In the first-order decomposition of dinitrogen pentoxide at 335 K,

N2O5(g) → 2 NO2(g) + ½ O2(g)

if we start with a 2.50-g sample of N2O5 at 335 K and have 1.50 g remaining after 109 s, 

(a) What is the value of the rate constant k? 

(b) What is the half-life of the reaction? 

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#Question id: 2259

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following is not a characteristic of prokaryotes?

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#Question id: 2260

#Section 3: Genetics, Cellular and Molecular Biology

The term "nuclear envelope" is more correct than the term "nuclear membrane" because

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#Question id: 2261

#Section 3: Genetics, Cellular and Molecular Biology

Oxidative metabolism is carried out ____ of mitochondria.

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#Question id: 2262

#Section 3: Genetics, Cellular and Molecular Biology

Ribosomes are made up of ____ subunits.

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#Question id: 2263

#Section 3: Genetics, Cellular and Molecular Biology

Proteins synthesized by the rough ER are

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#Question id: 2264

#Section 3: Genetics, Cellular and Molecular Biology

Plants differ from animals in that plants have