Anatomy of an Atom Classifying Matter Phase Changes Properties of Matter Chemical or Physical Change? 1pt 1 pt 1 pt 1pt 1 pt 2 pt 2 pt 2pt 2pt 2 pt 3 pt 3 pt 3 pt 3 pt 3 pt 4 pt 4 pt 4pt 4 pt 4pt 5pt 5 pt 5 pt 5 pt 5 pt
Which subatomic particle is neutral?
Neutron
Which two subatomic particles make up the nucleus?
Protons and Neutrons
What do we call an atom that has gained or lost electrons?
Ion
What do we call an atom that has gained electrons? (be specific!!)
anion
Isotopes have the same atomic number but a different what?
Mass Number
What two things must something have to be considered matter?
Mass and volume
How are pure substances combined?
Chemically
Which of the following is not a pure substance Which of the following is not a pure substance? compound, mixture, element or molecule
mixture
Matter that is physically combined and non-uniform throughout is?
Heterogeneous mixture
What is the smallest unit of a substance that still has the same chemical properties of the substance itself?
Molecule
Which state of matter has the least amount of heat energy?
Solid
Which state of matter has the most amount of heat energy?
Plasma
What is temperature?
A measure of the amount of kinetic energy in an object.
As heat energy increases, what decreases?
Intermolecular forces
How do a solid and liquid differ? (give a detailed answer!)
Solid: least amount of heat energy, strongest intermolecular forces, definite volume and shape. Liquid: More heat energy than a solid, weaker intermolecular forces, definite volume but no definite shape.
What is the freezing point of water in Celsius?
0 degrees
What is the condensation point of water in Fahrenheit?
212 degrees
How do you determine if the temperature you are referencing is the melting point or freezing point of a substance?
Cooling down? freezing point Heating up? melting point
What kind of property is reactivity and flammability?
Chemical
What must happen for a chemical change to take place?
A new substance is formed.
Sharpening your pencil
physical change
Ice melting
physical change
A bicycle rusting
chemical change
Using oil to make plastic spoons
chemical change
Using water to make Hydrogen fuel
chemical change