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Look around you, and find 5 examples of matter that you encounter every day. For each example, detail the physical state and whether it is a pure substance or a mixture. List one physical and one chemical property of each of the substances selected.
Remember to provide 5 examples of everyday matter, detail the physical state, whether it is a pure substance or a mixture and then provide one physical and one chemical property of each substance.
for a locus with two alleles a and a in a population at risk from an infectious neurodegenerative disease 16 people had
Calculate the final concentration of a sodium hydroxide solution prepared by adding 10.00mL of 5.325M sodium hydroxide stock solution into a 250.00mL volumetric flask and then filling to the mark with de-ionized water.
A 9-mm Xian short-barrel experimental pistol is fired and the reacting, exploding gases push the bullet down the barrel of the gun. The pressure is recorded as the bullet accelerates to the exit.
q1. calculate the number of moles of ammonia absorbed by a boric acid solution if 3.25 ml of 0.0025 m h2so4 were needed
Methyl orange is an indicator that changes color over a range from pH = 3.1 to pH = 4.4 . What is Ka of methyl orange
if 26.8 grams of lithium hydroxide is mixed with 250ml of water to form a solution which is then reacted with boron
The barometric pressure in a cavern was measured using a mercury barometer. A value of 28.2 inches of Hg was obtained. What's this pressure in
a solution of ammonia and water contains 2.40times1025 water molecules and 5.50times1024 ammonia molecules. how many
Calculate the mass of NaCl when 20.0 g of sodium is used. sodium and chlorine react according to the equation : 2Na +Cl2 = 2NaCl
At 700.°C, the total pressure of the system is found to be 3.63 atm. If the equilibrium constant KP is 1.52, calculate the equilibrium partial pressures of CO2 and CO.
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
a liquid unknown was found to be inslouble in water amp soluble in cyclohexane amp alcohol the unknown was found to
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