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Density of gold is 19.31 g/cm^3Density of platinum is 21.43 g/cm^3
If equal masses of gold and platinum are transferred to equal volumes of water in separate graduated cylinders, which cylinder would have the greatest volume change?
A researcher found that 11.56 grams of lead sulfide, PbS, were formed when 10.0 grams of lead reacted with 1.56 grams of sulfur, when 10.0 grams of lead reacted with 3.00 grams of sulfur, and when 18.0 grams of lead reacted with 1.56 grams of sulf..
What is the rate constant for the reverse reaction at the same temperature?
In the confirmation test that you performed for silver (I) ion, addition of nitric acid, HNO3, to a solution containing Ag+ produced the precipitate AgCl. Where did the chloride ion come from
A 2.000 ton block of aluminum at room temperature (22 degrees celsius) is struck by lightning. The lightning transfers 8.000 x 10^6 kJ of energy to the block
An aqueous solution is 36.0 % by mass potassium bromide, KBr, and has a density of 1.33 g/mL. determine the mole fraction of potassium bromide in the solution?
when strongly heated magnesium sulfide formed a crystalline deposit on the walls of a sealed reaction vessel. metallic
The nature of the intermediates in E1 and Sn1 reactions are carbocations. If the molecule doesn't follow that formula then it has either double bonds or rings or both.
Calculate the change in pH to 0.01 pH units caused by adding 10. mL of 2.17-M NaOH is added to 470. mL of each of the following solutions.
the fact that the relative reactivity of C-H bonds of an alkane for free-radical chain halogenation is tertiary > secondary > primary?
Suppose that the atomic mass unit (amu) had been defined as one-twelfth of the average mass of an atom of nitrogen instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of potassium be on this new scale
The scale of an image indicates that the length of the x-axis and the y-axis is each 4.00nm. Knowing this, determine the radius, in meters of asingle praticle of carbon.
Alkenes, choose which statement best dis cribe alkenes from the followings. (a) are relatively polar cpmpound (b) have lower boiling points than alcohols of similar molecular weight. (c) are reasonably soluble in water. (d) both A and B (e) none of..
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