In an ideal gas if the temperature goes up the volume will also go up if the __________ is to be held constant
What is pressure
100
To change a liquid to a gas requires that energy be _____ by the system
What is absorbed
200
Atoms
What is the smallest unique particle of any substance
200
This type of change releases energy
What is an exothermic process
200
A common substance with a density of 1 g/mL
What is water
200
The relationship between pressure and volume at constant temperature is what kind of relationship
What is an inverse relationship - as volume goes up,pressure goes down
200
When a liquid freezes and becomes a solid energy is _________ to the surroundings
What is released
300
Do not change during any physical change
What are atoms
300
This type of change absorbs energy
What is an endothermic process
300
a unit of volume that is the same as a cubic centimeter
What is a milliliter
300
A gas at constant volume is heated from 300K to 600K. The pressure of the gas will
What is double
300
During a phase change that releases energy to the surrounding the speed of the particles in the system ________
What is slow down
400
Must collide with another to make a chemical change happen
What are particles
400
Energy stored as the random motion and vibrations of individual particles
What is kinetic energy
400
A substance that with a mass of 10 grams occupies a volume of 20 mL will sink or float in water
What is float
400
The number of particles of a gas in a fixed volume is reduced by 1/2. In order for the pressure to remain the same the temperature must______
What is double
400
It takes more energy to turn a liquid into a gas than a solid into a liquid because the _____________ between the particles is much greater in the first case
What is spacing
500
Always have the same shape, size and mass
What are the particles that make up any substance
500
Depends on the mass and speed of a particle
What is kinetic energy
500
An object that has a volume of 20 mL is placed in a graduated cylinder with water and sinks, by how much does the level of water change
What is 20 mL
500
The ratio of a gases pressure times its volume divided by its absolute temperate is a __________ according to the combined gas law
What is constant
500
The temperature of the surroundings of a chemical reaction that absorbs energy will ___________