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Rubidium chloride adopts the rock salt structure. Compute the radius of the rubidium ion if the density of RbCl is 2.76g/cm3 and it is assumed that the ions touch along the edges of the unit cell.
an 18-karat gold necklace is 75 gold by mass 16 silver and 9.0 copper. how many grams of copper are in the necklace? if
What are the transition metals in a periodic table ?
What five chemical tests would be performed to determine the difference between the starting alkene and the alcohol product of a hydroboration-oxidation reaction
Write the net ionic equation for the reaction between aqueous solutions of calcium chloride and sodium carbonate.
Phosphorus-32 has a half-life of 14.0 days. Starting with 2.00g of P^32, how many grams will remain after 70.0 days? Express your answer numerically in grams.
if 60.2 grams of hg combines completely with 24.0 grams br to form a compound what is the percent composition of hg in
A sample of material contains contains 20 mg of Iodine ^131. Calculate: A) The number of I ^131 atoms initially present. B) The activity in becquerels and curies.
a solution of 116 ml of 0.170 m koh is mixed with a solution of 230 ml of 0.240 m niso4. what precipitate
How many atoms of iron would be needed to react completely with 36 molecules of oxygen. How many molecules of oxygen would be needed to react completely 16 atoms of iron
determine calorimeter constant b) determine reaction enthalpy for the Zn / HCl reaction c) if ?fHo (ZnCl2 aq) is -482.2 kJ mol-1 and ?fHo (HCl aq) is -165.2 kJ mol-1, what is you percent error
the water couplingdioxygen evolving reactionpromoted by photosynthetic organisms involves the proton-coupled four
A perfect steam engine, operating at 400 celcius and discharging at 25 celcius and generating 5,000 kj in heat, accelerates a 1,000kg sled at a rate of 50m/s^2. how far can it push the sled
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