Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/15

Click to flip

15 Cards in this Set

  • Front
  • Back
Pure Substance (defintion and examples)
Matter that has definite chemical and physical properties
-made up of only 1 kind of material
-is the same throughout, all the particles are exactly the same
-if there is more than 1 element, the atoms are chemially combined

Ex. water, carbon dioxide (CO2), oxygen, carbon, salt (NaC1)
Mixture
Matter that contains two or more substances that differ in physical and chemical properties.
-easily separated
-each substance has its own specific properties.
-not chemically combined

Ex. Salad, sand, vegetables, tacos, food, colored water
Heterogeneous Mixtures
Has varied composition throughout, the particles settle out, the particles are not dissolved.

Ex. Muddy water, oil and water, salad
Homogeneous Mixtures
Has the same composition throughout, does not settle out, and particles are dissolved-in a solution.
Ex. Solutions- salt and water
Soluble
A substance is said to be soluble if it dissolves in another substance.
Insoluble
A substance is insoluble in a substance if it does not dissolve in that substance.
Solvent
A homogeneous mixture of a solvent and a solute.
The solute is finely divided and evenly dispersed throughout the solvent.
It is uniform throughout.
Solute
The substance in the solution that is dissolved by the solvent.
The substance in the solution that there is less of.

Ex. In a salt and water solution - salt is the solute.
Solution
A homogeneous mixture of a solvent and a solute.
The solute is finely divided and evenly dispersed throughout the solvent.
It is uniform throughout.
Dissolve
When a substance dissolves in another substance, the particles of the solute spread out evenly throughout the solvent and a solution is formed.
***The solid solute does not become a liquid
Solubility
The amount of solute that will dissolve in a solvent at a given temperature and pressure.

Ex. For salt, it is 35g/100 mL of water at 25˚C
Saturated Solution
A solution that will not dissolve any more solute at a given temperature or pressure.
Ex. If copper sulfate is added to a tube of saturated solution of copper sulfate, the crystals will remain undissolved at the bottom of the tube
Filtration (filtering)
The process of separating a solid and liquid by passing a mixture of the two through a mesh (usually filter paper).
Filtrate
The liquid that passes through the filter paper (most likely a solution).
Residue
The solid that remains on the filter paper.