1) Element formula of astatine is At2 because is an halide or an 17th group element. These elements reacts with itself forming diatomic molecules like: F2, Cl2, etc... .
At2 is solid at room temperature because boiling points increases according we move descendent into 17th group.
2) C2 oxidizes B- to B because color changes from red to yellow and C2 is reduced because it takes electrons from B-
C2 is worse oxidant than A2 because color does not change and A2 prefers being reduced than C2
C2 is better oxidant than B2 because the spontaneous reactions is:
and its color changes from red to yellow
3) To identify what compound is present we have to make color development from a colorless solution. A- is less stable than C- and probably reduces to C2 to develop a red solution
Section Name Experiment 12 Advance Study Assignment: The Alkaline Earths and the Halogens I. As pure...
Name All of the common noble gases are monatomic and low-boiling. Their boiling points in℃are: Ne--245; Ar--186. Kr--152, Xe--107. Using the periodic table, what can you conclude about the boiling point of Rn from these data? 1. 2. Substances A, B, and C can all act as oxidizing agents. In solution, A is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A B and C-ions, all of which are...
Substances A2, B2, and C2 can all act as oxidizing agents. In solution, A2 is green, B2 is yellow, and C2 is red. In the reactions in which they participate, they are reduced to A-, B-, and C ions, all of which are colorless. When a solution of B2 is mixed with one containing C ions, the color changes from yellow to red. a. Which species is oxidized? b. Which is reduced? When a solution of B2 is mixed with...
Substances T2, U2, and V2 can all act as oxidizing agents. And solution T2 is blue, U2 is green and V2 is red. In the reactions in which they participate, they are reduced to T-, U-, and V- ions all of which are colorless. when a solution of V2 is mixed with one containing U- ions, the color changes fron red to green. a) which species is oxidized? b) which is reduced? when a solution of V2 is mixed with...
Oxidation reduction reaction 4. Substances A, B, C can all act as oxidizing agents. In solution, A is green, B is red, and C is yellow. I C ions, al ions, the color remains red. n the reactions in which they participate, they are reduced to A, B, and Il of which are colorless. When solution B is mixed with one containing C Which species is oxidized? Which species is reduced? When a solution of B is mixed with a...
Equation for Part A above 1. Write net-ionic equations for the following precipitation reactions: a) The reaction between barium nitrate and sulfuric acid. b) The reaction between calcium nitrate and sodium oxalate. 2. Elements A, B, and C exist as the diatomic molecules A2, B2, and C2. All act as oxidizing agents, i.e., they take electrons from other species. In aqueous solution, A2 is green, B2 is yellow, and C2 is red. When they have gained electrons from other species,...
answer 2,3,4 only Substances A, B, and C can all act as oxidizing agents. In solution the neutral substance A is green, B is yellow and C is red. In reactions in which they participate, they are reduced to A-, B-, and C- ions, all of which are colorless. When a solution of A is mixed with one containing C- ions, the color changes from green to red. Write a chemical reaction for this process. Use the reactions on Page...
Section Name Experiment 2 Advance Study Assignment: Properties of Systems in Chemical Equilibrium 1. Methyl orange, HMO, is a common acid-base indicator. In solution it ionizes according to the equation: HMO(aq) H(aq) + MO (aq) red yellow If methyl orange is added to distilled water, the solution turns yellow. If a drop or two of 6 M HCl is added to the yellow solution, it turns red. If to that solution one adds a few drops of 6 M NaOH...
i need help answering these questiona the graph helps to answer #1 Experiment 4 Advance Study Assignment: pH, Its Measurement and Applications 1. A solution of a weak acid was tested with the indicators used in this experiment. The colors observed were as follows: Methyl violet Thymol blue Methyl yellow violet orange red Congo red Bromcresol green yellow Chapter 4: pH Measurements-Buffers and Their Properties What is the approximate pH of the solution? 2. An aqueous solution of NH, has...
This is a better photo Section Name Experiment 21 Advance Study Assignment: Rates of Chemical Reactions, II. A Clock Reaction 1. A student studied the clock reaction described in this experiment. She set up Reaction Mixture 2 by mixing 20 ml. 0.010 M KI. 10 mL 0.0001 M Na.S.0. 10 mL 0.040 M KBrO and 10 ml, O.10 M HCT using the procedure given. It took about 45 seconds for the color to turn bluc. She found the concentrations of...
Here are the final reactions that the question is asking about. Please show every step! Thanks! Laboratory 13 Quality Control: Verifying the Concentration of Hypochlorite (CIO) in Bleach Introduction Titration is a common analytical technique that is used to verify the concentrations of chemicals before they are sold as commercial products, in a process known as quality control. In this lab, you will be using a redox titration to find the concentration of the strong oxidizing agent hypochlorite (CIO) which...