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In a lab, silver nitrate,, is dissolved in water until no solid is observed in the container. Then, a solution of sodium chloride, , is added to the container. When you combine these aqueous solutions, there is no noticeable change in temperature; however, a solid precipitates and there is a slight change of color. Which statements about the lab experiment involving silver nitrate and a sodium chloride solution are true? Formation of a solid indicates that a chemical reaction occurred The initial disappearance of silver nitrate in water indicates a chemical reaction occurred The color change of the solution indicates a chemical reaction occurred A chemical reaction occurred when silver nitrate was added to water A chemical reaction occurred when the solutions were combined The lack of temperature change indicates a chemical reaction didn't occur
A buffer is prepared by mixing 615 mL of 0.50 M formic acid, HCHO2, and 385 mL of 0.50 M sodium formate, NaCHO2. Calculate the pH.
Ice cream mix containing 40% total solids is frozen so that half of the original water is made into ice (which is effectively pure water). If the mix contained 12% fat, 16% sugar, and 12% nonfat milk solids
A sample of 0.368 mol of a metal M reacts completely with excess fluorine to form 28.7 g of MF2. what element is represented by the symbol M?
The structure for methyl orange in acid solution is not as simple as protonation of the amine nitrogen. In fact, protonation of one of the azo nitrogens occurs resulting in a new, conjugated system.
Determine the symmetry elements of objects with the same shape as the boundary surface of a) an s orbital, b) a p orbital c) a dxy orbital d)a dz2 orbital.
65.50 mL of 0.161 M HF is titrated with 0.1200 M NaOH. What is the pH at the equivalence point? (Ka for HF is 6.8 x 10-4)
A researcher studying the nutritional value of a new candy places a 5.9 gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen.
If 860 liters of neon at 45°C and 800 mm. are decreased to 700 liters at the same pressure, what is the new temperature of this gas?
Calculate the bond order for one carbon-carbon bond in benzene molecule, taking a and pi bonds
The elctrolysis of an aqueous sodium chloride solution using inert electrodes produces gaseous chlorine at one elctrode. At the other electrode gaseous hydrogen is produced and the solution becomes basic around the elctrode.
A 4.50-g sample of LiCl at 25.0 C dissolves in 25.0 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C.
What is the theoretical percent, by weight, of calcium in Ca(OCl)2
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