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Chemistry

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Irma Kerluke

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โˆ™ 2021-09-30 20:41:42
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Cards in this guide (20)
What does the solvent do in a solution

The answer is "It dissolves something else" on Apex

What does it mean for a solution to be saturated

The maximum amount of solute is dissolved in it-apex

What is PPM in full

PPM = Parts Per Million.

1 ppm = 0.0001%

Does meteors move around the sun

Meteoroids orbit the Sun like every other object in the solar system.

Meteors are meteoroids that enter the Earths atmosphere but fail to hit the ground. If they enter the atmosphere at a very shallow angel they can end up passing through and go on to continue to orbit the Sun. Most however burn up in the atmosphere before they hit the ground.

What forces hold molecular solids together

London dispersion forces (also known as van der Waals forces) hold molecular solids together.

or

Intermolecular forces

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)

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).

Which would increase the pressure of gas in a container

Temperature can increase pressure of gas in a container ,

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

The volumes doubles

Using the phase diagram for CO2 what phase is carbon dioxide in at -70degreesC and 1 ATM pressure

It is in the gas phase.

What is the following of a base

A base contain the hydroxyl group (OH)-.

What mixture would form a heterogeneous mixture

mixture of polar and nonpolar liquids.

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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