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Chemistry

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Geovanny Nader

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2y ago
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Cards in this guide (12)
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 is the pH of a solution

A measure of the acidity of a solution

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 potassium-40

There are three beta decay modes for 40K, and so three equations.

The equation for the negative beta decay of 40K: 1940K --> 2040Ca + -10e

where the -10e represents a beta particle or electron.

The equation for the positive beta decay of 40K: 1940K --> 1840Ar+ 10e

where the 10e represents a positive beta particle or positron.

The equation for the decay of 40K by electron capture is:1940K + -10e --> 1840Ar + ve

What is the greenhouse effect

gases in the atmosphere trap the heat from the sun

Which of the following can be determined from the frequency of a light wave

If you know the frequency of a light wave, you can tell the wavelength, the

color it'll appear to your eye, and the energy in each photon of the light.


The energy of the wave ~APEX

Why does increasing the temperature make a solid dissolve faster

The solvent molecules bump into the solid more often.

What characterizes an Arrhenius base

It Produces a hydroxide ion

What best describes a radioisotope

its nucleus is unstable

What characteristics would make a gas non-ideal

The gas molecules interact with one another

Which of the following describes the greenhouse effect

gases in the atmosphere trap the suns warmth

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