Mix of Flow and Matter Flashcards

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1
Q

What is a pure substance?

A

Made of only one kind of matter; cannot be separated into different substances. Ex. Gold, aluminum foil

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2
Q

What is a mixture?

A

Made up of combinations of different substances

Ex. Saltwater, oreos, air, pancake mix.

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3
Q

What can mixtures be broken up into?

A

Mechanical mixture
Solution
Suspension
Colloid

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4
Q

What is a mechanical mixture? (Heterogeneous mixture)

A

A mixture that is made up of two or more parts.

Examples: Pizza and salsa

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5
Q

Solution (Homogeneous mixture)

A

A mixture of 2 or more pure substances that looks like one substance.
Examples: Pepsi, sugar and water

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6
Q

What is suspension?

A

A cloudy mixture in which droplets or tiny pieces of one substance is held within another substance; if left undisturbed, its parts will usually separate out. The particles settle slowly after mixing.
Examples: muddy water, tomato juice, orange juice with pulp, salad dressing

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7
Q

What is a colloid?

A

A cloudy mixture in which very small particles stay suspended in the liquid. Colloids are considered to be between a solution and a suspension.
Examples: Homogenized milk is a colloid of tiny cream droplets in whey, Cytoplasm inside cells

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8
Q

What is a solvent?

A

A substance that dissolves a solute to form a solution

Example: Water, known as the ‘universal solvent’

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9
Q

What is a solute?

A

A substance that dissolves in a solvent to form a solution.

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10
Q

What is a solution?

A

Dissolving one substance into another creates a solution, the solute particles are attracted to the atoms of the solvent. A solution should look like one fluid, no floaties!

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11
Q

What is concentration?

A

The amount of solute (g or kg) dissolved in a specific amount of solvent (mL or L) in a solution; written as g/L or kg/L. Means amount of solute/amount of solvent.
We use terms like ‘concentrated’ and ‘diluted’ to describe the solutions:
In a concentrated solution there are large amounts of solute in a solution
In a diluted solution there are small amounts of solute in a solution

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