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what mass of nacl needs to be added to 500 g water to make a solution having a mole fraction of solute of
suppose a household product label says it contains sodium hydrogen carbonate sodium bicarbonate how would you test this
when the camphor is ignited by the electrical current and the combustion occurs the temperature is high enough that the
a 835 kg mixed-mineral sample containsnbspchromitenbspfecr2o4 as thenbsponlynbspchromium-bearing ore the sample is
solutions a and b are separated by a selectively permeable barrier over time the level of fluid on side a increases
the oldest oceanic crust is about 200 million years old the average age of continental crust is about 2 billion years
explain how you would calculate the ecological footprint of the state that you live in if you knew the average
lactose is a disaccharide what two monosaccharides make up a molecule of lactosewhat type of macromolecule is lactase
one strand of a single dna helix is labeled red while the other strand of the same dna helix is labeled blue this
in a species of fish fin shape is controlled by a single gene that has only two alleles in a generation of 185 fish the
sickle cell anemia is an autosomal recessive disorder using s and s to represent the alleles what is the genotype of a
details notes about the heart taking in consideration of important point like definationsdescriptionlocation layers of
a a deposit of 1000 earns a continuous force of interest given by 006tnbspfor the first three years tnbspis time in
after years of overhunting environmental scientists have reintroduced beavers to yellowstone national park the initial
an air conditioning system can circulate 480 cubic feet of air per minute how many cubic yards of air can it circulate
two competing airlines make a new marketing plan charging passengers a fixed amount and then a rate per mile
a clothing store buys shorts for 24 less 40 for buying over 50 pairs and less a further 16 23for buying last years
a merchant realizes a markup of 42 by selling an item at a markup of 375 of cost the merchants overhead expenses are
a kitchen set cost the dealer 1800 less 375 18 carries a price tag with a regular selling price at a markup of 120 of
the exiter exchange company received an invoice dated september 20 for 16000 less 25 20 terms 510 230 n60 exiter made a
this is a sinking fund problem at the end of a two 2 year period we want to have 2000 in a sinking fund account we
the logarithmic function y logx 79 can be used to determine the magnitude y of an earthquake given an intensity
the population of a particular city is given by the function pt 27400107t where t is the time in years and pt is the
find the x-intercept and the y-intercept without graphing write the coordinates of each intercept 8x - 34 13y
under the interpretation of multiplication we are using axb always means a groups with b in each group or alternatively