Forming Precipitate… Introduction In this lab, double replacement reactions between compounds were done in order to determine the equation and description of a new substance. During the lab, each participant was given drop bottles, spot plates.
All double replacement reactions have the general form: When a double replacement reaction occurs, the cations and anions switch partners, resulting in the formation of two new ionic compounds AD and CB, one of which is in the solid state.
This solid product is an insoluble ionic compound called a precipitate. To determine whether a product ionic compound will be soluble or insoluble, consult the Solubility Rules provided at the end of the Background section.
Note that if both of the predicted products are soluble, a precipitation reaction will not occur. Since one of the predicted products is insoluble, a precipitation reaction is will occur.
When a double replacement reaction occurs, the cations and anions switch partners, resulting in the formation of water and a new ionic compound or saltwhich is usually soluble.
Neutralization reactions are exothermic, and are generally accompanied by a noticeable release of heat. Both carbonic acid and sulfurous acid are unstable and will decompose to form carbon dioxide and sulfur dioxide gases, respectively: However carbonic acid decomposes to carbon dioxide and water: Identify the reaction type — precipitation, neutralization or gas forming.
Balance the equation to ensure mass conservation.
Order Risk Free. When you order the Smelleze™ Reusable Industrial Smell Deodorizer Pouch, you do so at absolutely zero risk. It comes with a % satisfaction guaranteed warranty. the reaction was completed to determine which combinations produced reactions. 3. Arrange the halogens by oxidizing strength from strongest to weakest. Arrange the halide ions by reducing strength from strongest to weakest. 4. Write balanced redox equations (net ionic) for each combination in Procedure 1 that produced a reaction. 5. After finding the net ionic equation of the reaction, one determined that the products of the reaction were solid copper and aqueous zinc ions. After this knowledge was obtained, one can conclude that the zinc ions were washed out with the water during the final step.
Be sure to include the physical states of all reactants and products in your final equation. Chemical Formulas and Names of Ionic Compounds Ionic compounds are formed when positive cations and negative anions are attracted to each other via strong electrostatic forces.
This attraction is called an ionic bond.
The basic rules for writing the chemical formulas of ionic compounds: Determine the formulas and charges on the cation and anion involved in the compound. Combine the ions in a ratio that results in the formation of a neutral ionic compound.
The total charge of all the positive cations must equal the total charge of all the negative anions in the compound. The numbers of each element present in the compound become subscripts in the chemical formula. Write the formula for iron III chloride First identify the cation and the anion in this compound.
Write the formula for magnesium phosphate.The most important focus of performing the experiment is the net ionic equation which show which ions are water soluble and which ions are just spectators.
Purpose The purpose of this experiment was to study ionic reactions and to be able to understand and write balance ionic reaction equations%(18). In this lab, magnesium metal (an element) is oxidized by oxygen gas to magnesium oxide (a compound). Magnesium reacts vigorously when heated in the presence of air.
The Mg-O 2 reaction is energetic enough to allow some Mg to react with gaseous N 2. Ionic Reactions 6 PHCAT Page Count Lab Code 8 CATALYST FOR CHEMISTRY The Electrons and the Shell Model 14 PHCAT Conductivity and Models of Chemical Bonding 14 PHCAT Molecules and Lewis Dot Structures 28 PHCAT .
After finding the net ionic equation of the reaction, one determined that the products of the reaction were solid copper and aqueous zinc ions.
After this knowledge was obtained, one can conclude that the zinc ions were washed out with the water during the final step. Identifying an Unknown Compound by Solubility, Functional Group Tests and Spectral Analysis This handout is a supplement to Signature Lab Series ANAL and contains material adapted from compounds in their ionic forms are more soluble in water than their neutral forms.
Lab Report: Types of Reactions Record your observations on these data pages as you perform each reaction. Write a balanced Net Ionic Equation 2. Nickel(II) nitrate and sodium hydroxide Microsoft Word - Reactions Report Author: scholefield_michelle.