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Classify each reaction and give the name of all the chemical formula involved for each number.
1. Na2CO3(s) + SiO2(s) -> Na2SiO3(l) + CO2(g)
2. 2 Mg(NO3)2(s) -> 2 Mg(NO2)2(s) + O2(g)
3. 3 HNO2(aq) -> 2 NO(g) + NO3-(aq) + H3O+(aq)
4. BaCO3(s) -> BaO(s) + CO2(g)
5. 2 Eu2+(aq) + 2 H+(aq) -> 2 Eu3+(aq) + H2(g)
6. [Ag(NH3)2]+(aq) + 2 CN-(aq) -> [Ag(CN)2]-(aq) + 2 NH3(aq)
7. MgO(s) + 2 HCl(aq) -> MgCl2(aq) + H2O(l) 8. CaO(s) + SO2(g) -> CaSO3(s)
9. 2 NO(g) + O2(g) -> 2 NO2(g)
10. N2(g) + 2 O2(g) -> 2 NO2(g)
Calculate the volume of a chromium atom in microliters if the volume of a single chromium atom(Cr) =8.10E-24 cm 3 and determine how many copper(Cu) atoms would there be in 159 milligrams of Cu if The mass of a single Cu atom = 1.06E-22 grams.
Which corresponds to approximately 2.65 * 104 mol of electrons at the voltage of a fuel cell and calculate how much heat energy is absorbed?
If a student weighs out .500g of oxalate unknown and it takes 20.6 mL of permanganate solution to titrate it, how much oxalate unknown should the student weigh out
Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl
Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C, and no heat transfer between the cold pack and the environment
170 mL of an HCl solution with pH of 2.60 is added to 200 mL of an HNO3 solution. The resulting pH is 1.40. What was the pH of the original HNO3 solution?
A sample of sodium reacts completely with 0.568kg of chlorine, forming 936g of sodium chloride. What mass of sodium reacted.
Hydrogen gas was cooled from 150C to 50 C. It's new volume is75 mL. What was it's original volume?
If 13.0g of CCl3F is enclosed in a 1.2-L container, what mass of liquid will be present, when the vapor pressure of CCl3F at 300K is 856 torr?
Assuming that the calorimeter absorbs only a negligible quantity of heat and that the density of the final solution is 1.0 g/mL, calculate the enthalpy change per mole of BaSO4 formed.
Consider the following electrochemical cell at 298 K. One compartment contains a 1.00-M solution of silver nitrate. The other compartment contains a saturated solution of silver iodide
Calculate the entropy change associated with the isothermal expansion of 5.40 mol of ideal gas atoms
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