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The Group 5A elements N,P,As have lower (less negative) electron affinities than most of the Group 4A or Group 6A elements because N,P,As have half-filled subshells.
Identifying Food Groups and Calculating Calories, Question: If one slice of chocolate cake contains 35g of carbohydrate, 15g of fat and 5g of protein
What is the main structural feature of the azo dyes that causes them to be colored compounds? Methyl Orange is an acid-base indicator. In dilute solution at pH greater than 4.4, it is yellow.
how many milliliter of 0.165M KMnO4 are needed to react with 108.0ml of 0.165 M oxalic acid? How many milliliter of 0.165M oxalic acid are required to react with 108ml of 0.165M KMnO4
What external pressures have moved mainstream medicine to accept alternative therapies? Have any alternative therapies been proven to work as well as standard treatments? Support your answer with information from the reading materials and/or inter..
if the density of carbon dioxide in air is .65mg/L, what volume is occupied by 25kg of carbon dioxide?
What are the 8 balanced molecular equations for all of the chemical reactions involved in the copper cycle experiment
A 0.2527-g sample of a mixture of Mg(OH)2 and Al(OH)3 was treated with 50.00 mL of 0.225 mol L?1 HCl(aq). The resulting solution required 13.73 mL of 0.176 mol L?1 NaOH(aq) to neutralize the excess, unreacted HCl. What was the percentage by mass o..
A compound is found to be 26.95% sulfur, 13.43% oxygen, and 59.61% chlorine by mass. What is the simplest formula of the compound?
Calculate the final temperature of the solution, assuming the delta H reaction for HCl + NaOH = -56.2 kJ/mole and that the solution's specific heat is the same as water: 4.184 J/g Celsius.
(a) What is the molecular weight of the drug? (b) What is the boiling point of the solution? (c) What is the osmotic pressure of the solution?
containing helium gas at a pressure of 31.1 atm is used to fill a weather balloon in order to lift equipment into the stratosphere. To what maximum pressure (in atm) could a 151 L balloon be filled.
A 45.0-L steel tank at 20.0°C contains acetylene gas, C2H2, at a pressure of 1.39 atm. Assuming ideal behavior, how many grams of acetylene are in the tank?
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