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Chemistry

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Shanon Bosco

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Cards in this guide (14)
What is the function of a prism

It splits light up into a frequency spectrum.

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 transition energy corresponds to an absorption line at 502 nm

3.96 10-19 j

What does it mean for a property to be quantized

special values

What information is obtained from radioactive dating

The age of an object that was once living.

What does an electromagnetic spectrum refer to

A range of wavelengths of light that increases from one end to the other

What could be a third quantum number of a 2p3 electron in phosphorus 1s22s22p63s23p3

ml = -1

Which of these actions increases enthalpy in the air molecules of the Earth's atmosphere

The air being heated by the sun.

Which issue associated with nuclear power is the biggest source of debate

The biggest issue associated with nuclear power is determining what can be done with the radioactive waste.

What is the main factor in determining the amount of thrust a rocket requires to leave the Earth's atmosphere

Payload weight.

What is the wavelength of a light of frequency 4.47 X 1014 Hz

The wavelength is 671 nm.

A concentration unit expressed in units of moles of solute per kilogram of solvent

This is called molality.

The combustion reactions that occur in the engines of a rocket lead to pressure gradients that cause the gaseous products to rush out of the rocket into the atmosphere. What is created by this process

Thrust

A rocket uses an engine that creates thrust through the combustion of a liquid fuel and an oxidizer. What kind of rocket is this

Chemical rocket


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