Quiz 3

Chemistry in Context Study Set 1

Chemistry

Quiz 3 :
The Chemistry of Global Climate Change

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Quiz 3 :
The Chemistry of Global Climate Change

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Q01

Scientists believe they know the average global temperature over the last 160,000 years.Which property of the ice core samples from Antarctica provides this information?

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Multiple Choice

C Explanation: Think about which of these would be a component of rain and snow.

Free

Q02

Determine the shape or geometry of PH₃.(Hint: Use the Periodic Table to arrive at the electron configuration for phosphorous. )

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Multiple Choice

B Explanation: Remember that the central atom has three atoms and no lone pairs around it.

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Q03

Which atmospheric component does not contribute to global warming?

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Multiple Choice

C Explanation: Remember that nitrogen gas does not vibrate in the presence of IR radiation.

Q04

Which of these represents the best Lewis structure for acetylene (C₂H₂)?

Multiple Choice

Q05

Neither N₂ nor O₂ are greenhouse gases because

Multiple Choice

Q06

Calculate the mass of 2.50 × 10⁴ molecules of nitrogen gas.

Multiple Choice

Q07

Find the molar mass of ethanol,C₂H₆O.

Multiple Choice

Q08

What international agreement attempted to reduce greenhouse gas emissions?

Multiple Choice

Q09

The greenhouse and enhanced greenhouse effects refer to the return of approximately ___ percent and greater than ___ percent of the heat radiated by Earth.

Multiple Choice

Q10

Although carbon dioxide is the primary compound discussed with respect to global warming;of the common atmospheric components the global warming potential (GWP)of a carbon dioxide molecule is very low.Which statement best explains this pair of facts?

Multiple Choice

Q11

Determine the molar mass for fluoxetine (C₁₆H₁₆F₃NO),also known as Prozac.

Multiple Choice

Q12

How many atoms are present in 0.375 mol of palladium (Pd)atoms?

Multiple Choice

Q13

This is the Lewis structure for acetic acid.The bond angles are not drawn to scale.

Based on the electronic configuration shown in the Lewis structure,predict the O CO bond angle,in degrees.

Multiple Choice

Q14

Predict the geometry of nitrous oxide,N₂O (atomic order NO).

Multiple Choice

Q15

Scientists have correlated average global temperature with atmospheric carbon dioxide levels for the last 160,000 years using ice cores from Antarctica.How is the carbon dioxide level determined?

Multiple Choice

Q16

Which practices might be described as carbon sequestration? I.Planting trees II.Deforestation III.Pumping carbon dioxide deep into the ocean IV.Increasing combustion of fossil fuels

Multiple Choice