Question

A simple way to estimate whether a molecule is a strong electrolyte, a weak electrolyte, or a nonelectrolyte is to examine an equation that accurately describes its behavior in water. When examining the chemical equations, start by looking at the direction and type of reaction arrow. A chemical equation reported in the literature may include a forward reaction arrow (→), equilibrium reaction arrow (⇌), or reverse reaction arrow (←). Next, determine whether ions are likely to be present and, if present, in what quantities they should be present.

Answer 1

Answer:

Explanation:

We classify the behaviours of electrolytes based on their electrolytic conduction. This is what makes them breaks down when in aqueous solutions with water.

A strong electrolyte is one that ionize completely when in aqueous solutions. Their ionization can be shown below using appropriate chemical notation:

   An example of a strong electrolyte is NaCl:

                NaCl $_{aq}$ → Na⁺$_{aq}$ + Cl⁻$_{aq}$

Such reactions have a single forward arrow. Since they ionize complete, they have a large amoung of ions present in their aqueous form and would readily conduct.

A weak electrolyte is made up of compounds that ionize partially or slightly in their aqueous solution. The amount of ions produced per mole of compounds is relatively small compared to those of strong electrolytes. Examples ae organic acids, weak bases, and water. This ionization is shown below for methanoic acid:

    HCOOH$_{aq}$ ⇄ HCOO⁻$_{aq}$ + H⁺$_{aq}$

This sort of reaction is an equilibrium reaction. This is why we have the double arrow.

None electrolytes do not ionize at all in aqueous solutions and they produce no ions.

Answer 2

Chemical equations are symbolic representations of chemical reactions where the reactant entity is given on the left side and the product entity is on the right side. The coefficient next to the symbol and entity formula is the absolute value of the stoichiometric number.

Further Explanation

The arrow symbol that is usually used is used to distinguish between different types of reactions. To show the type of reaction.

The chemical reaction formula shows the process of how one thing becomes another. Most often, this is written in the format:

Reactants → Products

The right arrow is the most common arrow in a chemical reaction formula. The direction shows the direction of the reaction.

Double arrows indicate reversible reactions. Reactants become products and products can become reactants again using the same process.

Two arrows with a single thorn pointing in the opposite direction show a reversible reaction if the reaction is in equilibrium.

This arrow is used to show the equilibrium reaction where again the arrow points to the stronger side of the reaction.

The reaction above shows a product that is stronger than the reactants. The lower reaction shows the reactants are preferred over the product.

Single Double Arrows are used to indicate resonance between two molecules.

Typically, the reactants will be the resonant isomers of the product.

Curved arrows with single spines on arrows indicate the path of electrons in the reaction. Electrons move from tail to head.

Curved arrows are usually displayed on individual atoms in a skeletal structure to indicate where the electron will be moved from within the product molecule.

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Details

Grade:  College

Subject:  Chemistry

keywords: Chemical equations