Classifying Matter
Property and States of Matter
Physical vs. Chemical Changes
Phase Change Graphs
Anything
100
Everything in the Universe is made up of this?
Matter
100
This phase of matter retains its shape and volume and has the strongest attractive forces, but the least amount of energy
What is a Solid
100
A new substance is made during a __________ change.
Chemical
100
As you move up or down, on the graph, what is increasing or decreasing, respectively
temperature
100
Phase change from solid to gas
What is sublimation?
200
A) What is the term for a pure substance that has more than one type of atom?
B) What is the term for a pure substance that has only one type of atom?
A) Compound
B) Element
200
This is a state of matter which exists only at very high temperatures (like on the sun or other stars)
What is plasma?
200
Phase changes are what kind of changes?
Physical
200
Where are phase changes occurring?
melting point and boiling point
200
Name two physical properties. Explain each.
What is hardness (ability to resist scratching), malleability (ability to be hammered without shattering), color (what color is it), temperature (melting point freezing point boiling point) . . .
300
A combination of 2+ substances where physical properties are kept and are easily separable is known as what?
mixture
300
This is a state of matter has a medium amount of energy and the material has a definite volume, but not a definite shape (fits the shape of the container)
What is a liquid?
300
Iron rusting is this type of change (explain)
What is chemical (a new substance is formed)?
300
What type of energy is being added (going to the right on the graph) or subtracted (going to the left on the graph)?
Thermal or heat
300
This phase of matter (one of the three common phases) has the greatest kinetic energy and least attractive force
What is a gas?
400
Classify the following as element, compound or mixture
A) sugar
B) carbon
C) sand
D) baking soda
A) sugar: compound
B) carbon: element
C) sand: mixture
D) baking soda: compound
400
What is the difference between a chemical and a physical property
What is a chemical property will involve a material's ability to form new substance (through burning or reacting chemically with other materials), while a physical property is used to identify a substance without changing its composition
400
These are three indicators of a chemical change:
What is a) change in color b) formation of a gas c) formation of a precipitate d) heat or light created
400
What is happening from (l) to (s) on the graph
Freezing
400
Combining vinegar and baking soda is this type of change
What is a chemical change (formation of a gas)?
500
A) Define homogeneous mixture & give an example
B) Define heterogeneous mixture & give an example
A) Homogeneous: same throughout, lemonade
B) Heterogeneous: different throughout, Italian salad dressing
500
A) Give an example of a physical property of matter
B) Give an example of a chemical property of matter
A) Physical property: color, odor, solubility, boiling point, etc.
B) Chemical property: flammability, reactivity with …
500
A) Classify the following as physical or chemical changes:
A) Picking up iron with a magnet
B) Digesting food
C) Opening a can of pop
D) Mixing baking soda and vinegar
A) Picking up iron with a magnet: physical
B) Digesting food: chemical
C) Opening a can of pop: physical
D) Mixing baking soda and vinegar: chemical
500
What is it called when thermal heat is being reduced at (g) to (l)
Condensation
500
During a phase change, what happens to the temperature of the substance?
During phase changes, temperature stays the same