If a Chemist Wishes to React a Solid with a Liquid

question 17

Multiple Choice

If a chemist wishes to react a solid with a liquid, which of the following will be the most effective in speeding up the reaction?

• A) adding more liquid reactant
• B) grinding the solid to a form a powder
• C) placing a large crystal of the solid in a beaker containing the liquid reactant
• D) all of these

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Definitions:

Dinosaurs

A diverse group of prehistoric reptiles that lived during the Mesozoic Era, now extinct.

Mass Extinctions

Events in Earth's history where large numbers of species become extinct in a relatively short period of time.

Fossil Record

The collection of all known fossils and their placement in rock formations and sedimentary layers, providing evidence of past life and evolutionary histories.

Protocells

Simple, self-organized, prebiotic structures that are considered the precursors to living cells.