P2 Unit 9 & 10 Regents Questions

Which symbol represents a nuclear emission with the greatest mass and the greatest ionizing power?

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One potential benefit of nuclear fusion reactions is

• reactor meltdown

• uncontrolled chain reaction

• production of large amounts of energy

• production of radioactive waste materials

Determining the age of a wooden beam from a sunken ship is an example of a beneficial use of

• Lewis Structures

• Polyatomic Ions

• Radioactive Nuclides

• Homogeneous Mixtures

Given the formula representing a compound:

What is the chemical name for the compound?

• 2-chloropentene

• 2-chloropentane

• 4-chloropentene

• 4-chloropentane

Which formula represents a saturated organic compound?

• C₂H₂

• C₂H₄

• C₃H₄

• C₃H₈

The compounds CH₃CH₂CH₂OH and CH₃OCH₂CH₃ have different

• numbers of carbon atoms per mole

• numbers of hydrogen atoms per mole

• functional groups

• molecular masses

Tritium, hydrogen-3, is a radioisotope. Complete the nuclear equation for the decay of tritium by writing a notation for the missing nuclide.

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Tritium, hydrogen-3, is a radioisotope. Based on Table N, identfiy a nuclide that has the same decay mode as tritium, but has a longer half-life.
(**Don't forget to put the dash with the mass number)

(a)  

A scientific sampling instrument landed on a comet. Four of the organic compounds detected on the comet are methyl isocyanate, propanone, propanal, and ethanamide. The structural formula for methyl isocyanate is shown.

Identify the element in these four compounds that makes them organic compounds.

(a)  

A scientific sampling instrument landed on a comet. Four of the organic compounds detected on the comet are methyl isocyanate, propanone, propanal, and ethanamide. The structural formula for methyl isocyanate is shown.

Write the names of the TWO organic compounds detected on the comet taht are isomers of each other

(a)  

Answer explanation

propanal and propanone are isomers since they have the same molecular formula (C₃H₆O) but differnt structural formulas (functional groups are different)