Anything that takes up space and has mass
What is matter?
This property describes how much mass is packed into a given volume
What is density?
This state of matter has a definite shape and definite volume
What is a solid?
When a solid changes into a liquid
What is melting?
This is the measure of the average kinetic energy of particles
What is temperature?
This type of pure substance contains one atom
What is an element?
Honey flows more slowly than water because it has greater this property
What is viscosity?
This state has a definite volume but takes the shape of its container
What is a liquid?
When a liquid changes into a solid
What is freezing?
The energy required to change a solid into a liquid is called this
What is heat of fusion?
Salt water contains salt and water that are physically combined. This makes it this type of matter
What is a mixture?
A substance's ability to dissolve in another substance
What is solubility?
This extremely high-energy state contains free electrons and positive ions
What is plasma?
When a gas changes directly into a solid without becoming a liquid
What is deposition?
The energy required to change a liquid into a gas is called this
What is heat of vaporization?
Water (H₂O) is made of hydrogen and oxygen chemically combined in a definite ratio. It is an example of ______
Iron reacting with oxygen to form rust is an example of this chemical change
What is oxidation?
In this unusual state, atoms are cooled extremely close to absolute zero
What is the Bose - Einstein Condensate?
Dry ice changing directly from a solid into a gas is an example of this process
What is sublimation?
On a heating curve, a flat section usually indicates that the substance is undergoing this ____
What is a phase change?
A student has a cup containing water, ice cubes, and dissolved sugar. Identify the types of matter present and explain whether the sugar water is a substance or mixture
What is a mixture?
A mystery liquid has a mass of 80 g and a volume of 20 mL. What is its density?
What is 4 g/mL?
A substance has particles that are very far apart, moving quickly, and filling the entire container
What is a gas?
Water vapor forms liquid droplets on the outside of a cold glass. What phase change occurred, and did the substance gain or lose energy?
What is condensation ; it lost energy?
On a heating curve, the temperature remains constant while a substance changes from liquid to gas. What is happening to the energy being added?
The energy is being used for the phase change rather than increasing temperature