1. The document discusses the states of matter - solid, liquid, and gas. It asks questions to test understanding of their properties. 2. In solids, particles are close together, cannot change place, vibrate in fixed positions, and are arranged in rows with strong bonds. 3. Liquids have particles that are closer than gases but farther than solids, can flow and change places but maintain a fixed volume, and are in a random arrangement with no fixed bonds. 4. Gases have particles far apart, moving very fast in all directions with no fixed pattern and only experience attraction/repulsion from other gas particles.

1. 1. En el que dos estados están las partículas dispuestas al azar?
Líquidos y sólidos
Líquido y gas
Gas y sólido
2. ¿En qué estado estánlas partículas sólocapaces devibraren una posición fija?
Sólido
Líquido
Gas
3 . ¿Qué estado se puedencomprimir o aplastado fácilmente?
sólido
líquido
gas
4 .¿Qué estadosemuestra en estediagrama?
líquido
sólido
gas
5 .¿Qué estadono puedefluir deun lugar a otro?
sólido
líquido
gas
6 .Las partículas enel cual el estado notienen bonos?
líquido
sólido
gas
7 .Partículas en quéestado se sientan enun patrón regular y semantienen unidos firmementeporenlaces?
sólido
líquido
gas

2. II. Complete
( b ) The particles are moving about, are
changing places, are arranged in a random way,
are further apart, have more energy
( c ) The particles are far apart, are moving
very fast, are moving in all directions, have lots
of energy, and are arranged in a random way
( a ) The particles are close together, cannot
change place, vibrate, are arranged in rows, have
less energy
III. Answer these question
a) What is the boiling point?
It is the necessary quantity of heat to boil a liquid
b) Which are the principal factors of the condensation?
Pressure and temperature
c) Which is the difference between boiling and vaporization?
Vaporization is slow and happens to any temperature
d) What is the sublimation?
It is the change of the solid state to the gaseous without changing to the liquid state.
e) Why are melting points different between the substances?
Because the particles and force between them are different
IV. Now say whether these statements are true or false.
a) The solids are very compressible ……….( F )
b) Boiling is the process for which the solid changes to liquid ………..( F )
c) Every substance has a specific melting point……………….( V )
d) Evaporation is the rapid change of the liquid state to the gaseous ……( F )
e) The particles on the solids only can vibrate in it´s fixed position ………( V )