and vinegar and see what happens to the balloon that is attached to it. Hypothetically the reaction of the vinegar and baking powder will produce carbon dioxide which will inflate the balloon. If the more vinegar may happen that when more vinegar is added to the baking powder it may produce more carbon dioxide thus the balloons diameter increases. This reaction is an acid base reaction thus results expected to show some carbon dioxide.