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Question- Write a balanced equation for the double-replacement precipitation reaction described, using the smallest possible integer coefficients. A precipitate forms when aqueous solutions of copper(II) sulfate and sodium hydroxide are combined. Do not include states such as (s) or (aq). It is not necessary for you to indicate which of the products is the precipitate.
Answer showing how to make each solution will get rated
a sample of ice 27.0-g at -13.0degc is combined with water of 114.0 grams at 80 degree celsius. compute the final
A water balloon with a volume of 260.0 L has launched at 20 degrees celcius at sea level where the atmospphereic pressure is 1.00 atm.
Problem- A buffer solution is prepared by dissolving 2.17 mol of HCN (Ka = 4.0 x 10-10) and 3.86 mol of KCN in enough water to make 1.08 L of solution. What is the pH of this solution? Answer to 3 significant figures.
Suppose that following the procedure of the Hess's Law experiment you had reacted a 0.950 g sample of MgO with 60.0 mL of 1.2 M HCl according to the reaction
Write the net ionic equation for a solution of calcium chloride and a solution of mercury(1) nitrate
Question- At 298 K and 1 atm, gas A travels an average velocity of 444 m/s. At the same conditions, gas B travels 274 m/s. Part 1 Which gas has a larger molecular weight, A or B
Problem- Write formulas for the following compounds, potassium permanganate, potassium manganate, calcium carbonate,lead(II) carbonate, iron(II)oxalate, sodium chromate, potassium dichromate,
Draw the structures of the E and Z stereoisomers of 1,4-diphenyl-2-butene-1,4-dione and label which is the cis and which is the trans
consider the reaction CO2+H2=CO+H2O.The equilibrium concentrations are [CO]= 0.050M, [H2]=0.045M, [CO2]=0.086M, and [H2O]= 0.040M. Calculate K .
how many moles of NaCl are there in 40.0 mL of 1.00 M NaCl solution. If a 50.L container with gas at 2.00 atm is compressed to 15.0 L what is the pressuree of the gas
Describe the technique you would use to deteremine the density of a 5 gram sample of gasonline or granular sugar at 20 degrees celcius and 1 atmosphere pressure
Problem- Consider the expression of the virial equation written in terms of the molar volume V and assume that the ideal gas law holds sufficiently well for the estimation of the second and third terms of the expansion.
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