Chemistry, 25.08.2020 08:01 ojbank4411

What physical properties help us identify and classify materials?

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Answer from: WhiteWinterRose

Physical properties is that is value a state of the describes that physical system.

Explanation:

Physical property is that perform physical system can be used to the momentary and to referred the physical quantity.

Physical property is to contain that they are not model property and often to the extensive and intensive property they are process not combined.Physical property is to produced to the intensive property is not depend on size and the system or extensive property is to the show all the relationship.Physical property is to the direction and property to the spatial observations.Physical property is the interception to the reflective property to the surface of the light and its called secondary.Physical property is to the similar way in the atomic structure, property to the underline the atomic structure to the quantum structure.Physical property is to contain the object to used to the classical mechanics, to the optical and electrical property.Physical property is the many way to produced :- area, color, density, distribution, electric change, hardness , length, opacity, and strength.

Answer from: Quest

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

Answer from: Quest

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

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