Particles of Matter Flashcards
What is all matter made of ?
Atoms
What is matter that is made of only one type of atom?
An element.
What is matter made of more than one type of atom, where the atoms are bonded together to form a molecule.
A compound
In a solid the particles are….
closely packed and have an orderly arrangement
In a gas the particles are….
very far apart and have an unorderly arrangement
What state of matter has the least kinetic energy and the least movement
Solid
What state of matter has the most kinetic energy and moves the fastest and the most movement
gas
what hapens when temperature of a substance increases
particles gain energy and they move faster. The substance expands because the particles move further apart.
When the temperature of a substance decreases
particles lose energy and they move slower. the substance contracts because the particles move closer together
What happens when a solid is heated to its melting point?
it becomes a liquid.
What happens when a liquid is heated to its boiling point?
it becomes a gas.
What temperature does water boil at
100 ° C
What temperature does water freezes at
0 ° C
what happens if a solute added in the water
the boiling point goes up and the freezing point is goes down
If there is high temperature do the particles move faster or slower?
faster
