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how much heat in kilocalories is required to melt 10mole of isopropyl alcohol rubbing alcohol molar mass 600gmol the
a sample of a substance known to contain chloride ions was dissolved in distilled water in a 1l volumetric flask then
mercury compounds are poisonous but mercury ions can be removed from a solution by precipitating insoluble mercury ii
1 define and provide an example of linear equation in three variables does the given linear equation in three
an ideal battery of emfnbspnbsp 16 v a resistor of resistancenbsprnbsp 44 omega and an uncharged capacitor of
a space traveller has landed on the sruface of an unknown planet he drops a small lead all from the top of his space
according to a simplified model the hydrogen atom consists of a proton circled by an electron orbiting at a radius of
a 158 g strip of zinc metal was placed in 1000 ml of silver nitrate agno3 aq when the reaction was complete the strip
solid potassium chlorate kclo3 decomposes to produce solid potassium chloride and oxygen gas what volume of oxygen gas
adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency a
an overworked teacher placed ethanol and ethyl bromide in two different bottles but forget to label them what simple
a student recovers 300 mg of trimyristin from her nutmeg sample if this represents 20 recovery how much nutmeg did she
a system consisted of 50 mg of an organic compound dissolved in 100 ml of water solvent a compare the effectiveness of
a dog of mass 10 kg is standing on a flat 10 m long boat so that is 20 meters from the shore it walks 8 m on the boat
particle of masses 2 kg 2 kg 1 kg and 1 kg are placed at the corners a b c d of a square of side l as shown in the
explain what is meant by the terma natural
why is it more difficult to walk on a sandy road than on a concrete road please give
why is mirage formedanbspequal heating of different parts of the atmosphereb magnetic disturbances in the atmospherec
a 15000nbspkg loader traveling east at 20nbspkmh turns south and travels at 25nbspkmh calculate nbspnbsp nbspthe change
you are asked to determine if phenol would be better to use in barbeques than propane to test this you burn 120 mg of
an unknown hydrocarbon is was burned to produce 6769 grams of co2 and 1385 grams of h2o the molecular mass is 78 what
apart from differences in amino acid ligands what is the fundamental difference between the way in which the cytochrome
calcium carbonate reacts with hydrochloride acid to produce calcium chloride co2 and water if 50 grams of calcium
liquid c when co distilled with water at 99c has vapor pressure of 12 torr at sea level the distillate contains 15g