Chemical Reaction Lab Report

When calcium chloride, sodium bicarbonate, and phenol red are put into a bag and mixed up the type of reaction that occurs is a chemical reaction for the following reasons. Things that indicate that a chemical reaction has occurred are color change, formation of precipitate, formation of gas, and energy transfer in which three of them took place in the reaction of calcium chloride, sodium bicarbonate, and phenol red. The three indicators in this experiment were: a color change, formation of gas, and an energy transfer

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?

in which n is a large number of moles. A chain reaction is a series of smaller reactions in which the previous reaction forms a reagent for the next reaction. The synthesis of hydrogen bromide is a good example:

Neither matter nor energy is created or destroyed in a chemical reaction only changed. This experiment is a decomposition reaction a more complex substance breaks down into its more simple parts. One reactant yields 2 or more products.

Combination reaction is a reaction where two reactants are combined into one product (Helmenstine, 2014). An example of this in everyday life is when we digest food in our stomachs, the acid in the stomach reacts with the molecules contained within the food and breaks them down.

Exothermic reactions can be used for everyday purposes. For example, hand warmers and self-heating cans for drinks (such as coffee) use exothermic reactions.

The four kinds of chemical reactions are synthesis, decomposition, single-displacement and double-displacement. Materials: Bunsen burner, sparker, tongs, 5 test tubes, scoop, wooden splint, lead(II)nitrate, magnesium wire, copper(II) carbonate, hydrochloric acid, zinc, potassium iodide, test tube tack, googles, apron, gloves and a metal test tube holder. Methods: Experiment 1: Synthesis 1, Obtain a piece of magnesium wire.

Chemical reactions make new things by rearranging other things. In a chemical reaction, the main change that occurs relates to the way atoms are bonded to each other, in order to change those connections, bonds must be broken and new bonds be formed.

Purpose: The purpose of this experiment was to observe the many physical and chemical properties of copper as it undergoes a series of chemical reactions. Throughout this process, one would also need to acknowledge that even though the law of conservation of matter/mass suggests that one should expect to recover the same amount of copper as one started with, inevitable sources of error alter the results and produce different outcomes. The possible sources of error that led to a gain or loss in copper are demonstrated in the calculation of percent yield (percent yield= (actual yield/theoretical yield) x 100.

Introduction: If two reactants are mixed, they will tend to react to form products until a state is reached where the amounts of reactants and products no longer change. Reactants and products are in chemical equilibrium and will remain until the system is altered in some way. Temperature change and the alteration of the concentration of reactants or products disturbs the equilibrium.

The reactant represents the substances that you start with the beginning of the experiment. The product is the substance that is made out of the reactants. There are three different ways you can write a chemical equation. They are word, molecular, and symbol

A chemical reaction is a chemical change which forms new substances, such as compounds. Common chemical reactions include a candle burning, a nail rusting. *Physical changes reposition molecules but do not affect their internal structures. Physical changes you may already know of are, scrambling eggs, boiling water and even slicing an apple. Where as a chemical changes result in the creation of different chemical substances at the molecular level.

A decomposition reaction occurs when compounds breakdown into simpler substances. An example of this reaction is sodium and chlorine joins to form sodium chloride (equation 2).A single replacement reaction takes place when one element replaces another one in a compound. An example of a single replacement reaction is aluminum sodium replaces iron (III) chloride to form sodium chloride and iron (III) (equation 3).A double replacement occurs when different compounds trade places. An example of this type of reaction is silver chloride and sodium nitrate (equation 4).A combustion reaction is when hydrocarbons combine with oxygen to produce carbon dioxide and water vapor. An example of this would be the reaction of methane and oxygen with the result

In the reaction A2 + B2 -> 2AB, for every 1 mol of A2 and B2 used, 2 mols of AB are produced. In a chemical reaction the reactants are used up in order to form the products. In this case the A2 and B2 are the reactants and AB is the product.

To begin with, a chemical reaction is a rearrangement of atoms when bonds are broken in the reactants and new ones form which are the products. Atoms cannot be lost, changed, or gained in identity. For example, when hydrogen and oxygen are put together, they make water (Shipman, 2014). The chemical reaction known as oxidation is when oxygen, a very reactive element, combines with many substances in a reaction (Cobb, 1972). This reaction occurs in many fruits, especially apples because they contain a vast amount of an enzyme known as polyphenol oxidase (Gritzer, 2015).