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the boron trifluoride molecule is depicted as having three single bonds and an electron-deficient central born atom use
need help with these aromaticity questions please explain briefly1 in an electrophilic aromatic substitution reaction
green color is usually made by combining blue and yellow does the green color of mampm uses the same yellow and blue
the density of a 0448-m aqueous solution of k2cro4 is 1063 gml what is the molarity m of this solution the molar mass
while performing part of an experiment a chemistry student found that her boiled tap water 250 ml required the addition
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construct an electron-dot diagram for carbonate ion draw structural formulas of the three resonance possibilities for
which one in each pair of elements - boron and carbon and carbon and nitrogen-will have higher second ionization energy
a water sample contains the pollutant chlorobenzene with a concentration of 15 ppb what is the molarity of this
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
in the laboratory you dissolvenbsp132nbspg ofnbspsodium bromidenbspin a volumetric flask and add water to a total
1 substituents on an aromatic ring can alter both the stereoselectivity and reactivity of an electrophilic aromatic
scenariopeter a 35-year-old was brought via ambulance to the emergency department after collapsing on the street he was
the plans for several new housing developments call for a large forest to be divided into four distinct sections each
living organisms acquire energy and materials in order to maintain homeostasis for instance in wound healing explain
question what specific part does the dialysis tubing represent what is this parts
discuss the global pattern of longevity life expectancy include many of the factors behind the growth in some countries
1 list two congenital renal malformations and explain the significance of adult polycystic kidney disease2 discuss
lets say your substance has a mass of 145 grams and a volume of 63ml knowing these values calculate the density submit
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explain how you would calculate the ecological footprint of the state that you live in if you knew the average