Liquid turning into a gas
evaporation
A measure of the number of particles packed into a specific volume.
density
How many atoms of oxygen are there in a water particle?
One (1)
Which side of a water particle has a positive charge? (hydrogen OR oxygen)
Hydrogen (H)
The amount of space a substance takes up.
volume
A quality, or characteristic of a substance:
property
In which state of matter do particles move the slowest?
Solid
A measure of how much solute is in a solution is:
Concentration
The type of element an atom is depends on the number of ___________ in the nucleus.
Protons
The ability to do work.
Energy
When you dissolve salt in the water, water is the solvent, and salt is the __________.
solute
When substances are mixed and something new is created.
chemical change OR chemical reaction
What does it mean that water is the "Universal Solvent"?
It can dissolve many substances.
Temperature is a measurement of the average ___________ of the particles in a substance.
speed OR kinetic energy
Which parts of an atom are found in the nucleus?
protons and neutrons
Solid to a liquid
melting
How does matter change phase? (ex: solid to liquid)
Add or take away heat
The state of matter in which particles move freely:
Gas
Explain how adding heat to a substance affects the particles.
Speeds them up!
When a solution cannot dissolve any more solute it is considered:
Saturated
Which part of an atom has a negative charge?
Electron