The part of the leaf containing the xylem and phloem is the:

Can someone tell me how to differentiate if a given salt is acidic, basic, or neutral?

satela [25.4K]

$\bold{\huge{\underline{ Solution }}}$

<h3>Basic Characteristic of acids </h3>

Acids are sour in taste
Acid turns blue litmus paper or solution into red litmus paper or solution
Acids are good conductor of electricity because it dissociate into cation in aqueous solution
Acids classified into edible acids and non edible acids. Non edible acids are very hazardous
Generally, All acids are soluble in water
Acids have PH smaller than 7

Arrhenius definition of acids :-

According to Arrehinus,

Acids are those substances which when dissolve in water given H positive ions . Then, this hydrogen ions combine with water to form H30 + ions

Second definition of Acids was given by Bonsted Lowry :-

According to Bonsted Lowry

Acids are the proton donors that is when acids dissociate into water gives hydrogen ions that is H+ ions

3rd definition was given by Lewis 

According to Lewis

Acids are those substances which have the ability to accept a pair of electrons .

Example of Acids

HNO3 :- Nitric acid
H2SO4 :- Sulfuric acid
HCl :- Hydrochloric acid

<h3>Basic characterists of bases </h3>

Bases are bitter in taste
Bases turns red litmus paper into blue litmus paper or solution
Bases are also good conductor of electricity because on dissociation it produces anion in aqueous solution
Bases are also good conductor of electricity
When bases are soluble in water then they are known as alkaline base
Bases have PH greater than 7

Arrehinus definition of bases :-

According to Arrehinus ,

Bases are those substances which when dissolve in water produce OH negative ions that is hydroxide ions

Bonsted Lowry definition 

According to Bonsted Lowry

Bases are the proton donors as they produce OH negative ions in dissociation in aqueous solution

Lewis definition 

According to Lewis

Acids are those substances which have the ability to lose electrons that is they are electron donors.

Example of bases

Ca(OH)2 :- Calcium hydroxide
NaOH :- Sodium hydroxide
KOH :- Potassium hydroxide

[ Note :- There are so many Lewis acids and bases but they are not Arrhenius or Lowry acids or bases ]

<h3>Basic characteristic of salt </h3>

Salts are the ionic compounds which are composed of acids and bases that cation and anion
Salts are generally found in oceans and seas in the forms of crystals
As they are composed of acids and bases so they are neutral in nature but the salt of strong acid or weak base is acidic in nature or vice versa
Salts are also good conductor of electricity as they form ionic bond
Generally, All salts are soluble in water.
The PH of common Salt is 7

Example of salts

NH4Cl :- Ammonium chloride
CuSO4 :- Copper sulphate
NaCl :- Sodium chloride

6 0

3 years ago

What are the types of connective tissue? Describe each type, and give an example of each.

In-s [12.5K]

Answer:

he major types of connective tissue are connective tissue proper, supportive tissue, and fluid tissue. Loose connective tissue proper includes adipose tissue, areolar tissue, and reticular tissue.

Explanation:

3 0

3 years ago

Why must all deadlier pesticides be developed?

alex41 [277]

Due to the other pesticides have outgrown their strength on today’s insects. All must be accompanied by mass paperwork for safety.

8 0

3 years ago

Make a conclusion about the following question: What is the relationship between the volume of a gas and the pressure exerted on

Alinara [238K]

The relationship would be inversely proportional, meaning that as the volume increases, the pressure decreases, and the opposite is true as well, as the pressure increases, the volume decreases.

3 0

3 years ago

A mixture of hydrogen and nitrogen gases is placed in a 1.0 L reaction vessel and the reaction is allowed to reach equilibrium a

e-lub [12.9K]

Answer:

a. 0.27 = Kc

b. 8.19×10⁻⁵ = Kp

Explanation:

The reaction is this: 3H₂(g) + N₂ (g) ⇄ 2NH₃ (g)

As we have the moles of each in the equilibrium and the volume is 1L, we assume the concentrations as molarity.

1.6981 mol/L → H₂

0.5660 mol/L → N₂

0.8679 mol/L → NH₃

Let's make the expression for Kc

Kc = [NH₃]² / [N₂] . [H₂]³

Kc = 0.8679² / 0.5660 . 1.6981³

Kc = 0.27

Let's calculate Kp, derivated from Kc

Kp = Kc . (RT)^Δn where:

Δn is the difference between final moles - initial moles. It is governed by stoichiometry. For this case 2 - (1+3) = -2

Δn it is always for gases

R is the Ideal gases constant

T is Absolute T°

Let's replace data → 0.27 . (0.082 . 700K)⁻² = Kp

8.19×10⁻⁵ = Kp

8 0

3 years ago