Chemistry
Excess ofLi makes LiCl crystal pink and excess of K makes KCI crystals lilac. Is this true? How will you account for the abive processes?
Homework Answers
Yes. This is an example for metal exceess defect due to anion vacaniees. The colour is due to the presence of F-center in the crystals.
10 Equal masses of the following non-volatile solutes are dissolved in 1000g of H20(0). Which solution...
10 Equal masses of the following non-volatile solutes are dissolved in 1000g of H20(0). Which solution will have the LOWEST freezing point. A. NaCl B. KCI C. LiCl D. CsCl E. RbCl Suppose that the reaction A → products proceeds in one step and is exothermic. It has an activation barrier of 75 k/mol. How would the energy diagram change if a catalyst is added to the reaction? Select all the statements that could be true. 11 Addition of the...
In crystals of the salt cesium chloride, cesium ions Cs+ form the eight corners of a...
In crystals of the salt cesium chloride, cesium ions Cs+ form the eight corners of a cube and a chlorine ion Cl- is at the cubes center. The edge length of the cube is L = 3.5 x 10^-10 m. The Cs+ ions are each deficient by one electron( and thus each has a charge of +e) and the Cl+ has one excess electron (and thus has a charge of -e). (a) if one of the Cs+ ions is missing...
chemistry
A student doing the experiment in this module extendedthe study of the [CoCl4]2- ion /[Co(H20)6]2+ ionequilibrium. Whatis the net ionic equation for this reaction?ColumnpreviewNet ionic reactiona. [Co(H2O)6]2+ + 4Cl- <--> [CoCl4]2- + 6 H2Ob. [CoCl4]2- <--> [Co(H2O)6]2+c. [CoCl4]2- + 4Cl- <--> [Co(H2O)6]2+ 6 H2Od. [CoCl4]2- + 6 H2O <--> [Co(H2O)6]2+ + 4Cl-e. No right answerf. CoCl2 + 2HCl <--> [CoCl4]2- + 2H+MatchingpairsNet ionic reaction- Select choice -abcdefA student doing the experiment in this module extended the study ofthe [CoCl4]2- ion...
0/5 pts Incorrect Question 10 If 118.0 g of potassium are reacted completely with excess chlorine,...
0/5 pts Incorrect Question 10 If 118.0 g of potassium are reacted completely with excess chlorine, according to the equation 2 K + Cl2 2 KCI, how much potassium chloride cOuld form? 2254 118.0g 112.7 450.8 g
the questions, please. thank you. Report Sheet Reactions in Aqueous Solutions: Metathesis Reactions and Net Tonle...
the
questions, please.
thank you.
Report Sheet Reactions in Aqueous Solutions: Metathesis Reactions and Net Tonle Equations 2. Crystal shape_ Needles 3. Identity of crystals 4. Temperature of filtrate 52°C 5. Crystal shape of second batch 6. Identity of second batch of crystals 7. Crystal shape of third batch 8. Identity of third batch of crystals QUESTIONS Y. Which of the following reactions are metathesis reactions? (a) 2KCIO, — 2KCI +302 (b) Cu(NO3)2 + Zn — Cu + Zn(NO)2 (c)...
A true breeding plant that produces white flowers is crossed with a true breeding plant that...
A true breeding plant that produces white flowers is crossed with a true breeding plant that produces red flowers. The resulting F1 are all plants with pink flowers. One of the pink-flowered plant is crossed to a true breeding white plant and 16 plants are produced. How many plants do you expect to see from each phenotype? Select one: a. 12 pink and 4 white b. 16 pink c. It is impossible to know due to linkage d. 8 red...
AgCl (s) + --> <-- Ag + (aq) + Cl- (aq) Shown above is information about...
AgCl (s) + --> <-- Ag + (aq) + Cl- (aq) Shown above is information about the dissolution of AgCl in water at 298 K. In a chemistry lab a student wants to determine the value of s, the molar solubility of AgCl, by measuring [Ag+] in a saturated solution prepared by mixing excess AgCl and distilled water. How would the results of the experiment be altered if the student mixed excess AgCl with tap water (in which [Cl-] =...
NEED HELP WITH ALL PLEASE. MICROBIOLOGY You have stained a bacteria using the Gram staining technique...
NEED HELP WITH ALL PLEASE. MICROBIOLOGY
You have stained a bacteria using the Gram staining technique what color would any endospores be if present? A. Colorless B. Green C. Pink D. Blue E. Purple 2. If you omitted the Safranin step in a gram staining procedure, what would be the color of a Gram-negative bacteria? A. Colorless B. Pink C. Green D. Purple E. Blue 3. Bacillus licheniformis would be what color and shape after a Gram staining? A. Purple...
2 vered A true breeding plant that produces white flowers is crossed with a true breeding...
2 vered A true breeding plant that produces white flowers is crossed with a true breeding plant that produces red flowers. The resulting F1 are all plants with pink flowers. One of the pink-flowered plant is crossed to a true breeding white plant and 16 plants are produced. How many plants do you expect to see from each phenotype? f 2.50 estion Select one: a. 16 pink b. 12 pink and 4 white c. 8 red and 8 white d....
please help me with the classifications of either a physical change or chemical change. thank you!!!...
please help me with the classifications of either a physical change
or chemical change. thank you!!!
B. Chemical Properties Physical Change or Chemical Change Procedure Observation 1. Reactions of Elements (a) copper wire + heat Tolowed red and changed to black Chemical Change solid gassrystal physical change (b) iodine crystal + heat Pink/Purple gas y then the crystals thanh silver greay 2. Reactions of Compounds Solid Changed to (a) ammonium bicarbonate Cloudy colorless + heat ho odor gas. Chemical change...
10 Equal masses of the following non-volatile solutes are dissolved in 1000g of H20(0). Which solution will have the LOWEST freezing point. A. NaCl B. KCI C. LiCl D. CsCl E. RbCl Suppose that the reaction A → products proceeds in one step and is exothermic. It has an activation barrier of 75 k/mol. How would the energy diagram change if a catalyst is added to the reaction? Select all the statements that could be true. 11 Addition of the...
0/5 pts Incorrect Question 10 If 118.0 g of potassium are reacted completely with excess chlorine, according to the equation 2 K + Cl2 2 KCI, how much potassium chloride cOuld form? 2254 118.0g 112.7 450.8 g
the
questions, please.
thank you.
Report Sheet Reactions in Aqueous Solutions: Metathesis Reactions and Net Tonle Equations 2. Crystal shape_ Needles 3. Identity of crystals 4. Temperature of filtrate 52°C 5. Crystal shape of second batch 6. Identity of second batch of crystals 7. Crystal shape of third batch 8. Identity of third batch of crystals QUESTIONS Y. Which of the following reactions are metathesis reactions? (a) 2KCIO, — 2KCI +302 (b) Cu(NO3)2 + Zn — Cu + Zn(NO)2 (c)...
A true breeding plant that produces white flowers is crossed with a true breeding plant that produces red flowers. The resulting F1 are all plants with pink flowers. One of the pink-flowered plant is crossed to a true breeding white plant and 16 plants are produced. How many plants do you expect to see from each phenotype? Select one: a. 12 pink and 4 white b. 16 pink c. It is impossible to know due to linkage d. 8 red...
NEED HELP WITH ALL PLEASE. MICROBIOLOGY
You have stained a bacteria using the Gram staining technique what color would any endospores be if present? A. Colorless B. Green C. Pink D. Blue E. Purple 2. If you omitted the Safranin step in a gram staining procedure, what would be the color of a Gram-negative bacteria? A. Colorless B. Pink C. Green D. Purple E. Blue 3. Bacillus licheniformis would be what color and shape after a Gram staining? A. Purple...
2 vered A true breeding plant that produces white flowers is crossed with a true breeding plant that produces red flowers. The resulting F1 are all plants with pink flowers. One of the pink-flowered plant is crossed to a true breeding white plant and 16 plants are produced. How many plants do you expect to see from each phenotype? f 2.50 estion Select one: a. 16 pink b. 12 pink and 4 white c. 8 red and 8 white d....
please help me with the classifications of either a physical change
or chemical change. thank you!!!
B. Chemical Properties Physical Change or Chemical Change Procedure Observation 1. Reactions of Elements (a) copper wire + heat Tolowed red and changed to black Chemical Change solid gassrystal physical change (b) iodine crystal + heat Pink/Purple gas y then the crystals thanh silver greay 2. Reactions of Compounds Solid Changed to (a) ammonium bicarbonate Cloudy colorless + heat ho odor gas. Chemical change...
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