An ion is a atom or groups of atoms that has an electrical charge
Responda
True
False
Questão 3
Questão
When heating a solid it loses energy which causes them to melt
Responda
True
False
Questão 4
Questão
Diffusion is when the particle moves between each other.
Responda
True
False
Questão 5
Questão
Filtration is used to separate a solid from a solution
Responda
True
False
Questão 6
Questão
Simple Distillation helps you obtain a solvent from a solution
Responda
True
False
Questão 7
Questão
Fractional Distillation only works if all substance have the same boiling points
Responda
True
False
Questão 8
Questão
A solution of sand and salt was given to a student. His job was to separate them and get its purest from of salt. Tick the correct answer of method the student used to separate sand and salt.
Responda
The student used a spoon to collect all the sand grains out from the salt.
The student used water to dissolve the salt, separating the salt and sand.
The student used water to dissolve the sand, and used filter paper to separate sand from salt.
The student mixed salt and water, then filtered the sand. The water was crystallized later on.
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