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1) Rank the following in order of decreasing electronegativity:
a) Br, F, Ga, N3-, Co
b) Sr, Rb, Mg, Li, C4+
2) How many water molecules are in 2.0 moles of water?
The temperature scale is called °M and has a value of 0°M at the freezing point and 100°M at the boiling point of ethylene glycol. What would the temperature be in degrees centigrade, if it was 20.916°M
A sample of gas occupies a volume of 569mL at 1.24 atm and 106 celsius. Calculate the temperature of the gas if its pressure is changed to 1.12 atm while its volume its constant.
While solutions of cobalt chloride as well as carbonic acid react which of the following terms will be present in the net ionic equation
Given the quantities of chemicals used in this recipe one could believably have gotten a 100% chemical yield without having completely reacted all of the magnesium, or without having completely reacted all of the bromobenzene
the suspended solid content of a 1-litre river water sample is 20 mglitre. assume that material all organic carbon and
Phosgene (carbonyl chloride),COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: CO(g)+Cl2(g)?COCl2(g)
Question- Consider a saturated solution of CaCl2. Which of the 3 processes will happen under each given circumstance? Circumstance 1) more calcium ion is added to the mixture? Circumstance 2: more sodium chloride is added to the mixture? Circumstan..
Look at an electron affinity chart. If we go to a planet where large deposits of element astatine (At), element 85, were found, define what would be its natural molecular composition. That is what would you say would be the molecular formula for A..
What mass of this substance must evaporate in order to freeze 230 of water initially at 24? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of 15 of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings)
a cylinder -piston system contains 4 kilograms of liquid water saturated at 35 c. a piston frictionless with
Assume that the heat of combustion of benzene is -4.18 x 103 kJ/mol. Enter your answer with three significant figures in exponential format (1.23 x 104 = 1.23E4).
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