Tag Archives: DAT

Calcium Hydroxide

The solubility of calcium hydroxide (Ca(OH)2) is given as:

The solubility is a factor of total hydroxide ion in the solution and the solvent hydroxide concentration. The solvent is the liquid in which the calcium hydroxide is dissolved. Which of the following would increase the solubility of calcium hydroxide?

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Exchange Genetic Information

During what stage of meiosis do homologous chromosomes exchange genetic information?

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Effectiveness of Hand Wash

Bacteria such as V. cholerae are known to follow an exponential growth curve rate, and will double their number every 15 minutes. Fortunately, anti-bacterial hand wash can kill 99.9% of bacteria on a surface. If a colony of 500 V. cholerae cells are left alone for 2 hours, then anti-bacterial handwash is applied thoroughly, how many bacterial cells are left?

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Switch Hitter

Consider the molecule below. If the CH3- and Cl- groups were switched with each other, how would you describe this new molecule relative to the one below?

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Will The Real Gas Please Stand Up

A real gas approaches the behavior of an Ideal Gas when:

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Forest Fire

An entire forest is leveled after a forest fire. The process by which organisms will repopulate an area is called:

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Filling Cylinders

How many cubic centimeters of water will approximately be required to fill a cylinder with a 3 cm radius and 7 cm height?

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The Usual Suspects

Place the following in order of LEAST acidic to MOST acidic.

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Pure Covalent Bond

Which of the following molecules has a bond that is nearest to a pure covalent bond?

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Photo attributed to Rudolf_Schuba.

Polynucleotide Chains

DNA polymerases catalyze the production of polynucleotide chains. Which of the following statements holds true:

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