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Classify each reaction. (33) Na2CO3(s) + SiO2(s) → Na2SiO3(l) + CO2(g) (34) 2 Mg(NO3)2(s) → 2 Mg(NO2)2(s) + O2(g) (35) 3 HNO2(aq) → 2 NO(g) + NO3-(aq) + H3O+(aq) (36) BaCO3(s) → BaO(s) + CO2(g) (37) 2 Eu2+(aq) + 2 H+(aq) → 2 Eu3+(aq) + H2(g) (38) [Ag(NH3)2]+(aq) + 2 CN-(aq) → [Ag(CN)2]-(aq) + 2 NH3(aq) (39) MgO(s) + 2 HCl(aq) → MgCl2(aq) + H2O(l) (40) CaO(s) + SO2(g) → CaSO3(s) (41) 2 NO(g) + O2(g) → 2 NO2(g) (42) N2(g) + 2 O2(g) → 2 NO2(g) For more Details.
A sample of gas occupies 250. mL at 37 degrees celsius and 730. torr; what volume would the gas occupy at standard conditions?
How much heat is required to raise the temperature of 215g CH3OH (l) from 20.0 to 30.0 degrees C and vaporize it at 30.0 degrees C
A vinegar sample contained 4.60% acetic acid . How many mL of 0.450/v sodium hydroxide would be required to titrate 25.00 mL of hte vinegar sample. Assume the density of the sample to be 1.00 g /mL
in an experiment 99.0 g of aluminum with a specific heat of 900 jkgmiddotk at 93.0degc is mixed with 88.0 g of water
change in enthalpy at 25 C and 1 atm for the reaction of 5.00 mol of elemental iron with excess oxygen gas?
1)MgBr2 and Pb(NO3)2 2)CuSO4 and H2S write ionic equation (molecular reactions, ionic equations and net ionic equations indicating the spectator ions in these reactions)
The concept of free energy allows prediction of spontaneity of a process by considering the changes in ________ and ________ during the process.
KOH(aq)+ CoCl2(aq) --> KCl + Co(OH) what are the states of matter for the products?
Assuming that the atoms are spheres and the radius of each sphere is 1.23 Å, what is the volume of one atom in Å3? (Vsphere = 4/3?r3.)
What and why structural features do cyanide and thiamine have in common that makes them both capable of catalyzing the benzoin condensation
For a weak acid (e.g., CH3COOH) that is titrated with a strong base (e.g., NaOH), what species (ions/molecules) are present in the solution at the stoichiometric point
Calculate the VOLUME (mL) of liquid H2O formed if the reaction goes to completion and you condense the water vapor.
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