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☆☆☆☆☆Cards in this guide (15)
What is PPM in full
PPM = Parts Per Million.
1 ppm = 0.0001%
What kind of solid breaks with no regular patterns
an amorphous solid
What kind of crystalline solid is MgCl2
Ionic
What two factors determine the point at which a liquid will boil
Heat or energy applied and atmosphereic pressures
Pressure and temperature (apex)
Which of the following best describes the kinetic theory
Atoms and molecules are always moving or vibrating.
What temperature scale is used in the ideal gas equation
K (Kelvin)
What is the tendency of a solute to change the melting point of a solid called
The answer is "Freezing point depression" on Apex
Which type of molecules would have the lowest melting point
NonePolar Molecules
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 is the following of a base
A base contain the hydroxyl group (OH)-.
What is molality of a solution
It is the number of moles of solute in 1 kg of solvent.
What is the molality of a solution made by dissolving 2 moles of NaOH in 6 kg
Molality (m) is defined as moles of solute per kg of solvent.Thus, 2 moles/6 kg = 0.33 molal or 0.3 m.
What will result from increasing the temperature of gas
Increasing the temperature of gas the volume increase.
Which of the following is an electrolyte solution
The answer is "Ions in water" on Apex
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