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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)
Which molecule: water or ethanol is "more" polar? (By "more polar" I mean which molecule will have a larger net dipole moment
what is the molality of ethanol in a solution made by dissolving 14.6g of ethanol, C2H5OH, in 53.6 g of water?
at 84 degrees C the total vapor pressure of a solution contains 1.2 moles A and 2.3 moles B is 331 mmHg. Upon the addition of another mole of B to the solution, the vapor pressure increasing to 347mmHg.
List at least three potentially hazardous features associated with concentrated sulfuric acid.
Which ions were present in the original solution? What are the net ionic equations for each reaction that occured?
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of BeF_2 please Enter the number of bonding electrons followed by the number of nonbonding electrons
Assume that liquid water forms item 5. Write a formula equation for the reaction that shows the physical states of all compounds?
110 mL of H_2O is initially at room temperature (22.0 degrees C). A chilled steel rod at 2.0 degrees C is placed in the water. If the final temperature of the system is 21.0 degrees C.
calculate the number of moles of KOH in 5.5mL of a .36 M KOH solution. what is the pOH of the solution?
Calculate the wavelength of light that would be required to excite an electron from the HOMO to the LUMO. Hint: Recall that (triangle)E=hv=hc/lambda, and that 1 eV=1.602 x 10^-19 Joules.
THe first equivalence point was reached after the addition of 15.25 mL of base. THe second equivalence point was reached after the addition of 30.98 mL. Find two values for the molarity of H3Y in the original sample.
The average concentration of strontium ion in seawater is 8.00 mg of strontium ion per kg of seawater. What is the molarity of the strontium ion if the density of the seawater is 1.025 g/mL.
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