particle model of matter - changes of state - internal energy and transfers - pressure

Question 1

what is the density formula?

Answer 1

density = mass /
volume

Question 2

what is density measured in?

Answer 2

kg/m³

Question 3

what is volume measured in?

Answer 3

m³

Question 4

what are the different states of matter and explain the bonds between the particles

Answer 4

gas - weak bond
liquid - okay bond
solid - strong bond

Question 5

what states of matter are involved in melting and how? talk about bonds

Answer 5

solid to liquid ( the particles vibrate and the bonds break )

Question 6

what states of matter are involved in freezing and how? talk about bonds

Answer 6

liquid to solid ( the bonds get stronger and particles pull towards eachother )

Question 7

what states of matter are involved in boiling and how? talk about bonds

Answer 7

liquid to gas ( the bonds get weaker )

Question 8

what states of matter are involved in evaporation and how? talk about bonds

Answer 8

liquid to gas ( at any temperature the bonds get weaker )

Question 9

what states of matter are involved in condensation and how? talk about bonds

Answer 9

gas to liquid ( bonds get stronger )

Question 10

what states of matter are involved in sublimation and how? talk about bonds

Answer 10

solid to gas (bonds break completely )

Question 11

what is internal energy

Answer 11

the total kinetic and potential energy of all particles in a system

Question 12

if there is high pressure, what can say