Marie stirs 4 grams of salt and 10 grams of sand together in a paper cup. she then stirs 5 grams of salt and 4 gram
of sand in another cup. she asks earl what he observes in the cups. he reports seeing grains of salt and grains of
sand. what is the best description of what marie made in the cups?
o two heterogeneous mixtures
o two different substances
o two different compounds
o two homogeneous mixtures

Option (a) is the correct answer.

Explanation:

A mixture in which solute particles are unevenly distributed into the solvent then it is known as a heterogeneous mixture.

For example, salt and sand mixed in water is a heterogeneous mixture.

A homogeneous mixture is defined as the mixture in which solute particles are evenly distributed in a solvent.

A homogeneous mixture is a clear solution.

For example, salt dissolved in water is a homogeneous mixture.

Components of a mixture never combine chemically with each other.

Thus, we can conclude that two heterogeneous mixtures is the best description of what Marie made in the cups.

hloride, what is the mass of calcium in

explanation:

the answer for sodium is 0.186

the answer for rubidium is 0.251