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Chemistry

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Greyson Swaniawski

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Cards in this guide (15)
What is a solution

A liquid with something dissolved in it

What does temperature measure

Temperature measures how fast molecules are moving or in scientific terms it measures the AVERAGE KINETIC ENERGY in a system. Temperature measures how fast molecules are moving. :):)

What happens to water molecules when they are heated

Like all molecules, a molecule of H20 is in constant motion; 'hot' molecules move faster than 'cold' molecules. If the molecules move slowly enough the substance appears stationary to us (frozen water) and if they move quickly enough they will expand to fill their container (vapor or gas water.)

What term describes the physical change of a solid to a liquid at the melting point

melting

How do intermolecular forces affect the boiling point of a liquid

The stronger the forces, the more heat that must be added to boil the liquid

What information does a phase diagram give

The effect of temperature and pressure on the phase of a substance

What factors are included on a phase diagram

Temperature and Pressure

What forces hold ionic solids together

Ionic bonds

What would dissolve the best in oil

grease

What is the significant force that attracts water molecules polar molecules to each other

hydrogen bonding

Which molecular solid would have the highest melting point

A solid that has hydrogen bonding would melt the easiest.

What is a phase diagram

a diagram showing the effects of temperature and pressure on phase

Read the following excerpt from Notes of a Native Son by James Baldwin Once this disease is contracted one can never be really carefree again for the fever without an instant's warning can recur at an


It compares hate to a disease that cannot be cured.

In what way does James Baldwin use a narrative structure

The essay tells a story about race relations in Harlem.

(APEX)

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Which of the following is an electrolyte solution

The answer is "Ions in water" on Apex

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