How many silicon atoms are there in 1.00 g of silicon?

After TPA treatment patients must remain on bed rest for 

Analysis of a sample of Lucite shows that it contains 59.9% C, 8.06% H, and 32.0% O.  What is its empirical formula? (If you wish, you can show math work for possible partial credit.)

Chromium(VI)  is considered a hazardous, carcinogenic species, destruction of which may be accomplished by the process shown in the balanced equation below:             4 Zn (s) + K2Cr2O7 (aq) + 7 H2SO4 (aq) → 4 ZnSO4 (s) + 2 CrSO4 (s) + K2SO4 (aq) + 7 H2O (l) Which is the limiting reactant when 5.00 moles of Zn and 9.00 moles of H2SO4 react in excess K2Cr2O7 ?

Nikki and Kevin stated that most  patients do which two exercises incorrectly? [exercise1] and [exercise2] 

Which of the following is a connectionless transport layer protocol?

What is the concentration of HCl in the final solution when 65 mL of a 12 M HCl solution is diluted with pure water to a total volume of 150. mL?

Match the following terms with their definitions. Write ONLY the NUMBER that is in the column on the left of the definitions in the answer field next to each term.  (There are more definitions than needed.)     Terms:  a) solute- [ste] b) formula mass- [fm] c) precipitate- [ppt]    d) reducing agent – [redA]      Definitions:      1  sum of the average masses for all atoms represented in a chemical formula; for covalent compounds, this is also the molecular mass, in amu 2  weighted average of the atomic masses of all stable isotopes of an element, in amu 3  solution component present in a concentration less than that of the solvent 4  insoluble product that forms from reaction of soluble reactants 5  reaction between an acid and a base to produce salt and water 6  amount of substance containing the same number of atoms, molecules, ions, or other entities as the number of atoms in exactly 12 grams of 12C 7 process in which an element’s oxidation number is decreased by gain of electrons 8  experimentally determined value of the number of entities comprising 1 mole of substance, equal to 6.022 × 1023 mol−1 9  substance that brings about the reduction of another substance, and in the process becomes oxidized

Which of the following represents a metal displacement reaction?

Upon reaction of 38.6 g of  copper(III) iodide with excess lead(II) nitrate, 42.5 g of lead(II) iodide  was obtained according to the balanced equation: 2 CuI3(aq) + 3 Pb(NO3)2(aq)⟶ 2 Cu(NO3)3(aq) + 3 PbI2(s) What is the percent yield of lead(II) iodide?  (If you wish, show your work for possible partial credit.)