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If 50.0 g of CO2 (g) and 12.0g H2O (g) are formed when a hydrocarbon compound is burned in excess O2. What is the mass?
hard, amorphous polymers become soft and flexible at the glass transition temperature B) crystalline regions of a polymer melt transition temperature C
How many moles of oxygen atoms are combined with 4.20 moles of chlorine atoms in Cl2O7?
A 19.0 kg piece of zinc at 67 degrees Celsius is placed in a container of water. The water has a mass of 23 kg and has a temperature of 9.4 degrees Celsius before the zinc is added. What is the final temperature of the water and zinc?
Draw the accepted mechanism for each reaction and illustrate how each stereoisomer is formed in the reaction.
A steel cylinder contains 120. moles of nitrogen gas at a temperature of 32 C and pressure of 775 torr. After some of the nitrogen gas has been used,
find molarity molality percentage composition boiling and freezing point of a solution.dataelement atomic wt
How many milliliters of a 0.150 M magnesium hydroxide solution are needed to neutralize 1.282 L of a hydrochloric acid solution that is 0.1048 M
What is the concentration of Ca2+ ions in a solution of CaI2 that has I- ion concentration of 0.520 M.
How would you expect the amino acids glycine, alanine, and phenylalanine to travel relative to each other on the silica plates using a mixture of chloroform/methanol/ammonia? Explain your answer.
When 20 mL of a 120 mL stock solution containing 2 M BaF2 is diluted to 80 mL, what is the concentration of F- in the new solution.
In the information of smog, nitrogen and oxygen gas react to form nitrogen dioxide. How many grams of NO2 will be produced when 2.0 L of nitrogen at 840 mmHg and 24 degrees C are completely reacted
determine the molar mass of chloroform gas if a sample weighing .389 grams is collected in a flask with a volume of
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