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Chemistry

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Mohammad Gaylord

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Cards in this guide (18)
What is a heterogeneous mixture

Heterogeneous means of different types. So a heterogeneous mixture is a mixture of dissimilar items. Homogeneous means of the same type so a homogeneous mixture would be a mixture of similar items.

A mixture where two or more substances are mixed together but are not chemically combined is called as an heterogeneous mixture.

In chemistry, heterogeneous mixture is a mixture of two or more different substances in the form of solution or colloids. For example, salad is an heterogeneous mixture


A heterogenous mixture is not uniform in composition and properties throughout.
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

Does a physical property describes a boiling point

The boiling point of any given material is indeed among its physical properties.

How would the kinetic theory address

Vibrations in molecules

What factors are included on a phase diagram

Temperature and Pressure

What intermolecular force attracts two nonpolar molecules to each other

van der waals forces

Why does reducing solute particle size increase the speed at which the solute dissolves in water

It exposes more of the solute surface to the water molecules.

What does it mean if a solid is malleable

bendable

What would dissolve the best in oil

grease

What do the lines on a phase diagram represent

apex

Which of the following could a magnet float over network solid semiconductor superconductor molecular solid

A superconductor.

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

hydrogen bonding

What usually has lower melting points than ionic solids

Molecular solids

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)

!/

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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