Chemistry, 06.11.2020 02:20, jmanrules200
The concentration of many toxic chemicals is measured in ppm (parts per million). One ppm means 1 gram of the chemical per million grams of substance. How many grams of lead are contained in 24.5 lb of blood (average for humans) if the Pb concentration is 0.62 ppm? Please use dimensional analysis to find your answer.
Answers: 1
Chemistry, 21.06.2019 22:30, aubreykenzie686
Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?
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Chemistry, 22.06.2019 14:30, darkghostmist
What type of reaction fuels the processes seen here?
Answers: 2
Chemistry, 22.06.2019 21:30, kawaiiblurainbow
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration
Answers: 1
Chemistry, 22.06.2019 23:10, ArielA13
Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer
Answers: 3
The concentration of many toxic chemicals is measured in ppm (parts per million). One ppm means 1 gr...
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