Why this reaction is not an example of alpha decay?

krypton-89 into rubidium-89.

Answer:

It takes 7 mol H2 to produce 7 mol H2O

Explanation:

In 2H2O, there's 2 moles of H2 for every 1 mol O2.

So, if oxygen is limiting you'd only be able to produce 2 moles of H2O. I don't know if the question implies that, so it could also be that 7 mol H2 makes 7 mol H2O. Sorry for the confusion, I hope it helps a bit

Answer:

b. Malic Acid

Explanation:

Malic (organic) Acid is found in apple.

GL

The number of possible Microstates there are for 6 molecules to fit in 6 boxes, when 4 molecules are pointing right and 2 molecules are pointing left are; 15 Microstates

This is very much similar to combination problems in mathematics.

Hence, the number of ways to arrange all six molecules according to the given description is;

Hence, we have; (6×5)×4!/(2!) ×4!

Therefore, we have; 30/2×1

Hence, the number of possible Microstates is; 15 Microstates

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One of the impacts of the specific heat of water on the planet is that Islands and coastal places have moderately pleasant climates. Option A.

The specific heat of water refers to its ability to absorb and retain heat. Due to water's high specific heat, it can absorb and release large amounts of heat energy without experiencing significant temperature changes.

This property has a moderating effect on climate, particularly in coastal and island regions. Water bodies, such as oceans and seas, act as heat sinks, absorbing excess heat during the day and releasing it at night.

This helps to stabilize temperatures, resulting in more moderate and pleasant climates in coastal and island areas compared to inland regions.

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Answer:

It's motor oil and brake fluid

Answer:

here

Explanation:

This is the electron configuration of the element carbon.

Answer:

1.61 g

Explanation:

The freezing point depression of water due to the presence of salt can be calculated using the equation:

ΔTf = Kf × molality

where ΔTf is the freezing point depression, Kf is the freezing point depression constant for water (1.86 °C/m), and molality is the molal concentration of the solution.

Since ocean water freezes at approximately -1.8 °C, the freezing point depression is:

ΔTf = -1.8 °C - (-0.0 °C) = -1.8 °C

The molality of the solution can be calculated as:

molality = moles of solute / mass of solvent (in kg)

Assuming that all the dissolved salt is sodium chloride (NaCl), the molar mass of NaCl is 58.44 g/mol. Therefore, the number of moles of NaCl in the solution is:

moles of NaCl = mass of NaCl / molar mass of NaCl

moles of NaCl = (2.62 kg) × (35.0 g/kg) / 58.44 g/mol

moles of NaCl = 1.57 mol

The mass of water in the solution is:

mass of water = total mass of solution - mass of NaCl

mass of water = (2.62 kg) - (0.035 kg) = 2.585 kg

Therefore, the molality of the solution is:

molality = 1.57 mol / 2.585 kg = 0.607 mol/kg

Using the freezing point depression equation, we can solve for the mass of NaCl:

ΔTf = Kf × molality

-1.8 °C = 1.86 °C/m × 0.607 mol/kg × (1000 g/1 kg)

-1.8 °C = 1122.42 g/mol × x

x = 1.61 g

Therefore, the mass of sodium chloride in a 2.62-kg sample of ocean water is 1.61 g.

Answer:

C₂H6

Explanation:

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A

A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:

A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.

B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.

D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.

Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.

In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A

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no  ls eb vb vj lfn  nbf,   l mgñ rlr  o

The amount of KNO₃ would dissolve in 100g of water at 50 degrees celcuis to make a saturated solution is 44 g.

To create a saturated solution of KNO₃ in 100g of water at 50 degrees Celsius, the following steps should be taken:

Step 1: Find out the mass of the solvent in the saturated solution.

The solvent is water in this instance. So, using the formula for the mass of a solution, we can calculate the mass of the solvent in the saturated solution as follows:

Mass of solvent = Mass of solution - Mass of solute

= 100 g - Mass of KNO₃

Step 2: Determine the amount of solute that would be dissolved in the solution to make it saturated.

The mass of KNO₃ that would dissolve in 100 g of water at 50°C to create a saturated solution is 56g/100g of water.

Step 3: Calculate the mass of KNO₃ that would dissolve in 100g of water to make a saturated solution.

Mass of KNO₃ = Solubility of KNO₃ × Mass of solvent

Mass of KNO₃ = 56 g/100 g × (100 g - Mass of KNO₃)

Now, let's solve for Mass of KNO₃;

56 = 56g(100-Mass of KNO₃)/100100 - Mass of KNO₃ = 100

Multiply both sides of the equation by 100 to obtain;

5600 - 100 Mass of KNO₃ = 100

Mass of KNO₃ = 5600/10100 - 56

= 44 g

Therefore, 44 g of KNO₃ would dissolve in 100g of water to make a saturated solution.

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Answer:

until it gets bright white or smells bad, then throw it out

Explanation:

Answer:

6-8 hours if left in a room temperature area

4 hours if left in a heated area

24 hours if left in an insulated cooler with an ice pack

Explanation:

have a nice day <3

Answer:

Weak acids don't fully dissociate in the solvent, whereas strong acid do.

Explanation:

Answer:  Strong acids dissociate fully in water to produce the maximum number of H + ions. ... Weak acids, such as ethanoic acid (CH 3COOH), do not fully dissociate

Explanation:

Los ácidos fuertes se disocian completamente en agua para producir el máximo número de iones H +. ... Los ácidos débiles, como el ácido etanoico (CH 3COOH), no se disocian completamente

The value of the rate of disappearance is 4x10² m/s.

Solution:

- d[03] /DT = 2/3 d/dt [02]

= 2/3 x 6 x 10⁻⁴

= 4x10² m/s.

The vanishing rate value is always negative because the reactant concentration is consumed in the reaction. The product is formed in a reaction, so the rate of occurrence value is always positive. The rate of reaction is defined as the rate of disappearance of reactants and the rate of appearance of products.

The reaction rate is usually expressed as the concentration of reactants consumed or the concentration of products formed per unit time. The reaction rate can be calculated by dividing the change in the amount of reactants or products by the time required, as shown in the following equation.

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Answer:

Explanation:

Decomposition reaction, also known as analysis or dissociation, is a type of chemical reaction in which a compound breaks down into simpler substances or elements. In this reaction, a single reactant undergoes a chemical change and produces two or more products.

The decomposition reaction can be represented by the general equation:

AB → A + B

Where AB is the reactant, and A and B are the products. The reactant AB is usually a compound, and it breaks down into its constituent elements or simpler compounds.

There are different types of decomposition reactions, including:

Thermal decomposition: It occurs when a compound is heated, resulting in its decomposition into simpler substances. For example, the thermal decomposition of calcium carbonate (CaCO3) produces calcium oxide (CaO) and carbon dioxide (CO2):

CaCO3 → CaO + CO2

Electrolytic decomposition: It takes place when an electric current is passed through an electrolyte, causing it to break down into its component ions. For instance, the electrolysis of water (H2O) leads to the decomposition into hydrogen gas (H2) and oxygen gas (O2):

2H2O → 2H2 + O2

Photochemical decomposition: It occurs when a compound undergoes decomposition due to exposure to light energy. Chlorine gas (Cl2) can decompose into chlorine atoms (Cl) under the influence of light:

Cl2 → 2Cl

These are just a few examples of decomposition reactions. They are important in various chemical processes and are used in industries, laboratory experiments, and natural phenomena. By understanding and controlling decomposition reactions, scientists can gain insights into the behavior of different compounds and develop practical applications in fields such as chemistry, materials science, and environmental science.

Answer:

Explanation:

reaction in which a compound breaks down into simpler substances or elements

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The chemical formula Mn₂(CO₃)₃ represents a compound composed of manganese (Mn) and carbonate (CO₃) ions and contains 2 manganese atoms, 9 carbon atoms, and 9 oxygen atoms.

To determine the number of atoms of each element in the compound, we need to break down the formula and analyze the subscripts.

Breaking down the formula

- Mn₂ indicates that there are two manganese atoms in the compound.

- (CO₃)₃ indicates that there are three carbonate ions in the compound. Each carbonate ion consists of one carbon atom (C) and three oxygen atoms (O).

Analyzing the carbonate ion

Since there are three carbonate ions in the compound, we need to multiply the number of atoms in each ion by three:

- There are three carbon atoms (C) in each carbonate ion, so in total, there are 3 x 3 = 9 carbon atoms.

- There are three oxygen atoms (O) in each carbonate ion, so in total, there are 3 x 3 = 9 oxygen atoms.

Summing up the atoms

- Manganese (Mn): 2 atoms

- Carbon (C): 9 atoms

- Oxygen (O): 9 atoms

Therefore, the compound Mn₂(CO₃)₃ contains 2 manganese atoms, 9 carbon atoms, and 9 oxygen atoms.

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This is an incomplete question, here is a complete question.

Which of the following is the correct word equation for the reaction described below? When sulfuric acid reacts with sodium hydroxide, sodium sulfate and water form.

(1) sulfuric acid + sodium hydroxide → sodium sulfate + water

(2) sulfuric acid → sodium hydroxide + sodium sulfate + water

(3) sodium sulfate + water → sulfuric acid + sodium hydroxide

(4) sodium sulfate + sulfuric acid → sodium hydroxide + water

Answer : The correct option is, (1)

Sulfuric acid + Sodium hydroxide → Sodium sulfate + Water

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

In the balanced chemical equation, the reactants and products are separated by a right arrow.

In the equation, the species present on the left side of the right arrow is known as reactant and the species present on the right side of the right arrow is known as product.

According to the question, when sulfuric acid reacts with sodium hydroxide then it gives sodium sulfate and water as a product.

The complete word equation for the reaction will be:

Sulfuric acid + Sodium hydroxide → Sodium sulfate + Water

The expected potential measurement after adding 30.0 ml of 0.10 M Fe3+ titrant to 25 ml of 0.050 M Sn2+ is not possible to determine without additional information, such as the standard reduction potential of the reaction or the half-cell potentials of the electrodes.

To determine the potential of a redox reaction, one needs to know the standard reduction potential of the reaction or the half-cell potentials of the electrodes.

The measured potential will depend on the concentrations of the reactants and products and the conditions of the electrode surfaces. Therefore, without additional information about the experimental setup, it is not possible to accurately predict the potential measurement.

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C6H12O6 is the chemical formula of hexose sugar if the molar mass is 180.16 g/mol and empirical formula is CH2O.

The empirical formula for hexose sugar is CH2O, which indicates that each molecule of hexose sugar contains one carbon atom, two hydrogen atoms, and one oxygen atom.

To determine the molecular formula, we need to know the molar mass of the compound, which is given as 180.16 g/mol. The molar mass of the empirical formula (CH2O) is 30.03 g/mol (12.01 g/mol for carbon + 2.02 g/mol for hydrogen + 16.00 g/mol for oxygen).

To find the molecular formula, we need to divide the molar mass by the empirical formula mass:

Molecular formula mass = Molar mass / Empirical formula mass

Molecular formula mass = 180.16 g/mol / 30.03 g/mol

Molecular formula mass = 6

This means that the molecular formula must be a multiple of the Empirical formula (CH2O) by a factor of 6.

The molecular formula for hexose sugar can be determined by multiplying the empirical formula by 6:

C6H12O6

Therefore, the chemical formula for hexose sugar is C6H12O6.

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Answer:

A, B, D

Explanation:

Ed22

Explanation:

cooked rice

nutrient

carbohydrate.

Boiler eggs

nutrient

Protein.

To determine the number of moles of water produced in the given reaction 2C8H18(g) + 25O2(g) → 16CO2(g) + 18H2O(g), we need to compare the stoichiometric coefficients of water (H2O) with the other reactants and products. From the balanced equation, it can be concluded that 18 moles of water are produced for every 2 moles of C8H18 consumed.

The balanced equation shows that for every 2 moles of C8H18 consumed, 18 moles of H2O are produced. This ratio is obtained by comparing the stoichiometric coefficients of water and C8H18 in the balanced equation.

Therefore, if we have a known amount of C8H18 and want to determine the corresponding moles of water produced, we can use the ratio:

moles of H2O = (moles of C8H18) x (18 moles of H2O / 2 moles of C8H18)

The ratio of 18 moles of H2O to 2 moles of C8H18 indicates that for every 2 moles of C8H18, 18 moles of H2O are produced in the reaction.

Using this ratio, you can calculate the number of moles of water produced by multiplying the number of moles of C8H18 by the ratio of 18 moles of H2O to 2 moles of C8H18.

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Answer:the reaction is nuclear i think

Explanation:

yes sure, true it can beee

Answer:

False

Explanation:

The binary compound formed from barium ions and fluoride ions would be BaF₂.

So, the correct answer is E.

This is because barium has a 2⁺ charge and fluoride has a 1- charge. In order to balance the charges, two fluoride ions are needed for every barium ion. The formula for this compound is BaF₂, where Ba represents barium and F represents fluoride.

This compound is a white, crystalline solid that is commonly used in the production of optical lenses and in the manufacturing of ceramics. It is also used in the dental industry as a material for fillings and crowns due to its high resistance to acid erosion and wear

Hence,the answer of the question is E.

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The use of a large excess of alcohol can shift the equilibrium in the Fischer esterification to the right.

Fischer or Fischer-Speier esterification is a special type of esterification involving the formation of an ester by refluxing a carboxylic acid and an alcohol using an acid catalyst.

The structure, molecular weight and type of alcohol have a marked influence on the rate of esterification and the degree of conversion at equilibrium.

Another factor that can shift the Fischer esterification equilibrium to the right is temperature.

An increase in temperature can also amplify the equilibrium production, as occurs in most steriflcation reactions, but this comes to a controlled stop due to the boiling point of the alcohol of the acid, which is avoided if the reactor is works under pressure, allowing this to increase the temperature.

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