Concept explainers
Interpretation:
To describe whether paper torned into several pieces is a physical change or not.
Concept Introduction:
In the physical property, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example changing in physical state like ice melts into water.
In the chemical property, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. Like sodium readily reacts with water and farms another compound.
In the chemical change substance lose the identity while in the physical change substance does not lose the identity.
Interpretation:
To describe whether mixing of two clear solutions to produce a yellow solid is a physical change or not.
Concept Introduction:
In the physical property, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example changing in physical state like ice melts into water.
In the chemical property, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. Like sodium readily reacts with water and farms another compound.
In the chemical change substance lose the identity while in the physical change substance does not lose the identity.
Interpretation:
To describe whether burning of match in air is a physical change or not.
Concept Introduction:
In the physical property, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example changing in physical state like ice melts into water.
In the chemical property, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. Like sodium readily reacts with water and farms another compound.
In the chemical change substance lose the identity while in the physical change substance does not lose the identity.
Interpretation:
To describe whether dissolving of sugar in water is a physical change or not.
Concept Introduction:
In the physical property, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example changing in physical state like ice melts into water.
In the chemical property, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. Like sodium readily reacts with water and farms another compound.
In the chemical change substance lose the identity while in the physical change substance does not lose the identity.
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Introductory Chemistry
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- A radiation of intensity l0 = 2.5x1010 photos s-1 cm2 affects a dispersion and produces a transmittance of 0.1122. How much incident radiation is absorbed by the music screen?arrow_forwardIf a radiation intensity l0 = 2.5x1010 fotones s-1 cm2 causes a dissolución and an absorbance of 0.95 will be recorded. How much incident radiation is absorbed by the music screen?arrow_forwardFrom the causes of the detection of a spectral band of a spectrum obtained by a signal in the gaseous phase that is indicated, you can avoid or minimize those that have their origin in:a) the Doppler effectb) collisionsc) the life time of the excited statearrow_forward
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