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What do patients with cystic fibrosis die as a results of?
About 6 x 10^9 g of gold is thought to be dissolved in the oceans of the world. If the total volume of the oceans is 1.5 x 10^21 L, What is the average molar concentration of gold in seawater
question if a formic acidformate buffer is 0.031 m in formic acid and has a ph of 3.91 what is the molar concentration
when ethane c2h6 reacts with chlorine cl2 the main product is c2h5cl but other products containing cl chlorine such as
B2H6 + 3O2= B2O3+3H2O ; delta H=-2035 KJ how much heat is released when a mixture of 7.35 g B2H6 and 2.60 g O2 is burned?
A certain sample of coal contains 1.2% sulfur by mass. While the coal is burned the sulfur is converted to sulfur dioxide (SO2). To prevent air pollution, SO2 is treated with calcium oxide (CaO) to form calcium sulfite (CaSO3) as shown in the reac..
Choose the answer which presents the chemical formulas for two substances in order of decreasing melting point (highest melting point first) and gives a valid reason for this order.
If the final temperature is 23.5 deg C, what was the unknown volume? (no heat was lost to the surroundings, d of water is 1 g/mL)
If solutions of potassium carbonate, copper(II) chloride, and lead(II) nitrate are each added to a beaker, what is the net ionic equation for the precipitation reaction that occurs
What is the source of gas? Write a balanced chemical equations for all of the reactions in which metal was observed to react. Compare the reactions involving hydrochloric acid with those involving sulphuric acid.
What characteristic H NMR absorption would be expected in the aliphatic region for 9-hydroxyfluorene
State a mechanism for the formation of 1, 3-butadiene from 3-sulfolene or cyclopentadiene from dicyclopentadiene
Use Le Chatelier's Principle and the weak acid dissociation equilibrium to explain how the addition of NaOH will completely neutralize an unknown weak acid at the equivalence point in a titration. Consider that hydroxide ion reacts directly with H..
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