Chapter 1
what is the SI Unit of Mass
What is a kilogram (gram)
This state of matter has a definite shape and a definite volume.
what is a solid?
(freezing, melting, evaporation, sublimation)
(less ordered to more ordered)
Volume is measured in
cm^3 or mL
Property of a substance that describes its ability to change into another substance.
Chemical Property
Which of the following is a physical change:
a. burning
b. rusting
c. freezing
d. oxidation
what is freezing?
This state of matter has no definite shape but a definite volume
What is a liquid?
A student is studying water. The sample has a definite volume, but no definite shape. Which state of matter is the student examining?
What is liquid water?
Mass is measured in
Characteristic that describes a substance without changing that substance into another substance
What is a physical property?
The density of sulfur is 2.0 g/cm^3. What is the mass of a sample of sulfur with a volume of 6.0 g/cm^3
What is 12 g
This state of matter has no definite shape and no definite volume
what is a gas?
Vaporization that takes place both below and at the surface of a liquid is called.
Boiling
The formula for Density is
mass/volume
The two particles in the middle of an atom are:
What is protons and neutrons?
The ability to dissolve in water and to conduct electric current are examples of:
a. physical properties
b. chemical properties
c. physical changes
d. chemical bonding
This is the inward force or pull among molecules in a liquid that brings molecules on the surface closer together
(it allows a water strider to walk on top of the water)
What is surface tension?
This occurs when the surface particles of a solid gain enough energy that they form a gas
what is sublimation?
In this type of solid the particles form a regular, repeating pattern
What is a crystalline solid?
Atomic number tells you what?
What is number of protons?
24 cm^3
This is a characteristic of a liquid that describes its resistance to flow.
What is viscosity?
What is: they are closely locked in position and can only vibrate in place.
In this type of solid the particles are not arranged in a regular pattern.
What is an amorphous solid?
the total energy of the motion of all the particles in an object