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Is there any difference between the properties of pure water that had been boiled and condensed and the properties of pure water that has been frozen and then melted? Explain please.
A mixture of CaCO3 and CaO weighing 0.630 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.500 g.
A gas is placed in a storage tank at a pressure of 20 atm at 20.3 C there is a small metal plug in the tank made of a metal alloy that melts at 125C what is the maximum pressure in the tank?
How many mL of 0.145 M NaOH solution will be required to neutralize 5.00 mL of a 0.829 M HCl solution
Sodium bicarbonate is called baking soda because when heated, it releases carbon dioxide gas, which is responsible for the rising of cookies, doughnuts, and bread. Calculate the volume (in liters) of carbon dioxide by heating 4.37 g of sodium bica..
A hydrated form of copper sulfate (CuSO4·x H2O) is heated to drive off all the water. If we start with 9.47 g of hydrated salt and have 5.29 g of anhydrous CuSO4
The latent heat of fusion for sodium is 2.6kJ/mol. How much heat is needed to melt 46g of sodium at its melting point of 98 degree Celcius?
When M2S3(s) is heated in air, it is converted to MO2(s). A 4.500-g sample of M2S3(s) shows a decrease in mass of 0.209 g when it is heated in air. What is the average atomic mass of M.
How much heat is required to convert 27.0 grams of ethanol at 28 degrees celcius to the vapor phase at 78 degrees celcius?
The numbers indicate the relative amounts present at equilibrium, compared to 1-butene as the standard. 1-Butene: 1.0 cis-2-Butene: 7.2 Trans-2-Butene: 85 Explain this trend qualitively.
It takes 51.0 J to raise the temperature of an 10.2 g piece of unknown metal from 13.0C to 25.0C. What is the specific heat for the metal
Analyzing a new reaction Consider the following elementary steps that make up the mechanism of a certain reaction: 1.3A>B+C 2. B+2D>C+F A. What is the overall reaction?
What is the mass of a glucose solution that fills a 0.500 intravenous bottle if the density of the glucose solution is 1.15 ?
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