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Well, what do you think? If a tree falls in the forest and no one is around to hear it, is there sound? (See chapter-opening Factinos.) When one sings in the shower, the tones sound full and rich. Why is this?
If 85.00% reaction is required to obtain a noticeable color from the formation of the Cr(SCN)2+ ion, how many hours are required
Tell what type of chemical reaction is represented by the following chemical equation.
Calculate the volume of 1.94×10-3-M H2SO4 solution needed to provide 4.83×10-3 g of H2SO4.
Problem- Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is 2Mg(s) + O2(g) ? 2MgO(s).
The half-life of 137Ce is 30. years. If we have 150.000 g of 137Ce now, how many grams of Ce will remain in 150. years?
Calculat the freezing point of a solution containing 50.0 grams of kcl and 5500.0 grams of water the molal freezing point depression (kf) for water is 1.86 c/m
A mole of sodium hydroxide has a mass of 40 g. In order to prepare a .1M solution, how many grams of sodium hydroxide must be added to 500 mL of water
what volume of 0.366M Ni(NO3)2 is required to completely react with 55.8 ml of 0.500M Na2CO3.
Considering all the bonds in a molecule with trigonal bipyramidal geometry, what are the bond angles present
Write a balanced chemical reaction for the double replacement between aqueous aluminum nitrate and sodium phosphate. which product will be the precipitate
How much heat (in ) is required to warm 12.0 of ice, initially at -12.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01 .
The solubility of borax at roomp temperature is about 6.3 g/100 mL. Assuming the formula of borax to be Na2B4O5(OH)4 * 8H2O ( Molar mass = 381.37g/mol), What is the molar solubility of borax and what is the ksp of borax at room temperature
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