States of Matter
Particles are arranged in a regular pattern and close together
What is a solid
The process of changing from a solid to a liquid
What is melting?
What happens to the pressure when you increase the temperature?
What is: the pressure increases
The part that dissolves into the solution.
Solute
A solution that contains the maximum amount of solute than it can hold at a given temperature is
Saturated
Particles are close together, but can move freely past each other.
What is a liquid
The process of going from a liquid to a gas
What is vaporization?
What happens to the volume when the temperature increases?
What is: the volume increases
The part that dissolves something in the solution
Solvent
What is a supersaturated solution?
A solution that has more solute than can normally be dissolved
Particles are far apart
What is a gas?
The process of going straight from a solid to a gas
What is sublimation?
What happens to the pressure when the volume increases?
What is: the pressure decreases
Water
A student pours mineral salts into a bottle of cold water. Explains why shaking the bottle will affect the dissolving rate of the salt?
Shaking exposes the salts to the solvent more quickly.
State of matter that has a definite volume, but no definite shape
What is a liquid
A physical process that absorbs energy
What is endothermic
The pilot can change the altitude of the hot-air balloon by changing the temperature of the gas inside the balloon. Explain what why the balloon rises, when the gas is heated?
Heating the gas increases the volume thereby decreasing its density
A teaspoon of dry coffee crystals dissolves when mixed in a cup of hot water. This process produces a coffee solution. The original crystals are classified as
Solute
A 10 gram sugar cube and a 10 gram sample of powdered sugar are placed in two cups with the same volume of water at the same temperature. Which dissolves faster and WHY
The powdered sugar dissolves faster because it has more surface area
List the states of matter in order of the highest kinetic energy to the lowest kinetic energy
What is gas, liquid, solid
A physical process that releases energy
What is Exothermic
The cylinder filled with gas particles is fitted with a moveable piston that can be raised and lowered. What will result in an increase in the pressure of the gas?
What is: decrease the volume
A mixture that is the same throughout.
Homogeneous
Ruby adds salt to a beaker of water. After she stirs the water, a small amount of salt remains at the bottom of the beaker. She heats the beaker for 5 minutes, and the salt on the bottom of the beaker disappears. How does heating the water cause the remaining salt to disappear?
Heat makes the salt more soluble in water