All categories

3 years ago

Does anyone know how to determine if a reaction is a redox or not?

Chemistry

1 answer:

Aliun [14]3 years ago

7 0

The reaction is included in a redox reaction

Further explanation:

Given

Reaction

2 Ca + O₂ → 2 CaO

Required

a redox reaction

Solution

Redox reactions are reactions where there is a change in oxidation number

Oxidation is an increase/increase in oxidation number, while reduction is a decrease/decrease in oxidation number.

Reducing agents are substances that experience oxidation and oxidizing agent are substances that experience reduction

in the above reaction is included in a redox reaction because there is a change in oxidation number

Ca⇒Ca²⁺+ 2e⁻(for balanced equation : 2Ca⇒2Ca²⁺+4e⁻)

Oxidation ( 0 to +2)

O₂+2e⁻⇒O²⁻(for balanced equation : O₂+4e⁻⇒2O²⁻)

Reduction (0 to -2)

You might be interested in

What are some potential traits that are needed to become a super athlete?

konstantin123 [22]

Answer: Confidence, strength, potential

Explanation:

5 0

3 years ago

Read 2 more answers

Earth's oceans contain many dissolved elements like calcium, sodium, and chlorine. These elements plus several others combine to

Korolek [52]

C because minerals contain sodium

4 0

3 years ago

Read 2 more answers

In order to separate the components of a binary mixture, the relative volatility should be a) less than unity b) equal to unity

Tresset [83]

Answer: Option (c) is the correct answer.

Explanation:

A binary mixture is defined as the mixture which contains two components in the aqueous medium. The two components are solute and solvent.

And, volatility is defined as the ability of a liquid solution or substance to readily change into vapors.

For a binary solution the expression for relative volatility is as follows.

$\alpha = \frac{\frac{y_{i}}{x_{i}}}{\frac{y_{j}}{x_{j}}}$ = $K_{i}/K_{j}$

where, $\alpha$ = relative volatility of more volatile component i

$y_{i}$ = vapor-liquid equilibrium concentration of component i in the vapor phase

$x_{i}$ = vapor-liquid equilibrium concentration of component i in the liquid phase

$y_{j}$ = vapor-liquid equilibrium concentration of component j in the vapor phase

$x_{j}$ = vapor-liquid equilibrium concentration of component j in the liquid phase

So, when $\alpha$ > 1 then separation by distillation is easier in nature.

Thus, we can conclude that in order to separate the components of a binary mixture, the relative volatility should be greater than unity.

8 0

3 years ago

For the reaction 2A(g) â B(g), the equilibrium constant is Kp = 0.76. A reaction mixture initially contains 4.0 atm of gas (PA =

timofeeve [1]

Answer: (a) The reaction mixture will proceed toward products.

Explanation:

Equilibrium constant is defined as the ratio of pressure of products to the pressure of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_p$

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

$2A(g)\rightleftharpoons B(g)$