Single Replacement Reactions

bonds between H2O2, it is releasing energy in the form of heat which is reason for the warmth of

This reaction is exothermic, as heat is given out. This is because the amount reactant energy is more than the product energy the difference between this is ΔH, therefore some energy has been given out in the form of

In order to measure the heats of reactions, add the reactants into the calorimeter and measure the difference between the initial and final temperature. The temperature difference helps us calculate the heat released or absorbed by the reaction. The equation for calorimetry is q=mc(ΔT). ΔT is the temperature change, m is the mass, c is the specific heat capacity of the solution, and q is the heat transfer. Given that the experiment is operated under constant pressure in the lab, the temperature change is due to the enthalpy of the reaction, therefore the heat of the reaction can be calculated.

This cooling reaction occurs instantaneously but lasts for about an hour. How does this reaction sustain itself for twenty minutes? This question will be answered later in this explanation.

This reaction is exothermic, meaning it releases heat when reactants are converted into products. The negative change in enthalpy (∆H° = -36,757 J) for this reaction indicates that the reaction is losing heat to its surroundings.

Introduction – A double replacement reaction is a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound. If you have the reactants of two reaction solution that you can determine the products. All you need to do is pair the positive parts of the compounds with the other compounds negative part. Once you find the products you can determine their phase of matter by using Table H. You can also use Table F to determine the solubility guidelines for aqueous solutions. If the product falls under soluble or exceptions to insoluble it is in the aqueous stare. If the product falls under

When the two smaller reactants join together, water is produced and removed during the synthesis of the larger molecule. This is also called Dehydration Synthesis.

that is produced and the organs in the body are functioning faster than normal increasing the body temperature.

I believe the type of reaction to have occurred to be a condensation reaction as H2O has been produced as a by-product.

These are just a few of the possible Addition that can occur across the double bond

(Q:1&2) An unknown (nucleophile) was subjected to SN2 reaction when combined with benzyl bromide (electrophile) in a sodium hydroxide (base) solution. The experiment provided a clear understanding in conducting nucleophilic substitution reaction where heat must be applied in order for the SN2 reaction to move forward. The goal was to determine the unknown by incorporating knowledge of polarity, the laws of physics, and the role of energy when forming crystals; "like dissolves like", "matter cannot be created nor destroyed". (Q3:Techniques) Melting point, recrystallization, and thin layer chromatography (TLC) mediated the ability to find which unknown nucleophile was provided

The purpose of this experiment was to perform a nucleophilic substitution reaction to construct a biologically active compound from two simple parts and then to recrystallize the product collected, which is a purification technique that purifies solids based on differences in solubility. In order to accomplish this, other techniques such as heating at reflux, and suction filtration were used. Heating at reflux is a technique used in lab that allows a solution to be heated for a certain amount of time once it begins boiling. Suction filtration is a separation technique that is combined with a water aspirator and was used to collect the product from this experiment, which was 2-methylphenooxyacetic acid.

This is a single replacement reaction. A single replacement reaction involves one element replacing another element in a compound. This type of reaction can be written as:

Chemical reactions that release energy are called exothermic reactions, these reactions are observed by an increase in temperature of the reaction mixture.

Introduction: The theory behind this experiment is the heat of a reaction (∆E) plus the work (W) done by a reaction is equal to