States of Matter
This state of matter has tightly packed particles that vibrate in place
When ice melts into water, it changes state but remains H2O, which makes this a _____ change
Physical
The measure of how much mass is contained in a given volume refers to an object's ______.
Density
This is a mixture formed when a solute dissolves completely in a solvent, resulting in a uniform composition throughout
Solution
Acids release these ions when dissolved in water
Hydrogen (H+)
This state of matter has neither a definite shape nor volume, with particles moving freely and spreading out to fill their container
Gas
True or false? When you cool a gas, its particles move faster and the gas expands
False
If an object is more dense than water, what will happen when it is placed in water?
Sink
A mixture with particles that do not settle and scatter light
Colloid
This is an everyday example of an acid
Citrus fruit (citric acid), vinegar, stomach acid, battery acid, etc.
This type of solid has a random atomic arrangement
Amorphous
A nail rusting over time is an example of this type of change
Chemical
True or false? Density can be used to identify substances.
True
What happens to the solubility of most gases in water as temperature increases?
Solubility decreases
Bases release these ions when dissolved in water
Hydroxide (OH-)
This is what occurs when water evaporates from the surface of a liquid and becomes a gas
Evaporation
This property of water is responsible for the formation of water droplets
Surface tension
This is the formula for calculating density
d=m/v
This effect occurs when light is scattered by particles in a colloid or a suspension, making the path of the light visible
Tyndall Effect
Ammonia is an example of a _____
Base
This is the process of a solid turning directly into a gas
Sublimation
This property describes how easily a substance can catch fire or burn
Flammability
This is the density of an object with a mass of 150 grams and a volume of 50 cm³
3 g/cm³
A solution that has dissolved the maximum amount of solute is
Saturated
These are the products of a neutralization reaction
Water and salt