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Chemistry

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Claud Breitenberg

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Cards in this guide (19)
What is DNA

A nucleic acid

apex

What is a renewable resource

One that can be produced as fast as it is used - apex

What does not affect the rate at which a solid solute dissolves

Increasing the pressure over a solid solute has virtually no effect on the rate that it dissolves. Stirring and increasing the temperature are the best methods for increasing the rate at which a solid solute dissolves.

The principal quantum number for the outermost electrons in a Bromine atom in the ground state is

It is n=4 because Br is in the 4p valence shell.

What is the nuclear decay equation for an example of alpha decay

The equation for the alpha decay of 239Pu is: 94239Pu --> 92235U + 24He

where 24He represents the alpha particle, which is a Helium nucleus.

What best describes what the pH number indicates about a solution

How acidic the solution is
the number of H+ ions in the solution

What information does an equilibrium constant give about a reaction

It tells whether products or reactants are favored at equilibrium

What is the greenhouse effect

gases in the atmosphere trap the heat from the sun

What property of a substance does its specific heat capacity describe

How much heat it takes to raise the temperature

What describes the behavior of an ideal gas

The ideal gas law, which is a good approximation to the behavior of many gases under many conditions, even though it has many limitations. It is a combination of Boyle's law and Charles's law and was first stated by Emile Clapeyron in 1834.

What characterizes an Arrhenius acid base reaction

It forms a salt and water.

Which type of molecule supports a tree's tall structure

polysaccharide
polysaccharide

What best describes a radioisotope

its nucleus is unstable

Which of the following carbon skeletons represents a carboxylic acid

Mono-protic carboxylic acids are generally represented as R-COOH

Which is a renewable energy source

Hydroelectric

What is an alkene

Apex- A hydrocarbon containing a carbon-carbon double bond

Under what conditions is G for a reaction always positive

When H and S are both positive

According to the Gibbs free energy equation G H - TS when is a reaction always spontaneous

when H is negative and S is positive

a pacemaker:

sends electrical impulses to the heart, causing it to beat more regularly

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