States of Matter
Changing Physical State
Mixtures and Solutions
Separation Techniques
Diffusion
Lab Architect
100
What are the three most familiar forms in which matter exists?
Solid, liquid, and gas
100
What is the precise temperature at which a liquid turns into a solid?
The freezing point
100
Name the type of mixture that has a uniform composition throughout, like sugar water.
Homogeneous mixture
100
Name the method that separates colored substances based on their different solubilities in a moving solvent.
Paper Chromatography
100
This is the direction particles move during diffusion, from an area of high concentration to one of ..............
Low concentration
100
Name this lab equipment.
Funnel
200
Which state of matter has no fixed volume and expands to fill its container?
Gas
200
TRUE OR FALSE?
If the surrounding atmospheric pressure falls, the boiling point for a liquid will rise.
False
200
You add a teaspoon of sugar to a glass of water and stir until the sugar is no longer visible.
Name the solute, the solvent and the resulting mixture type.
Solute: Sugar
Solvent: Water
Mixture Type: Homogeneous mixture
200
What is a solution that can dissolve no more solute at the specific temperature?
Saturated solution
200
You add a teaspoon of sugar to a glass of water and stir until the sugar is no longer visible.
Name the solute, the solvent and the resulting mixture type.
Solute: sugar
Solvent: water
Mixture type: Homogeneous solution
200
Which tool is essential for experiments where you are measuring the "rate of reaction"?
a stopclock / stopwatch
300
Describe the arrangement and movement of partivles in a solid.
Particles are closely packed in a regular lattice and vibrate about fixed positions.
300
You see "smoke" coming off a block of dry ice (solid CO2). It is turning directly into gas. Name this process.
Sublimation
300
You test a sample of water and find it boils at 102 degreesC. What does this tell you about the water?
It is impure.
300
The Rf Formula: A dye travels 4 cm up the paper while the colvent travels 10 cm.
Calculate the Rf value.
0,4 (4/10)
300
Two gasses, A (heavy molecules) and B (light molecules), are released. Which gas will diffuse to the other side of the room faster?
Gas B (lighter particles move/diffuse faster)
300
You have large crystals but you need a fine powder to make it dissolve faster.
Name the two part tool used to crush them.
Mortar and Pestle
400
Define the term "fluid" and name the two states of matter that fit this description.
A substance that can flow; liquids and gases
400
Describe the difference between boiling and evaporation in terms of where the bubbles form.
Boiling happens throughout the liquid (bubbles form inside); evaporation only happens at the surface.
400
Name for a heterogeneous mixture containing large particles that will eventually settle if left undistrubed.
A suspension
400
Name the device used in distillation to turn hot vapour back into a liquid.
A condenser (Liebig condenser)
400
Place in order the three states of matter from fastest to slowest diffusion rate.
Gas (fastest), Liquid, Solid (no diffusion)
400
What is the name of the metal three legged stand used to support a beaker over a Bunsen burner?
A tripod
500
What is the term for the empty space between particles, which is large in gases but small in solids?
Intermolecular space
500
What are the two processes during which the temperature remains constant while the state changes?
Condensation and freezing (solidification)
500
What is the name of a solid solution made of different metal elements, for example, a mixutre of copper and zinc?
An alloy
500
Name the solid that remains on the filter paper after the filtration process is complete.
Residue
500
If you put a drop of blue dye into a beaker of water at 50 C vs. 20 C, in which beaker will the water turn blue first? why?
The 50 degree C beaker, High temperature means particles have more kinetic energy and move faster
500
Which tool is used to find the "plateau" on a heating curve?
A thermometer