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State an overall balanced equation for the reaction that takes place when aqueous nickel (ll) chloride reacts with zinc to make zinc chloride and nickel.
50.0 mL of an HCl solution with a pH of 3.5 neutralizes 200.0 mL of a Ca(OH)2 solution.What is the molarity of the Ca(OH)2 solution?
Assuming the waste heat of the engine provides all the heat necessary to melt the iceberg, how much work can this do?
the first-order isomerization reaction cyclopropane ? propene has a rate constant of 1.10 times 10-4s-1 at 470degc and
The baloon rises to an altitude of 20,000 m, where atmospheric pressure is 67 mmHg and the temp is 210 K. What is the volume of the balloon at 20,000 m
Radioactive element X decays to element Y with decay constant -0.3. Y decays to stable element Z with decay constant -0.2. Explain what is the system of differential equations for the amounts x(t), y(t), z(t) of the elements X, Y, Z respectively, ..
a 0.374g sample of a metallic element m is completely dissolved in 100ml of 0.500n sulfuric acid. the liberated
if the specific heat of water is 4.18 jg x celsius for a mass of 125 g of water which increased in temperature by .121
The equilibrium constant at 25°C is 8.9 × 10-12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established.
assuming that the 3s- and 3p-orbitals will form molecular orbitals similar to those formed when 2s- and 2p-orbitals
question what is the ph of a solution containing 0.010 hcl plus 0.040 kclo4 with an activity coefficient of h
if a lighter contains 2.5 ml of liquid butane den 0.8 gcm3 how much potential energy does the lighter contain
We wish to prepare a buffer of pH 10 using common laboratory reagents. How many mL of 6M HCl would we have to add to a solution prepared by adding 100 mL of 15M NH3 to 200 mL of water?
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