science consolidation 2.0 Flashcards
What happens to the pressure of a gas when it is heated at constant volume?
It increases.
In which two states are the particles randomly arranged?
Particles are randomly arranged in liquid and gas.
In which state are the particles only able to vibrate in a fixed position?
Particles in a solid can only vibrate in an fixed position.
Which state cannot flow from place to place?
Solids cannot flow from place to place.
Particles in which state have no bonds?
Particles in gases have no bonds.
Particles in which state sit in a regular pattern and are held together tightly by bonds?
Particles in solids sit in a regular pattern and are held together tightly by bonds.
What happens to the pressure of a gas when it is heated at constant volume?
When the temperature of a gas is increased, its pressure increases.
When 100 grams of water is boiled, what mass of steam is made?
100 grams of steam would be produced because of the conservation of mass.
What is the definition of solid?
The substance that cannot be compressed.
Is sand a solid?
Yes.
what is the difference between mixture and solution?
Mixture contains two or more substances, which are not chemically combined. A solution contains two substances that are chemically mixed to form a new compound.
Give 3 examples of a solution.
salt water, rubbing alcohol and sugar dissolved in water.
What is the definition of Chromatography?
It is the method of separating colours.
What is the definition of dissolve
When a solid mixes in with a liquid so it is no longer visible.
what is definition of evaporation?
process of removing the liquid from a dissolved solid by warming the mixture until all the liquid turns to gas
what is definition of filtration?
process of separating a mixture of an insoluble solid and liquid e.g sand and water.
what is definition of fractional distillation?
process of separating a mixture of liquids.
what is definition of insoluble?
Its mean when a solid cannot be dissolve.
what is definition of a mixture?
Two or more substance not chemically joined.