1) Mix can be divided on components using physical methods like filtration, of evaporation, or distillation and so on. But substance cannot.
2) Substance contains only one kind of the molecules (particles) , but mix can contain several kinds of molecules.
Taking into account the definition of density, the density of the sample is 0.5
.
It is necessary yo know that density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.
In other words, density allows you to measure the amount of mass in a certain volume of a substance.
Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

In this case, you know:
Then, replacing in the definition of density:

Solving:
<u><em>density= 0.5 </em></u>
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Finally, the density of the sample is 0.5
.
Learn more about density:
Answer: A
Explanation: Protons and neutrons form the nucleus of the atom, with electrons orbiting it.
Answer:
Yes, the investigations will reach similar conclusions about the reactivity of H2 and Cl2
Explanation:
1. The law of multiple proportions says that when elements form compounds, the proportions of the elements in those chemical compounds can be expressed in small whole number ratios. This means that regardless of whether 1000 times more of the products are used, the reactivity of the products is established by the chemical reaction
2. The law of multiple proportions is an extension of the law of definite composition, which states that compounds will consist of defined ratios of elements.
3. A reaction with more reactants will need more care because more products are produced, which can be toxic
4. H2 and Cl2 reactivity does not depend on the quantities but the chemical properties of each compound
Answer:To absorb small amounts of water in an organic solution.
Explanation:A drying agent is added to absorb small amounts of water, usually from an organic solution after its separation from an aqueous solution.