Materials that allow water to pass through them easily are
a. permeable.
b. impermeable.
c. saturated.
d. unsaturated

permeable

Explanation:

Permeable: Materials which allow water to pass through them. Example: Sand

Impermeable: Materials which do not allow water to pass through them. Example: Clay

Saturated: Solutions in which no more solute can be added to the solution at that particular temperature. Example: When sugar can be seen in the water

Unsaturated: Solutions which contain less than the maximum amount of solute that can be present at that temperature. Example: When sugar completely dissolves in water.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance