2/16 Assessment Kinetics LT 4-19, Organic 1-10

What are hydrocarbons?

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Compare/contrast saturated vs unsaturated hydrocarbons

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Which formula represents a saturated organic compound?

• C₂H₄

• C₃H₈

• C₂H₂

• C₃H₄

Which formula represents an alkane?

• C₂H₄

• C₃H₈

• C₂H₂

• C₃H₄

Which formula represents an alkene?

• C₂H₄

• C₃H₈

• C₂H₂

• C₃H₄

What is the purpose of adding a catalyst to a chemical reaction?

• to provide an alternate reaction pathway

• to convert solid reactants to liquid reactants

• to decrease the potential energy of the products

•  to increase the potential energy of the reactants

What does a catalyst lower?

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A structural formula differs from a molecular formula in that a structural formula shows the

• ratio of atoms

• types of atoms

• arrangement of atoms

• number of atoms

Which term represents the fixed proportion of elements in a compound?

• molar mass

• density formula

• atomic mass

• chemical formula 

What is the number of electrons shared between the atoms in a molecule of nitrogen, N₂?

• 2

• 6

• 8

• 3