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Question- There is a product on the market called a "Wall O' Water". It is a doubly thick cylinder made of polyethylene which is often colored green, blue, or red. This cylinder is about 1 foot in diameter and has cells that are to be filled with water. The directions say to set these out in the garden before the last frost; after about 4 days, you can plant frost sensitive plants without worrying about them freezing to death. Do these things work or are they a "joke" equivalent to "Dehydrated Water" What are the physical principles behind how they might work? (Hint- there is both thermodynamic as well as light absorption considerations.
Please show how you obtained the answer
Question- What problems would occur if the urea were added to a strongly acidic solution. Note- What happens to the nucleophile in strong acid
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. Write a chemical equation for the neutralization reaction that occurs.
Do carbon dioxide and water have the same molecular geometry? If not, what attributes cause these molecules with similar formulas, AB2, to have different geometries
Draw the organic product(s) of the reaction of p-methylbenzoic acid with LiAlH4, then H3O+ in the window below. If no new products are formed, tell OWL by drawing ethane, CH3CH3.
How many grams of NaCl are needed to make a 5.0% w/v saline solution having a total volume of 300.0 mL
What is the final pressure in the container if 705 mL of helium gas at 205 mm Hg is compressed to 255 mL?
a graduated cylinder contains 154 of water. a 15.0 piece of iron density 7.86 and a 18.0 piece of lead are added.
A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2), and 12.50 g of acetic acid to enough water to make 500 mL of solution. What is the pH of the buffer?
How much heat energy, is needed to convert 64.0 grams of ice at -18.0 degrees celcius to H2O at the temperature of 25.0 degrees celcius? Express your answers in kilojoules
Question- The following ions contain the same number of electrons. Rank them in order of decreasing ionic radii.Ba2+, I-,Cs+,Sb3-,Te2-, La3+
Cells carry out anabolic as well as catabolic pathways with some enzymes functioning in both types of pathways. a. Define why these enzymes catalyze near equilibrium reactions. b) Define why opposing anabolic and catabolic pathways must have diffe..
Problem- You are given a solution that is a mixture of Co(NO3)2 (aq) and AgNO3 (aq). Devise a procedure using anions to separate the metal ions from each other. You must include a balanced chemical equation in your response.
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