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Which of the following types of crystalline solids has a low melting point, is generally insoluble in water, and is a nonconductor of electricity? Choose one answer. a. ionic b. metallic c. molecular d. all of these e. none of these
diamond powder (C) and BaCO3, separates the mixtures and recovers 1.75g sugar, 0.86g diamond powder and 2.29g BaCO3(s). Calculate the percent recovery and percent composition if the initial mixture they started with weighted 5.08g
Write molecular, total ionic, and net ionic equations for the reaction of AgNO3 and NaCl (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.)
A person ate 0.516 pound of cheese (an energy intake of 4130 kJ). Suppose that none of the energy was stored in his body. What mass (in grams) of water would he need to perspire in order to maintain his original temperature? (It takes 44.0 kJ to v..
Write an equation showing the reaction of methanol (CH3OH) with HClO 4 as a Brønsted-Lowry acid. Answer: CH3OH + HClO4 -> CH3OH2+ + ClO4- Why is it ClO4-?
Explain the reason why the six atoms that are involved in the peptide bond share a common geometric plane
What is the molecular weight of a volatile liquid, if .50 g of the liquid fills a 100 mL flask as a gas at 25 degrees C and 1.0 atm pressure
When 25.0 mL of unknown was passed through a jones reductor, molybdate ion (MoO4^2-) was converted to Mo^3+. The filtrate required 16.43 mL of .01033 M KMnO4 to reach purple end point
Predict the sign of the entropy change in the system for each of the following processes, and explain your answers. 1) AgI precipitates from a solution containing Ag+ and I- ions.
The rate law for the decomposition of ozone to molecular oxygen: 2O3(g) --> 3O2(g) and the mechanism proposed for this process is: O3 O + O2 and O + O3 --K2--> 2O2. Derive the rate law in terms of K1, K-1 and K2.
Sketch a molecular orbital energy level, show the symmetry for each one, and indicate how each orbital is formed from the group orbital of 2H atoms and the atomic orbitals of S atom.
You have a box of volume 1.00 liter into which you inject 2.65 g of NH3 at 600 K. What will be the final concentrations of NH3, N2, and H2 after equilibrium is established
What was the temperature change of the metal? C) Calculate the specific heat and the atomic mass of the metal. What is the metal?
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