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Iodine-131 decays to produce xenon-131. Which type of nuclear radiation is emitted in this reaction
a 251 mL sample of oxygen is collected over water at 25 deg C and 760 torr pressure. If the vapor pressure of water as 25 deg C is 23.8 torr, what is the pressure of the dry gas alone?
Suppose that the observed melting point range of a solid was originally 150-160 °C, but this became 145-145.5 °C after recrystallization. How might you account for this observation
Why does BrO2 have a free radical? explain the bonding that happen, and why it happens. Why does NO have a free radical? I know it's because there in one unpaired electron
If 2.50 mol of copper and 5.50 mol of silver nitrate are available to react by single displacement, identify the limiting reactant.
What was the concentration of the original hydroxylamine solution? What is the pH at the equivalence point? Which indicators should be used to detect the endpoint of the titration?
why does bromine add faster to a distributed double bond than a monosubstituted double bond to produce dibromide
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat n=4 as the valence shell in all cases.
an unknown rectangular substance measures 3.6 cm high 4.21 cm long and 1.17 cm wide. if the mass is 21.3g what is this
What is the rate constant (with units) if the rate of reaction is 1.23Ms- and the concentration of the Ru cluster is .050 M and the azide concentration is .025 M?
What structure is responsible for the base peak of a cyclohexene and an unsaturated ketone.
find the concentration and ph solution.1.what is the concentration of cu2 in a solution that is 0.10 m cunh342? kf 1.2
An aqueous solution containing 21.6 mg of vasopressin in 100.0 mL of solution has an osmotic pressure at 25.0 oC of 3.70 mmHg. What is the molecular weight of the hormone?
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