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3 years ago

How does rock candy relate to the igneous rock formation?

Chemistry

1 answer:

sveta [45]3 years ago

6 0

Answer:

The candy is heated then cooled, turning solid like a igneous rock.

Explanation:

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Food in the stomach is broken down by powerful acids and turned into?

zheka24 [161]

<span>In this particular item, we are to determine how we call the acidic fluid-like substance that is formed after the food in the stomach is broken down by a powerful acid. The answer to this question is CHYME. The powerful acid that is referred in this item is more specifically gastric juices. </span>

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4 years ago

Read 2 more answers

How is black oxide converted into red oxide

Cloud [144]

Answer:

The usual way of converting black oxide to red oxide involves treating the black oxide with sulphuric acid and then roasting the intermediate product thus formed. lt is known that the amount of acid can be considerably less than the stoichiometric amount needed to convert all the black oxide to a sulphate.

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3 years ago

In chemical reactions, kinetics is related to _______________, whereas thermodynamics is related to ___________________.

STALIN [3.7K]

Thermodynamics tells us what can occur during a process, while kinetics tell us what actually occurs.

<h3>What is Thermodynamics?</h3>

Thermodynamics is the branch of study that examines the possible states that material systems might take on and the potential changes in states that can arise either naturally or as a result of interactions between systems. The Greek terms thermé (heat) and dynamics were used to create the English phrase "thermodynamics" (force).

<h3>What is Kinetics?</h3>

Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is to be contrasted with thermodynamics, which deals with the direction in which a process occurs but in itself tells nothing about its rate.

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2 years ago

When electricity passes through a gas it may become hot enough to give off light how could scientist determine the element from

galina1969 [7]

They can tell the element by how it reacts

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4 years ago

Consider the two reduction half-reactions: Na+(aq) + e− LaTeX: \longrightarrow⟶ Na(s) Eo = −2.71 V Cl2(g) + 2 e− LaTeX: \longrig

Juli2301 [7.4K]

Answer:

(i) Δ $E^{o}_{cell} }$ = <u>-4.07v</u>

(ii)Δ $G^{o}_{rxn}$ = <u>+785.510 KJ</u>

(iii)<u> The reaction is for an electrolytic cell</u>

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Explanation:

In this question, we are tasked with calculating Δ $E^{o}$ and Δ $G^{o}_{rxn}$ for the reaction and determine if the reaction is for a voltaic or electrolytic cell.

We proceed as follows;

Firstly, we write the complete equation of reaction as shown below;

$2Na^{+}$ + $2Cl^{-}$ → $2Na_{(s)}$ + $Cl_{2(g)}$

We can see that chlorine goes from a negative state to zero state. This is indicative of loss of electron which is defined as <u>oxidation</u>

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We can also see that sodium went from a positive state to zero state which is indicative of electron gain which is defined as <u>reduction</u>

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Mathematically, the value of Δ $E^{o}_{cell} }$ for the reaction can be calculated using the formula below;

Δ $E^{o}_{cell} }$ = Δ $E^{o}_{reduction} }$ - Δ $E^{o}_{oxidation} }$ = -2.71v - 1.36v = -4.07V

The value of Δ $G^{o}_{rxn}$ can be calculated as follows;

Δ $G^{o}_{rxn}$ = -nFΔ $E^{o}_{cell} }$

Where n = 2 and F is 96,500C . We plug these values to get;

Δ $G^{o}_{rxn}$ = -2 × 96,500C× -4.07V = 785,510J = 785.510KJ (1KJ = 1000J)

Now, we answer if this reaction is for a voltaic or an electrolytic cell;

It is for an <u>electrolytic cell </u>because electrons flow from cathode to anode as indicated by magnitude of the Δ $G^{o}_{rxn}$ (positive in value)

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3 years ago