Possible Questions Flashcards
Explain why lake and seawater are good conductors of electricity while pure water is not.
Seawater and lake water are good conductors of electricity because they contain many ions. Pure water does not contain the ions
Why do some substances have no odour, and what relation does this have with the attraction of the particles?
Substances with no odour consist of particles with very strong attraction. When the particles are tightly compacted, the odour can’t escape/
If a substance:
-has a high melting point
-is hard
-is able to form electrolytes
-is soluble,
then is it ionic or covalent? Provide an explanation.
This is an ionic compound because these are all characteristics that a ionic compound consists of.
What is the Law of Conservation of Mass
In any given chemical reaction, the total mass of the reactants equals to the total mass of the products.
