States of Matter
A type of matter that has a definite volume but not a definite shape, and is not compressible.
What is a liquid?
3 examples of physical properties and 3 examples of chemical properties
What are: physical- color, melting point, hardness, density, volume... chemical- flammability, ability to rust, heat of combustion, reactivity...
The two types of mixtures and an example of each.
What are heterogeneous (fruit salad) and homogeneous (coffee)?
The best method to separate a mixture of dirt and water
What is filtration?
An example of an element.
What is hydrogen, helium, lithium...(any on the periodic table)?
Definition of a gas.
What is a type of matter that has no definite shape or volume, is compressible, particles moving very fast?
Definition of the Law of Conservation of Mass
What is Mass(reactants) = Mass(products) or in a chemical reaction matter is neither created nor destroyed.
The two types of pure substances and an example of each.
What are elements (hydrogen) and compounds (water)?
Two methods that could be used to separate salt and water.
What are distillation and crystallization?
Two examples of compounds.
What are H2O and NaCl? (Answers may vary)
Particle diagrams of a solid, liquid, and gas.
(see drawings)
Phase changes are an example of these. Give 2 more.
What are physical changes? Breaking something or crumpling it up? (Answers may vary)
Air.
What is a solution (homogeneous mixture), gas dissolved in gas?
The method of separation where components of a mixture are separated by drawing them across a surface, and an example.
What is chromatography, separating marker dyes?
An explanation of why a compound is a pure substance.
What is: the different atoms are chemically combined, not physically, and would require a chemical reaction to separate?
The reason gas particles fill the volume of the container they are in.
What is gases contain very fast moving, high energy particles?
3 indications of a chemical change.
What are color change (not dilution or mixing), gas formation, temperature change (not from heating), change in physical and chemical properties...
Soda.
What is a solution (homogeneous mixture), gas and solid dissolved in liquid.
The reason gas particles fill the volume of the container they are in.
What is gases contain very fast moving, high energy particles?
The percent by mass of hydrogen in a 78.0 g sample of an unknown containing 12.4 g of hydrogen. (Sig figs count!)
What is 15.9%?
The names and definitions of all six phase transitions.
What are freezing (liquid to solid), melting (solid to liquid), evaporation (liquid to gas), condensation (gas to liquid), sublimation (solid to gas), and deposition (gas to solid)?
Definitions of extensive and intensive properties. An example of each.
What are: Extensive property- depends on the amount (mass, length, volume) Intensive property- doesn't depend on the amount (color, hardness, density)
Examples of solutions of 1. gas dissolved in liquid, 2. liquid dissolved in liquid, 3. solid dissolved in solid
What are 1. oxygen in seawater, 2. alcohol in water, 3. brass?
A flow chart showing the separation of iron, sugar, dirt, water, and alcohol.
What is magnet (iron), filter (dirt), crystallization (sugar), distillation (water and alcohol)?
3.5 g of element X reacts with 10.5 g of element Y to form the compound XY. The percent mass of both elements X and Y.
What are 25%X and 75% Y?