why does his apple tastes less sour after 15 days ​

Answer:

Nitrogen and Argon

Explanation:

These gases are part of a class of "noble" gases because they don't react with anything.

NH4+ is the conjugate acid of NH3., The formula for the conjugate acid of F− is HF , Cl − Chloride ion  for the conjugate acid of  HCl.

NH4+ is the conjugate acid of NH3.

The formula for the conjugate acid of F− is HF

Cl − Chloride ion  for the conjugate acid of  HCl Hydrogen chloride

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Answer:

A conjugate acid is the product that is different from a base by one proton.

Explanation:

What is a conjugate acid Example?

A conjugate acid is the product that is different from a base by one proton. Examples of conjugate acids include water (base) reacting with an acid to form the hydronium ion (conjugate acid), and ammonia (base) reacting with an acid to form the ammonium ion (conjugate acid).

The conjugate of HF:

So as we know, a conjugate base is simply an acid that has given up a proton. In the case of HF (hydrofluoric acid), once it donates the H+ ion/proton, it becomes F- (fluoride ion). The remaining F- is the conjugate base of HF and conversely, HF is the conjugate acid of F-.

The conjugate of HCL:

If a species is classified as a strong acid, its conjugate base will be weak.[3] An example of this case would be the dissociation of hydrochloric acid HCl in water. Since HCl is a strong acid (it dissociates to a great extent), its conjugate base (Cl−) will be a weak conjugate base. Therefore, in this system, most H+ will be in the form of a hydronium ion H3O+

instead of attached to a Cl− anion and the conjugate base will be weaker than a water molecule.

Conjugate base of HCl in the following reaction is: HCl(aq)+H2O→Cl−(aq)+H3O+.

The conjugate of NH:

Normally the conjugate acid of a weak base is a strong acid, however, the conjugate acid of the weak base NH3 is a weak acid, NH4+.A conjugate acid-base pair is an acid-base pair that differs only by one proton.Conjugate acid When a proton is added to a base, a conjugate acid is formed.Conjugate acids have one extra proton compared to the species that is forming it.Conjugate acid of NH3.The given species is ammoniaNH3.The conjugate acid of NH3 is NH4+.

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Answer:

675 K

Explanation:

\(\dfrac{P_1V_1}{T_1}=0.03\ \text{atm L/K}\)

Presión del sistema 2 = \(P_2=4.5\ \text{atm}\)

Volumen del sistema 2 = \(V_2=4500\ \text{mL}=4.5\ \text{L}\)

De la ley de los gases ideales tenemos la relación

\(\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\\\Rightarrow 0.03=\dfrac{4.5\times 4.5}{T_2}\\\Rightarrow T_2=\dfrac{4.5\times 4.5}{0.03}\\\Rightarrow T_2=675\ \text{K}\)

La temperatura del sistema para el segundo sistema es 675 K.

Answer:

Explanation:

To calculate the amount of water produced from the reaction of H3PO4 and LiOH, we can use stoichiometry. We will use the balanced chemical equation:

H3PO4(aq) + 3LiOH(aq) = 3H2O(l) + Li3PO4(aq)

The equation tells us that 1 mole of H3PO4 reacts with 3 moles of LiOH to produce 3 moles of H2O and 1 mole of Li3PO4.

First, we need to convert the amount of H3PO4 (3.35 g) to moles:

3.35 g H3PO4 / 98 g/mol = 0.0342 mol H3PO4

Next, we'll use the mole ratio from the balanced equation to determine the amount of LiOH required:

0.0342 mol H3PO4 * (3 mol LiOH / 1 mol H3PO4) = 0.1026 mol LiOH

Finally, we'll use the mole ratio from the balanced equation to determine the amount of water produced:

0.0342 mol H3PO4 * (3 mol H2O / 1 mol H3PO4) = 0.1026 mol H2O

Converting the amount of water produced (0.1026 mol) to grams:

0.1026 mol H2O * 18 g/mol = 1.84 g H2O

So, if 3.35 grams of H3PO4 react completely with LiOH, 1.84 grams of water would be produced.

Answer:

Option D. fluorine-18

Explanation:

The attached photo gives the explanation.

In the attached photo, A zX represent the atom that will undergo beta decay to produce oxygen–18.

After the calculation, A zX was found to be fluorine–18.

Answer:

Global wind

Explanation:

The jet streams go around the whole earth from west to east

Hope you have a good day :)

The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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Answer:

the third option

Hope this helps

The kinetic energy of the electron be, in j is 4.1766 × 10⁴⁹.

Kinetic energy is the power an object has because of its motion. If we want to boost up an object, then we must follow a force. making use of force requires us to do paintings. After work has been accomplished, energy has been transferred to the object, and the object might be moving with a new consistent speed.

Calculation:-

wavelength = 189.1 nm

                   = 189.1 × 10⁻⁹ m

c = λf

f  =  189.1 × 10⁻⁹ m / 3 × 10⁸

   = 63.033  × ⁻ ¹⁷

kinetic energy = hf

                         = 6.626 × 10⁻³⁴ ×  63.033  × ⁻ ¹⁷

                         = 417.66 × 10⁻⁵¹

                          = 4.1766 × 10⁴⁹

The kinetic energy of an item is the electricity that it possesses because of its motion. it is defined because the work needed to boost up a frame of a given mass from relaxation to its stated pace. Having gained this energy for the duration of its acceleration, the frame maintains this kinetic electricity except for its pace changes.

Potential energy saved energy that relies upon the relative position of numerous components of a gadget. A spring has greater potential energy when it is compressed or stretched. A steel ball has extra capability strength raised above the ground than it has after falling to Earth.

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The atomic ratio of carbon to oxygen in carbon monoxide (CO) is 1:1, and the atomic ratio of carbon to oxygen in carbon dioxide (CO₂) is 2:1.

Firstly, we can analyze the decomposition of carbon monoxide (CO) and carbon dioxide (CO₂) to determine the atomic ratios involved.

Let's denote the atomic ratio of carbon to oxygen in carbon monoxide as x, and the atomic ratio of carbon to oxygen in carbon dioxide as y.

According to the given data;

Decomposition of carbon monoxide (CO);

Oxygen produced = 3.36 g

Carbon produced = 2.52 g

We know that the atomic mass of carbon is 12 g/mol, and the atomic mass of oxygen is 16 g/mol. Using these values, we can calculate the number of moles for each element;

Number of moles of oxygen = mass / atomic mass = 3.36 g / 16 g/mol = 0.21 mol

Number of moles of carbon = mass / atomic mass = 2.52 g / 12 g/mol = 0.21 mol

Since the atomic ratio of carbon to oxygen in carbon monoxide is x, we can write the following equation;

0.21 mol C / (0.21 mol O) = x

Simplifying the equation, we have;

x = 1

Therefore, the atomic ratio of carbon to oxygen in carbon monoxide is 1:1.

Decomposition of carbon dioxide (CO₂);

Oxygen produced = 9.92 g

Carbon produced = 3.72 g

Following the same calculations as before;

Number of moles of oxygen = mass / atomic mass = 9.92 g / 16 g/mol = 0.62 mol

Number of moles of carbon = mass / atomic mass = 3.72 g / 12 g/mol = 0.31 mol

Since the atomic ratio of carbon to oxygen in carbon dioxide is y, we can write the following equation;

0.31 mol C / (0.62 mol O) = y

Simplifying the equation, we have;

y = 0.5

Therefore, the atomic ratio of carbon to oxygen in carbon dioxide is 1:0.5, which can be simplified to 2:1.

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--The given question is incomplete, the complete question is

"Missed this? watch kcv: atomic theory; read section 2.3. you can click on the review link to access the section in your text. carbon and oxygen form both carbon monoxide and carbon dioxide. when samples of these are decomposed, the carbon monoxide produces 3.36 g of oxygen and 2.52 g of carbon, while the carbon dioxide produces 9.92 g of oxygen and 3.72 g of carbon. Calculate the atomic ratio of carbon to oxygen in carbon monoxide, and carbon dioxide."--

Answer:

1.Because my coffee was too cold, I heated it in the microwave.

2. Although he was wealthy, he was still unhappy.

3. She returned the computer after she noticed it was damaged.

Explanation:

..

Answer:

it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons).

Explanation:

So in all of the answers it would be A. Protons and Electrons

Answer:

The answer is d. induced dipole-induced dipole

Explanation:

I did the test.

Answer:

D: induced dipole-induced dipole

Explanation:

The balanced chemical equation is one that represents the same number of atoms on both the reactant and product sides of the reaction. The coefficients provide the ratios of the substances that react and form in the reaction.

The procedure for balancing a chemical equation is as follows:

Step 1: Write the unbalanced chemical equation for the reaction.

Step 2: Determine the number of atoms of each type present on the reactant and product sides of the chemical equation.

Step 3: To achieve an equal number of atoms of each element on the left and right sides of the equation, introduce coefficients.

Step 4: Verify that the chemical equation is balanced by counting the atoms of each element on each side of the equation.

Examples of balanced chemical equations are:4Fe + 3O2 → 2Fe2O3C2H2 + 3O2 → 2CO2 + H2O2Na + Cl2 → 2NaCl.

Therefore, the correct answers are 4Fe + 3O2 → 2Fe2O3, C2H2 + 3O2 → 2CO2 + H2O, and 2Na + Cl2 → 2NaCl.

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The epimoric carbon where a ring closes is also known as the anomeric carbon. The epimoric carbon is a carbon atom in a sugar molecule that has a different configuration of substituents than another sugar molecule. When a sugar molecule forms a ring, the epimoric carbon where the ring closes is known as the anomeric carbon.

The anomeric carbon is the carbonyl carbon (C=O) that becomes a new chiral center when the ring is formed. Epimoric carbon is the chiral centre due to which two disteriomers are different from each other like glucose and mannose are epimors to each other because they are different at only C1 carbon also galactose and glucose are also C4 epimers to each other. So epimoric carbon can be 1,2,3 or any but anomeric carbon will always be C1 like alpha glucose and beta glucose are anomers to each other also reducing sugars are those which have free anomeric carbon.

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Answer:

yes they're gay

Answer:

Copper(II) nitrate and potassium hydroxide are soluble ionic compounds, which implies that they dissociate completely when dissolved in water to produce ions. ... You can thus say that the balanced chemical equation that describes this double ...

Cu(NO3)2(aq)+2KOH(aq)→Cu(OH)2(s)⏐⏐↓+2KNO3(aq).

Explanation:

Answer:

A and C

Explanation:

Just did the test

The butterflies all live in the same place and the butterflies are all the same species. Hence, options A and C are correct.

A species is often defined as a group of organisms that can reproduce naturally with one another and create fertile offspring.

The butterflies come down at night and gather in clusters. A cluster of butterflies is called a roost or a bivouac. Monarchs migrate alone. They do not travel in flocks the way many birds do.

Hence, options A and C are correct.

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The correct number of p orbital electrons in the cyclopentadienyl anion is 6.

The cyclopentadienyl anion (C5H5-) consists of a cyclic structure with five carbon atoms. Each carbon atom contributes one electron to form a pi (π) bond with the neighboring carbon atom, resulting in a system of delocalized pi electrons. Since pi bonds are formed by p orbital overlap, each carbon atom contributes one p orbital electron to the delocalized system.

In the cyclopentadienyl anion, there are 5 carbon atoms, and each carbon atom contributes one p orbital electron, resulting in a total of 5 p orbital electrons. Additionally, the anion carries an extra electron, bringing the total number of p orbital electrons to 6.

Therefore, the correct answer is 6.

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The correct description of chemical equilibrium is: the rate of reaction of reactant molecules to form products is the same as the rate of reaction of product molecules to form reactants. Correct option is d.

Chemical equilibrium is a state where the forward and reverse reactions occur at the same rate, maintaining constant concentrations of products and reactants. It is important to note that equilibrium doesn't mean equal concentrations of products and reactants; it means their rates of conversion are equal.

The frequencies, velocities, or concentrations of the molecules are not necessarily identical. In a chemical equilibrium, the system is in a dynamic balance, and the relative concentrations of reactants and products remain constant over time, as long as no external factors are changed (e.g., temperature, pressure, or concentration).

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Explanation:

(a):their malleability:

>iron making. iron worker heat the meat and hammer it to give them the desired shape.

> in the jewelry making process, like the gold or silver you wear are results due to the malleability of metal

(b):their ductility:

>for the making of high tension cable that connects different cities for transferring of electricity.

>for making wire gauze

(c):their ability to conduct electricity:

>for lighting up your house with light bulbs

>for using cooking stoves

>to make refrigerator work.

Answer:

a)gold and silver-used to make jewellery

b)gold and copper(we draw them in wires easily because they are not brittle)

c)copper and iron(this is because both of them are metal and metaps are best conductors of electricity)

Explanation:

uses of copper- to make utensils

to make wires for circuits

uses of silver-to make jewellery

to make mirrors

malleability is the property of a meta in which the metal can be changed into different shapes.

Ductility-can be drawn into thin wires.

If a chemist wishes to prepare a buffer that will be effective at a ph of 5.00 at 25°c, the best choice would be an acid component with a ka equal to 9.10 x 10⁻⁶.

Define  buffer solutions

A buffer is a substance that can withstand a pH change when acidic or basic substances are added. Small additions of acid or base can be neutralised by it, keeping the pH of the solution largely constant. For procedures and/or reactions that call for particular and stable pH ranges, this is significant.

A buffer must contain an acid component with a pKa near to the required pH for it to function at a pH of 5.00. We can compute pKa using the equation pKa = -log(Ka) to determine the optimal option. The ideal choice of Ka corresponds to the pKa that is closest to 5.00.

pKa = -log(9.10 x 10⁻⁴) = 3.04

pKa = -log(9.10 x 10⁻⁶) = 5.04

pKa = -log(9.10 x 10⁻⁸) = 7.04

The best choice is with a Ka equal to 9.10 x 10⁻⁶.

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Answer:

b. contains only valence electrons.

Explanation:

In Lewis dot diagram valence electrons are shown by the dots around the symbol of an atom. Consider the example of sodium fluoride.

Electron dot diagram is attached below.

Sodium is alkali metal and present in group one. It has one valence electron. All alkali metal form salt when react with halogens.

Sodium loses its one electron to get stable.  While all halogens have seven valence electrons they need only one electron to get stable electronic configuration.

When alkali metals such as sodium react with halogen fluorine it loses its one valence electron which is accepted by fluorine and ionic bond is formed. The compound formed is called sodium fluoride.

Na + F   →   NaF

Answer:

here is the answer

tell me is it helpful

Answer:

j

Explanation:

nwjwjw

dodkekds

dldldle

Answer:

igneous rock

Explanation:

After using the Balanced equation the answer is The 36 gram of water can be made.

What is Balanced equation?

A balanced equation is a chemical equation in which the total number of atoms of each element on the left side of the equation is equal to the total number of atoms of that element on the right side of the equation. This means that the equation is balanced in terms of mass and charge, and all atoms are accounted for. A balanced equation is essential to ensure that the chemical reaction is accurate and that the correct amount of products are produced. Additionally, a balanced equation can help in the calculation of reaction rates and equilibrium concentrations.

The molar mass of O is 16g and Hydrogen is 1g in H2O there is one oxygen only but in question is given 32g of oxygen so, 2 moles of oxygen should be there so it will become 32g that means 2H2O so overall 2[2*1+16] = 36g.

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Answer:

C

Explanation:

You can use process of elimination to get your answer.

A & D would be advantages of using celcius thermometers so they are eliminated.

B can be useful if you need to know what temperature water boils at, making it an advantage so it is eliminated.

This leaves C, the only option choice that sounds like a disadvantage. This is seen as it explains how the mercury inside could harm the user if the thermometer.

1. nacl:4.51,2.na2so4:9.02, 3.na3po4:13.53, 4.nan03:4.51 moles of na, moles of sodium are there in 4.51 moles of the following compounds

In 1 mole of NaCl, there are 1 mole of Na. In 1 mole of Na2SO4, there are 2 moles of Na. In 1 mole of Na3PO4, there are 3 moles of Na. In 1 mole of NaNO3, there are 1 mole of Na.

NaCl: 4.51 moles * 1 mole Na/1 mole NaCl = 4.51 moles of Na

Na2SO4: 4.51 moles * 2 moles Na/1 mole Na2SO4 = 9.02 moles of Na

Na3PO4: 4.51 moles * 3 moles Na/1 mole Na3PO4 = 13.53 moles of Na

NaNO3: 4.51 moles * 1 mole Na/1 mole NaNO3 = 4.51 moles of Na

The number of moles of solute that are dissolved in a specific volume is indicated by the concentration metric known as molarity (M). Applying the rule of three would be as follows: If there are 6.4 moles of NaCl in 1 litre of solution,

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