Candle Reaction Lab

Basic Stoichiometry PhET Lab rvsd 2/2011 Let's make some sandviches! _ Introduction: When we bake/cook something, we use a specific amount of each ingredient. Imagine if you made a batch of cookies and used way too many eggs, or not enough sugar. YUCK! In chemistry, reactions proceed with very specific recipes.

McLean 1 Creating Acetylene Gas Introduction The purpose of the lab was to determine the ratio of air to acetylene results in complete combustion of acetylene gas. The balanced chemical equation for this experiment was C2H2(g) + O2(g) --> CO2(g)+ H2O(l). Complete combustion is the reaction of an element or compound with oxygen to produce the most common oxides and energy. Complete combustion occurs when the fuel and oxygen combine in exact proportions to completely burn the fuel, which leaves a clean test tube. Incomplete combustion is the reaction of an element or compound with oxygen to produce some oxides with less oxygen than the most common oxides. Incomplete combustion occurs when there is not enough oxygen to react

Try to repeat the experiment to compare the weight of the candle instead of its height. Do you think there will be any difference in your findings?

Komal Patel Chemistry Honors Period: 5 February 29, 2016 Chemical Reaction Lab Report Introduction A chemical reaction is when substances (reactants) change into other substances (products). The five general types of chemical reactions are synthesis (also known as direct combination), decomposition, single replacement (also known as single displacement), double replacement (also known as double displacement), and combustion. In this lab, the five general types of chemical reactions were conducted and observations were taken before, during, and after the reaction. Then the reactants and observations were used to determine the products to form a balanced chemical equation. The purpose of this lab was to learn and answer the question: How can observations be used to determine the identity of substances produced in a chemical reaction?

Classifying Chemical Reactions Purpose: The purpose of this experiment is to observe a variety of chemical reactions and to identify patterns in the conversion of reactants into products.

A physical change is one that affects only the physical properties of a substance, while a chemical change alters a substance at the molecular level. Physical Properties: A property that can be observed or measured without changing the chemical identity of the substance. Physical properties can be categorized as either intensive or

Alka-Seltzer being affected by different temperatures in different cups Research Question How does the temperature affect the speed in which an Alka-Seltzer tablet fully dissolves in three cups filled with water with different temperatures. Background Information A chemical reaction is a process that involves change of the molecular or ionic structure of

| Combustion Product-reacted with 6M HCl | Combustion product reacted by becoming cold, dissolving, and no gas formation with an end product is clear colorless solution.

Blow out the flame and immediately place a lighted match in the “smoke” - During: The wax began dripping down the sides of the candle once the wick was lighted. The flame was blue at the bottom and ombred up to yellow at the top of the flame. The flame was jumpy and not steady.

1. Color changes 2. Precipitate (formation of a solid) 3. Formation of gas bubbles Procedure: (1 of 20 points) No preliminary dilution of my test chemicals What are chemical changes? Give some examples. Chemical change results in one or more substances of entirely different composition. Chemical change requires a chemical reaction.

Is A+C a chemical reaction? Yes, because of serval chemical changes happening to the solution before and after. I came to this conclusion by using three pieces of evidence. The three pieces of evidence were a ph imbalance, a dramatic density rise, and a change in electroconductivity. The first piece

In our everyday life, we witness many chemical reactions. Some fun reactions you may know about are mentos and pop or vinegar and baking soda. Those two reactions are visible to the naked eye. You aren't able to see photosynthesis completely but you know that it take place

Finding the Ratio of Moles and Reactants in a Chemical Reaction The main objective is not only to reach the optimum ratio to generate the greatest amount of heat and temperature, but also to maintain a constant volume throughout the entire experiment.

A Simple Chemical Reaction with Beautiful Colors. Introduction In this lab we are going to be working on chemistry and a chemical reaction. A chemical reaction is when two or more chemical meet each other causing a change or reaction to the chemicals being mixed. We are going to do a chemical reaction ourselves, we are going to Represent this chemical reaction with milk, food coloring and dish soap. When you see this chemical reaction known as a non-polar molecule, although this is not an explosion or an over flow due to gas and pressure causing a mess, it is still really interesting to see and it is simple. Well going through this experiment, I want you to ask and answer why the food coloring travels away from the dish soap and what role

Experiment 3: Oxidation of Borneol to Camphor By: Evan Holley Lab partner: Jeffrey Horton T.A.: Garret CHM2211L-008 07/12/2015 Introduction The overall goal in this lab was to oxidize borneol, a secondary alcohol, into camphor, which is a ketone. For the purposes of oxidation chromic acid was utilized, which was prepared by adding a 1:1 ratio of chromium trioxide to dilute sulfuric acid.