What happens when a pure substance undergoes a chemical changes?

What happens when a pure substance undergoes a chemical changes?
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when a pure substance undergoes a chemical change it is nolonger that same substance. A chemical change changes the identityof the substance. Hope i helped
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What happens when a pure substance undergoes a chemical changes?

Description : What happens when a pure substance undergoes a chemical changes?

Last Answer : when a pure substance undergoes a chemical change it is nolonger that same substance. A chemical change changes the identityof the substance. Hope i helped

What refers to the pressure at which a pure substance changes phase at a given temperature?  A. Equilibrium pressure  B. Saturation pressure  C. Superheated pressure  D. Subcooled pressure

Description : What refers to the pressure at which a pure substance changes phase at a given temperature?  A. Equilibrium pressure  B. Saturation pressure  C. Superheated pressure  D. Subcooled pressure

Last Answer : Saturation pressure

What refers to the temperature at which a pure substance changes phase at a given pressure?  A. Equilibrium temperature  B. Saturation temperature  C. Superheated temperature  D. Subcooled temperature

Description : What refers to the temperature at which a pure substance changes phase at a given pressure?  A. Equilibrium temperature  B. Saturation temperature  C. Superheated temperature  D. Subcooled temperature

Last Answer : Saturation temperature

Pick out the wrong statement (A) Co-current absorbers are usually used, when the gas to be dissolved in the liquid is a pure substance (B) In case of gas absorption, HETP is equal to HTU, when both the operating line & the equilibrium lines are parallel (C) Hatta number is important in case of gas absorption with chemical reaction (D) In actual practice, absorption is an endothermic process, while stripping is an exothermic process

Description : Pick out the wrong statement (A) Co-current absorbers are usually used, when the gas to be dissolved in the liquid is a pure substance (B) In case of gas absorption, HETP is ... reaction (D) In actual practice, absorption is an endothermic process, while stripping is an exothermic process

Last Answer : (D) In actual practice, absorption is an endothermic process, while stripping is an exothermic process

The chemical potential for a pure substance is __________ its partial molal free energy. (A) More than (B) Less than (C) Equal to (D) Not related to

Description : The chemical potential for a pure substance is __________ its partial molal free energy. (A) More than (B) Less than (C) Equal to (D) Not related to

Last Answer : (C) Equal to

Gibbs free energy per mole for a pure substance is equal to the (A) Latent heat of vaporisation (B) Chemical potential (C) Molal boiling point (D) Heat capacity

Description : Gibbs free energy per mole for a pure substance is equal to the (A) Latent heat of vaporisation (B) Chemical potential (C) Molal boiling point (D) Heat capacity

Last Answer : (B) Chemical potential

Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is (A) 0 (B) 1 (C) ∞ (D) None of these

Description : Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance ... temperature and pressure is (A) 0 (B) 1 (C) ∞ (D) None of these

Last Answer : (B) 1

At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is (A) Zero (B) One (C) Infinity (D) Negative

Description : At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is (A) Zero (B) One (C) Infinity (D) Negative

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A substance that has a fixed chemical composition is known as ______ substance.  A. Monoatomic  B. Heterogeneous  C. Homogeneous  D. Pure

Description : A substance that has a fixed chemical composition is known as ______ substance.  A. Monoatomic  B. Heterogeneous  C. Homogeneous  D. Pure

Last Answer : Pure

Which one of the following processes during decomposition is correctly described? (a) Catabolism – Last step in the decomposition under fully anaerobic condition (b) Leaching – Water soluble inorganic nutrients rise to the top layers of soil (c) Fragmentation – Carried out by organisms such as earthworm (d) Humification – Leads to the accumulation of a dark coloured substance humus which undergoes microbial action at a very fast rate.

Description : Which one of the following processes during decomposition is correctly described? (a) Catabolism - Last step in the decomposition under fully anaerobic condition (b) Leaching - Water soluble inorganic ... of a dark coloured substance humus which undergoes microbial action at a very fast rate.

Last Answer : (c) Fragmentation – Carried out by organisms such as earthworm

_________ is a substance which undergoes spontaneous combustion. a) wood b)coal c)sodium d)cow dung cakes

Description : _________ is a substance which undergoes spontaneous combustion. a) wood b)coal c)sodium d)cow dung cakes

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Statement S. After implantation, the uterine endometrium undergoes changes to become decidus Reason R. the placenta in described as deciduous type Cor

Description : Statement S. After implantation, the uterine endometrium undergoes changes to become decidus Reason R. the placenta in described as deciduous type Cor

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Description : Which layer of uterus undergoes cyclic changes during menstrual cycle

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Description : When a wave changes speed as it enters a new medium at an angle it undergoes diffraction?

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What state of matter undergoes changes in volume most easily?

Description : What state of matter undergoes changes in volume most easily?

Last Answer : Gases adapt most easily to changes in volume.

What type of motion the fluid element undergoes, when it changes from one position to another position, such that the angle between the two sides changes? (A) Rotation (B) Translation (C) Linear deformation (D) Angular deformation

Description : What type of motion the fluid element undergoes, when it changes from one position to another position, such that the angle between the two sides changes? (A) Rotation (B) Translation (C) Linear deformation (D) Angular deformation

Last Answer : (D) Angular deformation

A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively) (A) Δ S1is always < Δ SR (B) Δ S1is sometimes > Δ SR (C) Δ S1is always > Δ SR (D) Δ S1is always = Δ SR

Description : A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the ... S1is sometimes > Δ SR (C) Δ S1is always > Δ SR (D) Δ S1is always = Δ SR

Last Answer : (C) Δ S1is always > Δ SR

The black cotton soil (A) Undergoes volumetric changes (B) Swells excessively when wet (C) Shrinks excessively when dry (D) All the above

Description : The black cotton soil (A) Undergoes volumetric changes (B) Swells excessively when wet (C) Shrinks excessively when dry (D) All the above

Last Answer : Answer: Option D

Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Isopropylbenzene (d) Nothing happens

Description : Benzene undergoes Friedel-Crafts reaction with isopropyl alcohol in the presence of H2SO4 catalyst to give (a) n-Propylbenzene (b) Benzophenone (c) Isopropylbenzene (d) Nothing happens

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Which of the following substances undergoes chemical change on heating? (1) Sodium chloride (2) Silica (3) Lead nitrate (4) Platinum wire

Description : Which of the following substances undergoes chemical change on heating? (1) Sodium chloride (2) Silica (3) Lead nitrate (4) Platinum wire

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Which of the following substances undergoes chemical change on heating? (1) Sodium chloride (2) Silica (3) Lead nitrate (4) Platinum wire

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Activated charcoal is employed to remove colouring matter from pure substance, it work? -Do You Know?

Description : Activated charcoal is employed to remove colouring matter from pure substance, it work? -Do You Know?

Last Answer : answer:

is chocolate chip cookie mix a pure substance or mixture?

Description : is chocolate chip cookie mix a pure substance or mixture?

Last Answer : Any cookie dough, or any dough for that matter is a mixture, because you mix different pure substances together.

what is the difference between a mixture ,a solution ,and pure substance

Description : what is the difference between a mixture ,a solution ,and pure substance

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Is bromine a compound impure substance mixture or a pure substance?

Description : Is bromine a compound impure substance mixture or a pure substance?

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How can you explain that even though you continue to add pure water into a substance even though the resultant pH might differ a little the acidity or alkalinity of substance still remains the same to?

Description : How can you explain that even though you continue to add pure water into a substance even though the resultant pH might differ a little the acidity or alkalinity of substance still remains the same to?

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Is cinnamon a mixture or a pure substance?

Description : Is cinnamon a mixture or a pure substance?

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What is a pure substance made of 2 or more types of atoms?

Description : What is a pure substance made of 2 or more types of atoms?

Last Answer : This is a chemical compound.

How do the components of a mixture differ from the components of a pure substance?

Description : How do the components of a mixture differ from the components of a pure substance?

Last Answer : The concentrations of the components of a mixture may vary.However, a pure substance has a definite composition that does notvary.

Is chromium a pure substance or a mixture?

Description : Is chromium a pure substance or a mixture?

Last Answer : Pure substance.

Is apple juice with no pulp a mixture or a pure substance?

Description : Is apple juice with no pulp a mixture or a pure substance?

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How is it possible that there are millions of pure substance even though there are only about 100 different elements?

Description : How is it possible that there are millions of pure substance even though there are only about 100 different elements?

Last Answer : The elements chemically combine to form compounds, which are also pure substances.

Is liquid air a mixture or a pure substance?

Description : Is liquid air a mixture or a pure substance?

Last Answer : Liquid air is a mixture.

Is sandstone a pure substance?

Description : Is sandstone a pure substance?

Last Answer : No, sandstone is not a pure substance. Sandstone is a mixture of eroded rock particles (grains of sand) that have been put under pressure over millions of years until they have formed a ... mainly of sand-sized mineral particles or rock fragments. Sandstone is mainly composed of quartz or feldspar.

Is saltpeter a pure substance or mixture?

Description : Is saltpeter a pure substance or mixture?

Last Answer : Saltpeter (KNO3) is a compound.

Is a salt substitute a pure substance or mixture?

Description : Is a salt substitute a pure substance or mixture?

Last Answer : Mixture

Is lemonade pure substance or mixture?

Description : Is lemonade pure substance or mixture?

Last Answer : a mixture

Why is a lava lamp an exeample of pure substance?

Description : Why is a lava lamp an exeample of pure substance?

Last Answer : What is the answer ?

Why is a example of a pure substance?

Description : Why is a example of a pure substance?

Last Answer : What is the answer ?

Is nickel a pure substance or a mixture?

Description : Is nickel a pure substance or a mixture?

Last Answer : Nickel is a chemical element, and as such, it is a puresubstance.

Why is the sugar a pure substance while the snack is not a pure substance?

Description : Why is the sugar a pure substance while the snack is not a pure substance?

Last Answer : What is the answer ?

What is two or more substances that are together but do not combine to form a new pure substance?

Description : What is two or more substances that are together but do not combine to form a new pure substance?

Last Answer : What is the answer ?

What is a pure substance whose smallest unit is made of atoms of more than one element?

Description : What is a pure substance whose smallest unit is made of atoms of more than one element?

Last Answer : Compound

Is candy a mixture or a pure substance?

Description : Is candy a mixture or a pure substance?

Last Answer : Need answer

Is saltpeter a pure substance or mixture?

Description : Is saltpeter a pure substance or mixture?

Last Answer : Saltpeter (KNO3) is a compound.

Is sandstone a pure substance?

Description : Is sandstone a pure substance?

Last Answer : No, sandstone is not a pure substance. Sandstone is a mixture of eroded rock particles (grains of sand) that have been put under pressure over millions of years until they have formed a ... mainly of sand-sized mineral particles or rock fragments. Sandstone is mainly composed of quartz or feldspar.

Is a salt substitute a pure substance or mixture?

Description : Is a salt substitute a pure substance or mixture?

Last Answer : Mixture

Is lemonade pure substance or mixture?

Description : Is lemonade pure substance or mixture?

Last Answer : a mixture

Is nickel a pure substance or a mixture?

Description : Is nickel a pure substance or a mixture?

Last Answer : Nickel is a chemical element, and as such, it is a puresubstance.

Is **** a mixture or a pure substance?

Description : Is beer a mixture or a pure substance?

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