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1) Which of the following is/are covalent compounds? Choose all that apply.
a) BaBr2
b) K3P
c) NiCl4
d) Na2S
e) CCl4
f) P4O6
g) no correct response
2) Which period 2 nonmetal would normally be expected to form two covalent double bonds to two different atoms with no unshared electrons?
The activation energy of an uncatalyzed reaction is 88kj/mol . The addition of a catalyst lowers the activation energy to 60kJ/mol . a. Assuming that the collision factor remains the same, by what factor will the catalyst increase the rate of the ..
sample of tap water consists of water, fluoride ions, calcium ions, and several other dissolved ions. The ions are evenly distributed throughout the water. Which term or terms could be used to describe this sample of tap water
What is the maximum age of a sample that can be measured by 14C dating if the error of measurement is 0.5%? [NOTE: You may assumed that the half-life is 5700 years].
The half-life of cobalt-60 is 5.27 years. How many milligrams of cobalt-60 remain after 52.7 years if you start with 10.0 mg.
Utilize sketches of 2s and 2p orbitals to distinguish between (a) the radial wave function (b) the radial distribution function and (c) the angular wave function.
Calculate the density of air at the experimental conditons identified in part A C) Calculate the mass of air in the flask before the liquid was added.
In our kinetics lab we used sodium thiosulfate as a mild reducing agent. Explain why this reagent would be a reducing agent. Also, what about potassium dichromate K2Cr2O7. Why is it such a good oxidizing agent.
In the information of smog, nitrogen and oxygen gas react to form nitrogen dioxide. How many grams of NO2 will be produced when 2.0 L of nitrogen at 840 mmHg and 24 degrees C are completely reacted
Important information about Organic Chemistry, The most reasonable formula for a compound demonstrating M+ =101 with a minor M+1 peak is
Explain how you know that this is true. Make sure to describe which atoms are gaining and losing electrons and explain why this happens.
What is the molarity of 0.0250 liters of a solution containing 7.50 grams of a compound whose molar mass is 152.8 g/mole
What volume of O2 at 684mmHg and 37degree celsius is required to synthesize 22.0 mole of NO2.
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