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an orange juice drink sold in the supermarket is 10% by volume of pure orange juice. what volume (in mL) of pure orange juice is present in a 100 mL juice drink? what volume (in mL) of water is present in his juice drink?
Bismuth-213 is used in radiation therapy to treat leukemia, while strontium-89 is utilized to treat bone metastasis. Write the isotopic symbols of the two atoms. How many protons and neutrons does each atom have?
Correct IUPAC name of 2,4-Butanediol
. A sample of an unknown material was analyzed and was found to contain 28.1 g of silicon and 32.0 g of oxygen. What conclusion can best be made about this sample? (A) The sample must be SiO2, because the mole ratio is 1:2. (B) The sample must be Si7O8, because the ratio by mass reduces to 7:8. (C) The sample must be a mixture, because the masses of the elements are different. (D) The sample must be SiO, because the masses of the compounds are close to the same.
CS2 + O2 → CO2 + SO2
Write a balanced chemical equation the above equation.
using 12M HCl, NaHCO, and Na2HPO4, write the procedure for the preparation of 1.0 liter of 0.10M buffer at pH = 7.34 of NaH2PO4/Na2HPO4 buffer
using 12M HCl, NaHCO, and Na2HPO4, write the procedure for the preparation of 1.0 liter of 0.10M buffer at pH = 7.34 of H2CO3/NaHCO3 buffer
SEP Interpret Data At the salt factory described in Question 3, how could the manager use only temperature readings to determine when the salt in the vat has changed into one giant crystal?
Which element has atoms in the ground state with the greatest number of valence electrons?
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