aldehydes and ketones prefer to fragment by ___ which produces a resonance stabilized acylium ion

Answer:

I believe it is platinum

Explanation:

I think it is, haha

Answer:

zinc

Explanation:

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Isotopes undergo radioactive decay because thermodynamics generally governs the situation. Every atom strives to have the greatest degree of stability. When the number of protons and neutrons in the atomic nucleus is out of balance, instability results in radioactive decay. In essence, the nucleus contains too much energy to keep all the nucleons together.

Radioactive decay a the spontaneous process through which an unstable atomic nucleus breaks into smaller, more stable fragments.

Three Types of Radioactive Decay:

Alpha Decay:

       When an alpha particle basically a helium nucleus with two protons and two neutrons is ejected, the parent's atomic number and mass number are reduced by two and four, respectively.

Beta Decay:

      A stream of electrons from the parent, known as beta particles, is released during beta decay, and a neutron in the nucleus is changed into a proton. The new nucleus has the same mass number, but an additional atomic number of one.

Gamma Decay:

        The atomic nucleus releases extra energy during gamma decay in the form of high-energy photons (electromagnetic radiation). The resultant nucleus takes on a more stable energy state while maintaining the same atomic number and mass number.

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There are 9.57 moles of sucrose in 8.7 L of a 1.1 M solution.

When a substance is dissolved in a solution, its concentration is usually expressed in moles per liter (M).

This is a measure of the number of moles of the solute per unit volume of the solution.

To calculate the number of moles of sucrose in 8.7 L of a 1.1 M solution, we can use the formula:

moles of solute = concentration x volume

where concentration is measured in moles per liter (M), and volume is measured in liters (L).

In this case, the concentration is 1.1 M and the volume is 8.7 L, so:

moles of sucrose = 1.1 M x 8.7 L

moles of sucrose = 9.57 moles

Therefore, there are 9.57 moles of sucrose in 8.7 L of a 1.1 M solution.

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The oxidation reaction is the chemical reaction in which the species loses electrons. The five oxidized ethanedioic acid molecules will produce 8 water molecules. Thus, option B is correct.

Half reaction equations are the representation of the reduction and the oxidation half of the whole reaction that denotes the gaining and losing of electrons differently.

The oxidation half of the reaction is given as:

HO₂CCO₂H → 2CO₂ + 2H⁺ + 2e⁻

The reduction half of the reaction will be given as:

MnO₄ + H⁺ → Mn²⁺ + H₂O

The overall reaction is written as:

C₂O₄ ⁻² + MnO₄⁻ + H⁺ →  CO₂ + H₂O + Mn²⁺

Here electrons are lost in the formation of carbon dioxide and electrons are gained when manganese is produced.

The total reaction is given as:

5 C₂O₄ ²⁻ + 2MnO₄ ⁻ + 16H⁺ → 10CO₂ + 8 H₂O + 2 Mn²⁺

Therefore, option B. five ethanedioic acid molecules produce 8 water molecules.

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Answer:

There are 1.0 * 10^9 seconds in 32 years.

Explanation:

To solve this problem, we will use dimensional analysis, or multiplying by fractions equivalent to 1.

We are starting with a value in years. Since we know that there are 365 days in 1 year, we can multiply the given value (in years) by 365 days/1 year to cancel out the units of years and convert to days:

32 years * 365 days/1 year = 11,680 days

Next, we can use the same idea to convert from days to hours:

11,680 days * 24 hours/1 day = 280,320 hours

And then again for hours to minutes and minutes to seconds:

280,320 hours * 60 minutes/1 hour * 60 seconds/1 minute

= 1009152000 seconds

This answer is quite large, so we will convert to scientific notation to make the value more manageable.

1009152000 seconds = 1.0 * 10^9 seconds

Therefore your answer is 1.0 * 10^9 seconds.

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Answer:

Determine the final temperature when a 25.0 g piece of iron at 85.0 °C is placed into 75.0 grams of water at 20.0 °C.

First some discussion, then the solution. Forgive me if the points seem obvious:

a) The colder water will warm up (heat energy "flows" in to it). The warmer metal will cool down (heat energy "flows" out of it).

b) The whole mixture will wind up at the SAME temperature. This is very, very important.

c) The energy which "flowed" out (of the warmer water) equals the energy which "flowed" in (to the colder water)

Explanation:

Answer: Double Replacement

Explanation:

Two elements are being switched around in this reaction, H and K, so it is a double replacement. The K from potassium hydroxide replaces the H in hydrobromic acid, becoming potassium bromide, and the H from hydrobromic acid replaces the K in potassium hydroxide, becoming water.

Answer:

78.5 mL

Explanation:

Step 1: Given data

Mass of the lead fishing weight: 39.7 g

Volume of water in the graduated cylinder: 75.0 mL

Step 2: Calculate the volume of the lead fishing weight

The density of lead is 11.34 g/mL.

39.7 g × (1 mL/11.34 g) = 3.50 mL

Step 3: Calculate to what volume will increase the water level

The final volume of water will be equal to its initial value plus the volume displaced by the lead fishing weight.

V = 75.0 mL + 3.50 mL = 78.5 mL

A standard unit of measurement is a quantifiable language that helps everyone understand the association of the object with the measurement. It is expressed in inches, feet, and pounds, in the United States, and centimeters, meters, and kilograms in the metric system.

Answer: B

Explanation:

There is an atom of one type of element and then two atoms of another type of element.

Acids and bases are chemical substances with contrasting properties. Acids taste sour, turn litmus paper red, and have a low pH. Bases taste bitter, turn litmus paper blue, and have a high pH. When an acid and a base react, they form a salt and water, resulting in a neutral solution.

Acids and bases are fundamental concepts in chemistry. Acids have a sour taste, such as vinegar or lemon juice, and turn litmus paper red. They also have a low pH value, indicating a high concentration of hydrogen ions (H+). On the other hand, bases have a bitter taste, like soap or baking soda, and turn litmus paper blue.

Bases have a high pH value, indicating a low concentration of hydrogen ions and a higher concentration of hydroxide ions (OH-). When an acid and a base react, they undergo a neutralization reaction, resulting in the formation of a salt and water. The salt is composed of a cation from the base and an anion from the acid. The resulting solution is neutral, with a pH of 7. Examples of salts include sodium chloride (table salt) and calcium carbonate (chalk). Alkalis are a type of base that can dissolve in water, forming hydroxide ions.

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The statements which are true about heterogeneous mixtures are they settle out, they exhibit the tyndall effect and they exhibit brownian motion.

Heterogeneous mixtures are those mixtures in which composition of their constituent partiles are not identical or even, they may vary place to place.

Hence, options (1), (2) & (4) are correct.

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Answer:

A,B,D

Explanation:

i got it right

The correct answer is 8. To determine the number of hydrogen atoms (H) in (NH4)2CO3, we need to count the number of H atoms in each of the constituent ions and then multiply by the number of ions present in the formula.

The (NH4)2CO3 formula contains two ammonium ions (NH4+) and one carbonate ion (CO32-). Each ammonium ion contains four hydrogen atoms, while the carbonate ion contains no hydrogen atoms.

Therefore, the total number of hydrogen atoms in (NH4)2CO3 is:

2 ammonium ions x 4 hydrogen atoms per ammonium ion = 8 hydrogen atoms

Thus, the correct answer is 8.

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Explanation:

Plate tectonics is the movement of the earth's lithosphere above the asthenosphere below.

The plate motion results in the formation of new crusts on the earth. Also, they result in the destruction of the crust where necessary.

The process is Divergent boundaries, creating new crust by plate tectonics.

Tectonic plates are present in the Lithosphere which are moving slowly.

These plates move in different ways:

Some are moving towards each other.

Some are moving away from each other.

These plates cause earthquakes, volcanos, and the formation of new crust.

In Divergent boundaries, the plates move away from each other, which forms a new crust.

Thus, due to the process is Divergent boundaries, new crusts are formed by plate tectonics.

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The reaction between 2-methyl-2-pentanol and sulfuric acid to yield 2-methyl-2-pentene goes via an elimination reaction

Elimination reactions are those that proceed by the removal of one or more atoms or functional groups from the reactants, resulting in the formation of a new double bond or π bond in a product. An example of an elimination reaction is the dehydration of alcohols.In this particular reaction, 2-methyl-2-pentanol (an alcohol) reacts with sulfuric acid to produce 2-methyl-2-pentene, which is an alkene.

The reaction mechanism proceeds via an elimination reaction, where the OH group and a hydrogen ion (H+) are removed from the reactant, resulting in the formation of a double bond between the adjacent carbon atoms in the product.The reaction can be represented as follows:CH3C(CH3)2CH(OH)CH3 + H2SO4 → CH3C(CH3)2C=CH2 + H2O + H2SO4In conclusion, the reaction between 2-methyl-2-pentanol and sulfuric acid to yield 2-methyl-2-pentene goes via an elimination reaction.

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Answer:

Electrons orbit the nucleus.

Answer:

electrons

Explanation:Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.

Answer:Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics.

Explanation:

Answer:

Explanation:

Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. 

hope it helps!

The chemical reactions in which oxidation and reduction reactions occur simultaneously are defined as the redox reactions. An oxidation-reduction reaction is also called a redox reaction.

A reaction which involves loss of electrons is known as oxidation whereas a reaction which involves gain of electrons is called the reduction. Oxidation can occur only if reduction also takes place side by side and vice versa.

An ionic equation is a chemical equation in which the formula of dissolved aqueous solutions are represented as individual ions. So an oxidation‐reduction reaction takes place in order to balance the ionic equation.

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The voltage across the 200 ohm circuit element, that draws a current of 4 A, is equal to 800 volts.

To find the voltage across a circuit element, take Ohm's Law, according to which the resistance (R) of a resistor is equal to the product of the current (I) that flows through it and the voltage (V) across it.

Use the values:

Current (I) = 4 A

Resistance (R) = 200 Ω

Using the formula of Ohm's Law:

V = I × R

V = 4 A × 200 Ω

V = 800 V

Voltage is  800 V.

Thus, the voltage across the 200 ohm circuit element, that draws a current of 4 A, is 800 volts.

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Refer to the attachment

Answer:

A siege engine is a device that is designed to break or circumvent heavy castle doors, thick city walls and other fortifications in siege warfare. Some are immobile, constructed in place to attack enemy fortifications from a distance, while others have wheels to enable advancing up to the enemy fortification.

Explanation:

When hydrogen and steam are both present in a gas at the same pressure and temperature, this is the ideal gas condition. This is so because according to the ideal gas law, an ideal gas's pressure, volume, and temperature are all precisely proportional to one another.

This indicates that when the two gases have the same temperature and pressure, the two gases will also have the same volume. As a result, the gases are in their ideal state, having the same volume and pressure but retaining their distinct chemical compositions.

This is perfect because it enables the two gases to interact with one another in a predictable way, allowing for the measurement and prediction of the gases' behaviour.

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Answer:

the ball will first change direction then change the direction and at last the ball will speed up until it falls to the ground.

Explanation:

Rodney hit a high fly ball over second base in a championship baseball game. Because the ball was also being acted on by the force due to gravity, the ball will first change direction then change the direction and at last the ball will speed up until it falls to the ground.

(force of gravity is exerted by the Earth on the object)

The value of δG° for the given reaction, at 25°C, using δH°f and ∆S° values is 107.49 kJ/mol.

The reaction is :

NH4Cl (s) → NH3 (g) + HCl (g)

The standard enthalpy of formation of NH4Cl(s),

ΔHof = -314.5 kJ/mol

The standard entropy of formation of NH4Cl(s),

ΔSof = 94.6 J/K/mol

The standard entropy of formation of NH3(g),

ΔSof = 192.5 J/K/mol

The standard entropy of formation of HCl(g),

ΔSof = 186.9 J/K/mol

∆G° can be calculated by using the formula,

∆G° = ∆H° - T∆S°

where,∆H° = Standard Enthalpy Change

∆S° = Standard Entropy Change

T = Temperature

Let's calculate ∆G°,

∆G° = {[∆Hof (NH3) + ∆Hof (HCl)] - ∆Hof (NH4Cl)} - T {[∆Sof (NH3) + ∆Sof (HCl)] - ∆Sof (NH4Cl)}

Convert all the values into J as the temperature is given in Kelvin.

∆G° = {[(-46.11 kJ/mol) + (-92.31 kJ/mol)] - (-314.5 kJ/mol)} - (298 K) {[ (192.5 J/K/mol) + (186.9 J/K/mol)] - (94.6 J/K/mol)}

∆G° = {(-138.42 kJ/mol) + 314.5 kJ/mol} - (298 K) {(379.4 J/K/mol) - (94.6 J/K/mol)}

∆G° = 176.08 kJ/mol - 68.59 kJ/mol

∆G° = 107.49 kJ/mol

Therefore, the value of δG° for the given reaction, at 25°C, using δH°f and ∆S° values is 107.49 kJ/mol.

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The property of both liquids and gases is (c) has randomly arranged particles.

Both liquids and gases are considered fluids, meaning they can flow and take the shape of their container. However, they differ in terms of their particle arrangement and interactions.

Liquids have particles that are relatively close to each other and have moderate interactions. While they are not as tightly packed as solids, they still maintain a definite volume due to the cohesive forces between their particles. Liquids have a random arrangement of particles, allowing them to flow and take the shape of their container, but they do not disperse as widely as gases.

On the other hand, gases have particles that are far apart and have weak interactions. They do not have a definite volume and can expand to fill the entire space available to them. The particles in a gas are highly disordered and move freely, colliding with each other and the container walls. This random arrangement of particles is a distinguishing property of both gases and liquids.

In summary, the property shared by both liquids and gases is that they have randomly arranged particles (c), while having a definite volume (a) is specific to liquids, and large spaces between molecules (d) is specific to gases. Strong interactions between particles (b) is not a property of either liquids or gases.

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Answer:No there needs to be fewer red on the reactant side.

Explanation:

Answer:

oxygen is an example of a diatomic molecule found in earth's atmosphere!

Explanation:

Milk

Explanation:

because milk is very thick youknow here I go