Because you can separate seashells and marbles with your hands and you can't with copper sulfate
Chocolate is a mixture because you can separate the components. In a compound you can not separate the components because they are chimically bonded. In chocolate you can separate the ingredients because they are NOT chemicly combined; therefore, chocolate is a mixture.
puke
A very well mixed mixture: a solution. You can't see the separate particles.
Distilation in the end should separate a liquid into two sparate liquids.
steel can be separated by smashing it and picking out the parts of this mixture.
Separation by fltering.
I don't
A magnet
htyyyujufi
Sand, marbles, and water can be a mixture.
It depends on what is in the mixture. If it's cake batter with flour, sugar, salt, butter, etc. then yeh it's basically impossible. But if it's a mixture of marbles and sand then you can easily separate those.
Its a soloution
Try to use a sieve.
It is a heterogeneous mixture because you can distinguish between the different colored marbles. The mixture is not the same throughout.
it's a mixture !
Seashells are not made out of only carbon. They are a mixture of compounds. Calcium carbonate is a main compound in them.
In a beaker put in some marbles and 20ml of water.Using a filter funnel and filter paper let the water soak through the filter paper.