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Describe the residue left on the filter paper after you have filtered the water, sand, and sodium carbonate mixture. What do you think this residue contains?
Describe the appearance of the filtrate that flowed into the evaporating dish. Could this filtrate be a mixture? If so, does it appear to be homogeneous or heterogeneous?
Describe the residue that remains after you evaporate the water from the filtrate in Step 17. What do you think this residue contains?For ice describe the general appurtenance of dry ice in the beaker
Describe what happens when you place a burning wood slant into the beaker containing dry ice.
What evidence do you have that carbon dioxide gas is present in the beaker?
Did the carbon dioxide in the dry ice undergo a physical or chemical before you inserted the burning splint into the beaker? Briefly explain.
Anyone can tell me how to solve it step by step so that I will be able to understand what is going on?
Explain the titration requires 32.75 ml of the standardized NaOH solution to reach the endpoint. Explain what is the molar concentration of the hydrochloric acid solution
which of the following atoms with the specified electronic configuration would have the lowest first ionization energy? (a) (He)2s^2 2p^3 (b) (ne) 3s^2 3p^4 (c) [Xe]6s^1 (d) [Xe]6s^2 4f^14 5d^10 6p^1
A professional scientist measures out eaxctly 100.00cm3 of a liquid, and finds that its mass is exactly 80.000g. What is the density (in g/cm3) of the liquid
aluminum and oxygen react to form aluminum oxide by the equationals o2gnbspnbsp regnbspnbsp al2o3sin a certain
Derive the general expression for the work per kilomole of a van der waals gas in expanding reversibly and at a constant temperature
What is the density of a substance if a 2.50mL sample has a mass of 0.880g at room temperature? ( show calculations) What is the specific gravity of the substance?
please solve if 15.0 mL of 4.5M NaOH are diluted with water to a volume of 500.0 mL what is the molarity of the resulting solution
Find the Concentration of KHP, standardized NaOH, and HCI So I have to find concentration of 3 solutions. Let's assume that I get a NaOH which has concentration of 1.0M How am I suppose to calculate the mass of KHP needed? Could someone tell me th..
Determine the boiling point of a solution of 22.5 g of fructose, C6H12O6 , in 294 g of phenol.
for the reaction P4+S8=P4S10 what is the maximum amount of P4S10 which could be formed from 17.02 g of P4 and .128 mol of S8?
Problem- What volume is milliliters of 9.950 x 10-2M sodium hydroxide solution is required to reach the equivalence point in the complete titration of a 17.0mL sample of 0.114M phosphoric acid
Compute oxide spontaneously absorbs water vapor from the atmosphere at 20 degrees Celsius via the following reaction CaO(s) + H2O(g) arrow Ca(OH)2(s)
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