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after a forest fire a thunderstorm causes a landslide to cascadeinto a local reservoir for months the light
ch4 methane boils at -160c nh3 ammonia boils at -33c h2o boils at 100c h2s hydrogen sulfide boils at -60ca explain the
a car with mass of 10000 kg accelerates from 0 ms to 400 ms in 130 s ignore air resistance the engine has a 22
a 995 kg monkey is hanging by one arm from a branch and swinging on a vertical circle as an approximation assume that
how many grams of magnesium metal must be burned to release 500 kcal of heat according to the following reaction 2 mg s
at an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis people sit in
when 1 mole of liquid ethanol c2h5oh is burned it produces carbon dioxide gas liquid water and 1367 kj of heata write
a block of mass 20m can move without friction on a horizontal table this block is attached to another block of mass 38m
at 25degc 1000 cal of heat is applied to each of 300 g of copper and 500 g of aluminum a which metal will absorb the
how much heat energy is needed to raise the temperature of a 050 l of ethanol d 079 gml from 200degc to 500degc
freezing point depression constant for camphor is 377 def cm if 225 mg of caffeine dissolved in 75g of camphor lowers
an outfielder throws a 0150 kg baseball at a speed of 360 ms and an initial angle of 300deg what is the kinetic energy
1 for which one of the following equations is hdegrxn equal to hfdeg for the productfor which one of the following
a shell is shot with an initial velocity v0 of 18 ms at an angle of 0 60deg with the horizontal at the top of the
vapor pressure of water at 25 deg c is 24 mmhg and that of pure methanol is 120 mmhg what is the vapor pressure above
predict whether the reaction below is product-favored or reactant-favored by calculating delta gdegree from the entropy
given the following reaction calculate the enthalpy entropy and free energy changes for this reaction at 25 degrees c
the standard molar entropy for br2g is 24546jmolk at 25 degrees celsius given that delta s10458jk for the dissociation
pu-239 nuclear mass of 2390006 amu decays by alpha emission to u-235 nuclear mass of 2349934 calculate how much energy
consider formic acid hcooh ka 19 x 10-4 and its conjugate base hcoo- with a kb of 53 x 10-11write a net iconic equation
a private pilot correctly sets her altimeter to reflect a reported altimeter setting of 1012mb at her departure airport
use the following diagram to write the sequence of orbitals from the lowest energy to the highest energy6s 6p5s 5p 5d
a typical scuba tank has a volume v of 10 liters when fully charged it contains compressed air at a pressure of 200
a professional race car driver buys a car that can accelerate at 59 ms the racer decides to race against another driver
you were so intrigued that you wanted to re-do the experiment at home to show your mom how evidence of chromosomal