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Chemistry

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Elroy Murazik

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Cards in this guide (14)
What is PPM in full

PPM = Parts Per Million.

1 ppm = 0.0001%

What characterizes a heterogeneous mixture

The mixture is made up of different consistencies.

What would happen to a sealed bag of chips left in the sun

the bag inside the bag would expand

D:

Which of the following best describes the kinetic theory

Atoms and molecules are always moving or vibrating.

What is the tendency of a solute to change the melting point of a solid called

The answer is "Freezing point depression" on Apex

What is the freezing point of sea water and pure water

The freezing point of pure water is 0 0C.

The freezing point of sea water is variable, depending on the amount of dissolved salts (approx. -3 0C).

According to the ideal gas law what happens to the volume of a gas when the number of moles doubles

The volumes doubles

What substances would be good electrical conductor

Examples: silver, gold, copper, aluminium.

What best summarizes the ideal gas law apex

PV=nRT

What best describes a flight approaching the speed of sound

If accelerating to the speed of sound, the subsonic.

Ask us anythingWhich of the following intermolecular forces is the strongest

Hydrogen bonding

Which of the following is a weak base NH3 KOH LiOH or NaOH

Ammonia solution is a weak base.

What is molality of a solution

It is the number of moles of solute in 1 kg of solvent.

Which of the following is an electrolyte solution

The answer is "Ions in water" on Apex

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