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3 years ago

What does a negative change in entropy indicate?

Chemistry

1 answer:

const2013 [10]3 years ago

8 0

Answer: Hi there your answer would be

A negative change in entropy indicates that the disorder of an isolated system has decreased. For example, the reaction by which liquid water freezes into ice represents an isolated decrease in entropy because liquid particles are more disordered than solid particles.

Hope this helped

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The sharing of electrons between the oxygen atom and two hydrogen atoms form a

Sholpan [36]

Answer:

The answer is covalent bond

Explanation:

when oxygen atom and two hydrogen atoms are combined, water molecule is formed according to the equation;

2H2 + O2 ==> 2H2O

Water is a covalent compound.

A covalent bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full outer shell, corresponding to a stable electronic configuration.

8 0

4 years ago

Use the following: Chlorine is used to bleach cloth. Excess Chlorine is destroyed by its reaction with Sodium Thiosulfate (Na2S2

vovangra [49]

Answer:

Explanation:

Na₂S₂O₃ + 4Cl₂ + 5H₂O → 2NaHSO₄ + 8HCl.

4 moles 8 moles

4 moles of Cl₂ forms 8 moles of HCl

.25 moles of Cl₂ forms 8 x .25 / 4 moles of HCl

HCl formed = .50 moles .

E is the answer .

3 0

3 years ago

Please somebody help I have no idea what the correct answer is! (iii) and (iv)

brilliants [131]

Since phosphoric acid is H3PO4, which is known from PO4, with a charge of 3- so 3 hydrogen would balance it out, and sodium hydroxide is NaOH, it can be assumed that it results in H3(OH)3 + Na3PO4.

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4 years ago

(there are 2 quetions) how is heat being transfered in:

alekssr [168]

Answer:

Heat energy is transferred from homes by conduction through the walls, floor, roof and windows. It is also transferred from homes by convection. For example, cold air can enter the house through gaps in doors and windows, and convection currents can transfer heat energy in the loft to the roof tiles.
Convection is the heat transfer due to the movement of a fluid, such as a gas or liquid, and carries heat energy away from the source of heat. When a substance is heated, it causes its particles to vibrate more. The more vibration, the more space they will take up and the less dense they will become.

I really hope it helps! ❤

7 0

3 years ago

Read 2 more answers

Are the statements about hydrogen bonding of the compound below with water true or false? this compound can act as a hydrogen-bo

Lyrx [107]

I searched for complete question (as your question is missing with structure) and found the structure of compound attached below.

Answer:
The compound can neither act as a Hydrogen Bond Donor nor act as a Hydrogen Bond Acceptor.

Explanation:
For two compounds to build Hydrogen Bond Interactions it is compulsory that they must contain Hydrogen atoms which are directly attached to most electronegative atoms like Fluorine, Oxygen and Nitrogen.
As the given compound is 2-Butene (a non polar hydrocarbon), it lacks partial positive Hydrogen (which can act as Hydrogen Bond Donor) and a most electronegative element (F, O or N) which can act as Hydrogen Bond Acceptor. Therefore, this compound will not generate any Hydrogen Bonding with water molecules and will remain immiscible in it.

4 0

3 years ago

What does a negative change in entropy indicate?​

What does a negative change in entropy indicate?