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1. What is the balanced redox reaction for reaction (1): H223-22 O + IO → I + O
2. What is the balanced redox reaction for the reaction between iodine and thiosulfate. (When thiosulfate is oxidized it becomes the dithionate ion: S4O62-.)
3. One pair of students decided to change the chemicals used in the reaction as their changes. For one run they decided to use potassium bromate, and in the second run they decided to use potassium permanganate.
a. Which chemical should they swap out for the potassium bromate?
b. Which chemical should they swap out for the potassium permanganate?
The melting point of sodium is 98 degrees celcius. How much heat is absorbed by sodium when 800 grams os solid sodium metal become liquid at 98 degrees celcius?
an electron makes a transition from n = 7 to n = 5. what is the energy associated with this transition
give the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation
The addictive painkiller morphine, C17H19NO3, is the principal molecule in the milky jiuce that exudes from unripe poppy seed capsules. Calculate the pH of a 0.0227 M solution of morphine, given that Kb = 7.9E-7.
Chemical dependency Counselling
The RMS velocity of the molecules is 4.5 x 10^4 cm/s. The density of the gas is 1 gm per liter
What volume of 0.0955 M HCI in millimeters is required to titrate 2.152 g of Na2CO3 to the equivalent point/ My teacher does not explain any thing and I need to understand this.
You are given an unknown (solid or solution) and told that it can be one of the other of the compounds in the pairs listed below. Describe a simple chemical test (Not a flame test) using only reagents from our chemistry kits that would enable you ..
Complete the reaction of salicylic acid and 4-aminobenzenesulfonic acid by drawing the expected product.
What might determine whether an individual investor buys corporate or municipal bonds? Provide a numerical example.
How many kilograms of calcium carbonate would be needed for complete neutralization? Concentrated hydrochloric acid is 38.0 % HCl by mass and has a density of 1
Construct a delta H and delta S table, including the four possibilities associated with the two possible signs for each of delta H and delta S. Discuss the resulting sign of delta G and the spontaneity of the process.
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