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a tortoise can run with a speed of 90 cms and a hare canrun 20 times as fast in a race they both start at the same
give the major product that would be obtained from treating an excess of the given compound with br2 at 125 degc
the specific rotation of r--glyceraldehyde is 87 if the observed specific rotation of a mixture of r-glyceraldehyde and
two rowers who can row at the same speed in still water setoff across a river at the same time one heads straight
acetylene gas ethyne hcch burns in an oxyacetylene torch to produce carbon dioxide and water vapor and the heat needed
a daredevil decides to jump a canyon its walls are equallyhigh and 15 m apart he takes off bydriving a motorcycle up a
dissolved iron precipitates from acidic solution by addition of oh- dissolved iron can be either feii or feiii for each
calculate e q and w if 800 moles of co2 g reacts with excess nitrogen gas according to the following reaction at 25degc
a student carried out a recrystallization and obtained a 105 yield of material with a broad melting point the material
write the lewis structure and the melting point of sodium bromide is this a molecular substance or an ionic
a certain substance x decomposes it is found that 50 of x remains after 100 minutes how much x remains after 200
the radius of the earths orbit around the sun assumed to becircular is 150 108 kmand the earth travels around this
a sample of h3a with a mass of 03606g was dissolved in water and titrated with 016m baoh2 solution245ml of base were
how do you write the net ionic equation for the precipitation of aluminum phosphate from aqueous
lightning occurs when there is a flow of electric charge principally eletcrons between the ground and a thundercloud
when 1 mol of glucose is burned 28025 kj of energy is released calculate the quantity of energy released to a person by
a train moving with a constant velocity of 256 mstravels 132 m north in 141 s and an undetermined distance to
if a face centered cubic unit cell has a volume of 1477 x 10 to the eighth power pm cubed and the ions at the corners
if you add a strong acid to a pure solution then a weak acid to another pure solution what does the ph levels in both
an athlete executing a long jump leaves theground at a 30deg angle and travels 680 m if this speed were increased by
to determine the concentration of a 250 ml acetic acid solution ka for acetic acid is 18 x 10-5 250 ml of 0200 m naoh
you buy a plastic dart gun and being a clever physics student youdecide to do a quick calculation to find its maximum
among the following pairs of conjugate acidbase which one is the best choice with mole ratio nearest to 1 to make a
two trees have perfectly straight trunks and are both growingperpendicular to the flat horizontal ground beneath them
a piece of copper wire is formed into a single circular loopof radius 13 cm a magnetic field is oriented parallel to