Exothermic Reactions Lab

We were asked to correctly communicate these findings as we tested each of the substances she had encountered with both water and hexane. In experiment number three, The Relationship Between the Volume of a Gas and the Temperature, we where given a list of materials and asked to come up with our own procedure, which we did using zip lock bags filled with air, and submerged fully in a measured amount of water in order to find the volume, and then the change in volume when the temperature of the water was increased. In the fourth experiment we were asked to find the temperature of heated water, based on the cold and warm water. The experiment also required that each section be preformed several times in order to ensure accuracy, and also asked that the experimental responsibilities be split up between lab partners, each doing a section of the testing. This gave us an opportunity to work together with our fellow lab partners, with no one person doing the bulk of the work.

The Elkhorn Coral Mystery" How did scientist solve the Elkhorn Coral mystery by using the scientific method? They solved the mystery by using the step Observing. The second step that was used was conducting experiments. Finally, the last step used in this mystery was sharing their findings. These Scientific Method steps helped solve the Elkhorn Coral mystery.

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.

After one such experiment with a particularly good reaction, Quentin says, "I think we've got our next rocket propellant,"(224). The Rocket Boys had reached the maximum results they were going to get from their old propellant, so they needed a new one. This experiment features lots of gas and smoke, which are two things that help drive a rocket, so it can be inferred that this new rocket propellant will make a good propellant. A better propellant will help them reach higher altitudes, which were

Gunpowder is made up of saltpeter- a common name for the oxidizing agent potassium nitrate- sulfur and charcoal (Heather Whipps, 2008). When the Chinese scientists first mixed the ingredients together it resulted in smoke and flames, causing their hands and faces to burn (Heather Whipps, 2008). One of the first

Introduction The intent of this experiment is to understand how hot and cold water interact with each other by combining clear hot water and black ice cold water. I hope to learn more about how hot and cold water interact with each other. As of now, I know that cold water is denser than hot water. Knowing this I formed my hypothesis.

What is Research? It is a careful investigation of a problem in a scientific manner, especially to search for new facts in any side of knowledge. And it is searching for theory or opinion for testing them or for solving issues. And a scientific way for answering questions and testing hypotheses.

They bubble in water releasing the gas, but do not react in cooking oil because there is no carbon dioxide. They react best in whatever substance has the most carbon dioxide. That is why it reacts well in water, and soda. You can also do another experiment with Pop Rocks.

Then the scientist will observe the different rates of reaction with temperature. The Boltzmann distribution of law, indicates that high temperature makes molecules gain high energy contents (pubs.acs.org/doi/abs/10.1021/ja). In order to measure the reaction rate, the scientists must use the same volume of water at three different starting temperatures: hot tap

Introduction: The purpose of this experiment is to demonstrate the different types of chemical reactions, those including Copper. There are different types of chemical reactions. A double displacement reaction is a chemical process involving the exchange of bonds between two reacting chemical species. A a decomposition reaction is the separation of a chemical compound into elements or simpler compounds and the single-displacement reaction is a type of

The Problem: How does temperature affect the dissolving time of an antacid tablet? Antacid tablets are medicines that help neutralize the acid in your stomach. Antacid tablets are made of numerous numbers of components, such as sodium bicarbonate (baking powder), magnesium hydroxide, critic acid, and many others. When Antacid tablets are placed in water, they undergo a chemical reaction, where the sodium bicarbonate breaks apart to make sodium and bicarbonate ions. When the bicarbonate ions collide with hydrogen ions, it produces carbonic acid.

Title: THE BALLOON INFLATION REACTION Introduction: 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.

Introduction The purpose of this experiment is to determine the standard heat of formation of naphthalene (figure 1) from its enthalpy of combustion. Standard heat of formation is the energy required for forming one mole of substance from its elements at standard conditions. In this experiment,

To exceed the understanding of the research they have gathered, they inspect the observations taken from data collected. Once they have enough information to continue to move forward they test for any patterns

Enthalpy of neutralization The purpose of this experiment is to determine the enthalpy change for the reaction between aqueous sodium hydroxide (NaOH) and aqueous hydrochloric acid (HCl). Introduction A neutralization reaction is a chemical reaction where a base and an acid react with each other.