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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)
Determine the pressure of the gases trapped in the closed end of a manometer apparatus if the water column which separates the closed end from the open end is 10.55 cm higher on the closed end than the open end, and if the barometric pressure at t..
If 3.0 Ml of distilled water is added to 2.0 ml of 0.35M CoCl2 solution, what is the concentration of the resulting solution.
A sample of oxygen is collected over water at a total pressure of 690.7 mmHg at 19°C. The vapor pressure of water at 19°C is 16.5 mmHg. What is the partial pressure of O2
The vapor pressure and enthalpy of vaporization of an unknown substance are measured to be 204.2 torr and 28.8 kJ/mol, respectively at room temperature (298.15 K). Estimate the normal boiling point of the substance at an atmospheric pressure of 76..
What is the molar solubility of PbI2 in water. For PbI2, Ksp=7.9x10-9. You may assume that the ions do not form ion pairs in solution. Give your answer in moles per litre, accurate to two significant figures.
Write the concentration of cations in mEq/L and total the concentration of cations in the solutions. Repeat for anions.
In the combustion of propane for energy, how many kilojoules of heat are produced when 2 kilograms of propane are completely combusted in the presence of excess oxygen
Complete and balance the following redox equation that occurs in acidic solution using the set of smallest whole-number coefficients. What is the sum of all the coefficients in the equation
we need to dry something like protein and drugs, how to deal with them to avoid the deactivation phenomenon?
Calculate the number of moles of NaHCO3 that reacted in each beaker. (The molar ratio between evolved CO2 and the bicarbonate is 1:1.
MgNH4PO4.6H2O loses H2O stepwise as it is heated. Between 40c and 60 the monohydrate is formed, and above 100 celcius the anhydrous material is formed.What are the phosphorus percentage of the monohydrate and of the anhydrate material?
A portable water heater transfers 225 watts of power to 5.5 L of water. How much time will it take the water heater to heat the 5.5 L of water from 22 to 40 degrees Celsius?
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