Chemistry

Propose structures for compounds that meet the following descriptions: (a) C_(5)H_(8) with IR absorptions at 3300 and 2150cm^-1

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. The chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. The chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production. c. Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. Chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone.

6. How can you increase the rate at which a solution is mixing (four ways)?

A 32.0 g sample of quartz, which has a specific heat capacity of 0.730Jcdot g^-1cdot ^circ C^-1 is dropped into an insulated container containing 150,00 g of water at 15.0^circ C and a constant pressure of 1 atm.The initial temperature of the quartz is 90.8^circ C Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has 4 significant digits. square ^circ C

In organic molecules, an oxygen atom will normally form how many bonds? 4 3 1 O

8. 30 g of Rb_(2)C_(2)O_(4) are dissolved in 0.39 L of water.What is the concentration of this solution in molarity?

What must be balanced on the left side of an equation with the atoms on the right side of the equation? total number of molecules number of atoms of each element total number of compounds free electrons

What did you like the most about One Water? Why did you like it? __

A student is using these conversion factors to convert from 2.5 grams of the given reactant to the mass of product. Identify any conversion factors that would NOT work. Tap to select or deselect an answer. Select all that would NOT work. 2Al+3CuCl_(2)arrow 2AlCl_(3)+3Cu 2.5gAltimes (1molAl)/(27.0gAl)times (3molCu)/(2molAl)times (63.5gCu)/(1molCu) Na_(2)O+H_(2)Oarrow 2NaOH 2.5gH_(2)Otimes (1molH_(2)O)/(18.0gH_(2)O)times (1gH_(2)O)/(2gNaOH)times (40.0gNaOH)/(1molNaOH) 2Cu+Sarrow Cu_(2)S 2.5gCutimes (1molCu)/(63.5gCu)times (2molCu_(2)S)/(1molCu)times (159.2gCu_(2)S)/(1molCu_(2)S)

A student is using these conversion factors to convert from 2.5 grams of the given reactant to the mass of product. Identify any conversion factors that would NOT work. Tap to select or deselect an answer. Select all that would NOT work. 2Al+3CuCl_(2)arrow 2AlCl_(3)+3Cu 2.5gAltimes (1molAl)/(27.0gAl)times (2molCu)/(3molAl)times (63.5gCu)/(1molCu) N_(2)+3H_(2)arrow 2NH_(3) 2.5gH_(2)times (1molH_(2))/(2.0gH_(2))times (2molNH_(3))/(3molH_(2))times (17.0gNH_(3))/(1molNH_(3)) 2Cu+Sarrow Cu_(2)S 2.5gCutimes (1gCu_(2)S)/(2gCu)times (63.5gCu)/(1molCu)times (1molCu_(2)S)/(159.2gCu_(2)S)