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Problem- In the experiment of classifying matter by properties what common substance can be found in all three physical states under various atmospheric conditions? Give a common name. For each state.
Classify each of the following as either an element, a compound, or a mixture:
Aluminum
Milk
Chlorine
Carbon monoxide
Soda pop
Sodium chloride
Write your solution in appropriate format and provide references
Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water. 3 NO2(g) + H2O(l) -→ 2 HNO3(l) + NO(g) If 927 L of NO2 gas react with water, what volume of NO gas will be produced? Assume the gases are measured under the same c..
Consider the following reaction: 3CaCO3 + 2FePO4 = Ca3(PO4)2 + Fe2(CO3)3 a) which of the following reagents is the limiting reagent?
not enough air is pumped into a raft to completely fill it out. the atmospheric pressure is 14.7 psi. what is the pressure of the air inside the raft?
The air tanks used by a certain fire department each contain 25.0 l of air at a pressure of 200.0atm and a temperature of 293 k. Assume the average fire fighter exhales 0.500l of air per breath at a temperature of 310.0 k
calcium phosphide reacts with water to produce calcium hydroxide and phosphine. a if you start with 15.0 g of calcium
hydrogen gas has a henrys constant of 7.8 x 10-4 molkg . bar 25 degrees celcius when dissolving in water. if the
how many of joules of heat are needed to raise the temperature of 10.0g of aluminum from 22 degrees c if the specific
Lithium iodide has a lattice energy of and a heat of hydration of. Determine how much heat is evolved or absorbed when 40.0 of lithium iodide completely dissolves in water.
Converting Grams and Moles, To do this assignment, use your calculator to do the calculations required. Then invert the calculator to read the message word. Insert the message word into the appropriate space in the statement
What is the minimum volume of 2.85 mol/L HCl(aq) required to dissolve 12.1 g Zn metal? The atomic weight of Zn is 65.39 g/mol. The unbalanced chemical equation for the reaction is Zn(s) + HCl(aq) --> ZnCl2(aq) + H2(g)
compare the purity/identity of the samples from the extraction with the purity of the samples obtained from column chromatography.
A solution is prepared by mixing 70.0 mL of 0.010 M BaCl2 and 175 mL of 0.080 M K2SO4. What are the concentrations of barium and sulfate ions in this solution? Assume only SO42- ions (no HSO4? ) are present.
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