Chemistry unit 1 Physical or Chemical Changes Flashcards
What are the 3 states of matter?
Solid, liquid and gas
Name 3 properties of a solid
They have a fixed shape, really strong bonds between molecules, they do not pour
Name 3 properties of a liquid
Can be poured, take shape of their container, slightly less close packed, intermolecular bonds are strong
Name 3 properties of a gas
particles are spread out, intermolecular bonds are weak, spread out to fill all available space, gas molecules are constantly moving
The boiling point of water is?
100 oC
The Freezing point of water is?
0oC
Water is made up from 2 types of atom. They are….
Oxygen and Hydrogen
What do you call the process by which a liquid becomes a gas?
evaporation
What do you call the process by which a liquid becomes a solid?
Freezing
What do you call the process by which a solid becomes a liquid?
Melting
What do you call the process by which a gas becomes a liquid?
Condensation
What do call the process by which a gas becomes a solid?
Deposition
What do you call the process bu which a solid becomes a gas?
Sublimation
As a block of ice starts to melt, the bonds between the oxygen and hydrogen particles starts to …. and ….
weaken and break
Name 3 types of precipitation
rain, snow, sleet, hail
