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3 years ago

Complete this equation for the dissociation of K3PO4(aq). Omit water from the equation because it is understood to be present.

Chemistry

2 answers:

alexira [117]3 years ago

6 0

The answer is:

K₃PO₄ (aq) → 3K⁺ (aq) + PO₄³⁻ (aq)

<h2>Further Explanation </h2>

The chemical change could be an action that always produces interchange of chemical compounds. The initial compounds or compounds involved within the reaction are called reactants. Chemical reactions are usually characterized by chemical changes and can produce one or more products that sometimes have different characteristics from reactants. Classically, chemical reactions involve changes involving the movement of electrons within the formation and breaking of chemical bonds, although the final concept of chemical reactions may be applied to the transformation of elementary particles like in nuclear reactions. Different chemical reactions are used together in chemical synthesis to provide the required compound product. In biochemistry, a series of chemical reactions catalyzed by enzymes form a metabolic pathway, where synthesis and decomposition that are normally impossible within the cell are administered.

Grouping of chemical reactions

The variety of chemical reactions and approaches employed in studying them result in many ways to classify those reactions, which frequently overlap. Below are samples of the classification of chemical reactions that are usually used.

Four basic reactions

1. Synthesis

In a direct combination reaction or synthesis, two or more simple compounds combine to create new, more complex compounds. Two or more reactants that react to provide one product is additionally the simplest way to understand if it's a synthesis reaction.

2. Decomposition

Decomposition or analysis reactions are the alternatives of synthesis reactions. A more complex compound is lessened into simpler compounds.

3. Single replacement

In a single replacement or substitution reaction, one element replaces another single element during a compound.

4. Double replacement

In a double replacement reaction, two compounds change ions or bonds to create different new compounds. This happens when the cations and anions of two different compounds move from one place to a different and form 2 new compounds.

In chemistry, the equation of a reaction or chemical equation is that the symbolic writing of a chemical change. The formula of the reagent is written to the left of the equation and also the formula of the merchandise is written to the proper. The coefficient written to the left of a formula could be a stoichiometric coefficient, which describes the number of that substance involved during a reaction relative to a different substance. The reaction equation was first made by the iatrochemist Jean Beguin in 1615. during a reaction equation, reagents and products are connected by different symbols. The symbol → is employed for one-way reactions, ⇆ for two-way reactions, and ⇌ equilibrium reactions.

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definition of The chemical reaction brainly.com/question/9606415

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Details

Grade: College

Subject: Chemistry

keywords: chemical equation

Anna35 [415]3 years ago

3 0

Balanced chemical reaction (dissociation): K₃PO₄(aq) → 3K⁺(aq) + PO₄³⁻(aq).
K₃PO₄ is potassium phosphate, <span>a water-soluble </span>ionic salt.
In water potassium phosphate, ionic compound, dissociates on positive potassium ion (cations) and negative phosphate ions (anions).
Potassium has positive charge (+1), compound has neutral charge.

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Honors Stoichiometry Activity Worksheet

vaieri [72.5K]

Explanation: Here, we will be considering 1 cup is equal to 1 mol.

2 water + sugar + lemon juice → 4 lemonade

Moles of water present in 946.36 g of water $=\frac{946.36 g}{236.59 g/mol}=4 mol$

Moles of sugar present in 196.86 g of water $=\frac{196.86 g}{225 g/mol}=0.8749 mol$

Moles of lemon juice present in 193.37 g of water $=\frac{193.37 g}{257.83 g/mol}=0.7499 mol$

Moles of lemonade in 2050.25 g of water $=\frac{2050.25 g}{719.42 g/mol}=2.8498 mol$

As we can see that number of moles of lemon juice are limited.

So, we will consider the reaction will complete in accordance with moles of lemon juice.

1 mole lemon juice reacts with 2 mol of water,then 0.7499 mol of lemon juice will react with:

$\frac{2}{1}\times 0.7499 mol = 1.4998 mol$ of water

Mass of water used = 1.4998 mol × 236.59 g/mol=354.8376 g

Water remained unused = 946.36 g - 354.8376 g =591.5223 g

1 mole lemon juice reacts with mol of sugar,then 0.7499 mol of lemon juice will react with:

$\frac{1}{1}\times 0.7499 mol = 0.7499 mol$ of water

Mass of sugar used = 0.7499 mol × 225 g/mol = 168.7275 g

Sugar remained unused = 196.86 g - 28.1325 g

1 mole of lemon juice gives 4 moles of lemonade.

Then 0.7499 mol of lemon juice will give:

$\frac{4}{1}\times 0.7499 mol=2.996 mol$ of lemonade

Mass of lemonade obtained = 2.996 mol × 719.42 g/mol = 2157.9722 g

Theoretical yield of lemonade = 2157.9722 g

Experimental yield of lemonade = 2050.25 g

Percentage yield of lemonade:

$\frac{\text{Experimental yield}}{\text{theoretical yield}}\times 100$

$\frac{2050.25 g}{2157.9722 g}\times 100=95.00\%$

The percentage yield of lemonade is 95% and ingredient which remained unused were water and sugar.

6 0

4 years ago

Predict the effect of an eightfold pressure increase on the equilibriunm composition of the reaction 3 Nalg) + H21g) =2 NaHlg)

aniked [119]

According to Le cha telier's principle when we increase the pressure of a equilibrium reaction the reaction shift to the side where few moles of gas present.

Your reaction (Notice - I guess the reaction you written is wrong, but still I'm solving with your given prediction)

3NaI (g) + H2 (g) = 2NaHI (g)

Where access of sodium iodide is reacting with Hydrogen gas to form NaHI molecule.

Number of moles of gas on reaction side - 3+2 = 5 moles

Number of moles of gas on product side - 2 moles

<em>Conclusion- the reaction will shift to the right of the reaction</em>

6 0

3 years ago

Read 2 more answers

if an endothermic reaction begins at 26°C and decreases by 2°C per minute how long will it take to reach 0°C?

KATRIN_1 [288]

Answer:

13 minutes

Explanation:

For the endothermic reaction to reach 0°C, it will take 13 minutes.

Let us follow the process step by step;

Rate of decrease is 2°C per minute.

Start is 26°C

Time temperature

0 min 26°C

1 min 24°C

2 min 22°C

3 min 20°C

4 min 18°C

5 min 16°C

6 min 14°C

7 min 12°C

8 min 10°C

9 min 8°C

10 min 6°C

11 min 4°C

12 min 2°C

13 min 0°C

4 0

3 years ago

A student mixes a solution of lead (II) nitrate with a solution of potassium iodide and notices the formation of a yellow solid.

ioda

Answer:

Lead (II) iodide

Explanation:

The reaction of lead (II) nitrate, Pb(NO₃)₂ with KI is:

Pb(NO₃)₂(aq) + 2KI(aq) → KNO₃(aq) + PbI₂(s)

This is a typical double-replacement reaction where anions and cations exchange its couple.

All nitrates are solubles, thus, KNO₃ is not the precipitate.

The only possibility of precipitate is PbI₂,

Lead (II) iodide, a yellow and insoluble solid...

5 0

3 years ago

Why is it important to know where a resource, that you're using, is renewable or nonrenewable?

NemiM [27]

Answer:

It is important to know if a resource is renewable or non-renewable because renewable resources are self-sustaining (unlike non-renewable resources). If a non-renewable resource is used too often, that resource may eventually become non-existant. This can also happen to renewable resources, but it is more difficult.

3 0

2 years ago