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Below is a list of chemicals with their oral LD50 in mg/kg (rats). Select the substance that is MOST toxic to rats. DDT, 87 mg/kg malathion, 885 mg/kg carbaryl (sevin), 307 mg/kg parathion, 3 mg/kg
considering the given reaction csco2g-gt2cogreversible heterogeneous reactionnbspthe total pressure of the system is
1. Commercial hydrochloric acid, HCl, is 12.0 molar. Calculate the mass of HCl in 250.0 mL of the solution. 2. Why do sugar cubes dissolve more slowly. than granulated sugar in water.
Explain why is the reaction of alkenes with HCl (a rapid, simple reaction) NOT valuable as a characterization reaction, but reaction with Br2 is a good characterization reaction. Explain how does a solution of hydrochloric acid differ in appearanc..
Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is CH2O.
A beaker with 100 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M . A student adds 6.50 mL of a 0.260 M HCl solution to the beaker. How much will the p..
Find out how many grams of protein, FAT, and carbohydrate are present in a single serving of each item; then calculate the kilocalories that are present in each.
mg3n2 6h2o rarr 3mgoh2 2nh3when 2.00 moles of h2o react how many grams of nh3 are
Which substance posses the larger standard enthalpy.
the structure of the human genome was elucidated in 2000. many scientists and business professionals describe the
Which of the following statements correctly define SI base units and derived units in science? SELECT ALL THAT APPLY. 1. Derived units are nonmetric units. 2. The base units are the same as the decimal prefixes. 3. All that base units are metric u..
A scientist wants to make a solution of tribasic sodium phosphate, Na3Po4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 425 mL of a solution
A saturated solution of BiI3(s) is found to have an I- concentration of 3.96E-5 M. What is the value of Ksp for BiI3?
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