I am currently a Chemistry Ph.D. candidate. I love physics and math as well. I enjoy cooking and hiking in my free time!
Reduce the equation to one of the standard forms, classify the surface, and sketch it.$ x^2 + y^2 - 2x - 6y - z + 10 = 0 $
Explain the trend in the lattice energies (shown here) of the alkaline earth metal oxides.
Explain the observed trend in the boiling points of these compounds.H2Te -2 CH2Se -41.5 CH2S -60.7 CH2O 100 C
A sealed flask contains 0.55 g of water at 28 C. The vapor pressure of water at this temperature is 28.36 mmHg. What is the minimum volume of the flask in order that there is no liquid water present in the flask?
Given that the heat of fusion of water is -6.02 kJ>mol, the heat capacity of H2O(l) is 75.2 J>mol # K, and the heat capacity of H2O(s) is 37.7 J>mol # K, calculate the heat of fusion of water at -10 C.
Balance each redox reaction occurring in basic aqueous solution.a. H2O2(aq) + ClO2(aq)-ClO2-(aq) + O2(g)b. Al(s) + MnO4-(aq)-MnO2(s) + Al(OH)4-(aq)c. Cl2(g)-Cl-(aq) + ClO-(aq)
30 g of NaOH was dissolved in 80 mL of water. The temperature increased from 27 degrees celsius to 70 degrees celsius. Estimate the enthalpy change for the dissolution of NaOH
Which element is oxidized, and which is reduced in the following reactions? (a) N21g2 + 3 H21g2 ¡ 2 NH31g2 (b) 3 Fe1NO3221aq2 + 2 Al1s2 ¡3 Fe1s2 + 2 Al1NO3231aq2 (c) Cl21aq2 + 2 NaI1aq2 ¡ I21aq2 + 2 NaCl1aq2 (d) PbS1s2 + 4 H2O21aq2 ¡ PbSO41s2 + 4 H2O1l2
Stacey plans to invest 7500 dollars. part at 4 percent interest and the rest at 5 percent simple interest. what is the most she can invest at 4 percent and still be guaranteed at least 325 dollars per year?
Arrange the ions K+, Cl-, S2-, Ar in order of increasing size (list smallest first).
Which equation represents the heat of formation, DeltaHf, for MgCl2?
In aerial navigation, directions are given in degrees clockwise from north. Thus, east is 90°, south is 180°, and so on, as shown in the figure. A plane flies in a direction of 101° from airport A. After a time, it turns and proceeds in a direction of 253°. Finally, it lands at airport B, 170 miles directly south of airport A. How far has the plane traveled?
