Can someone help me with that question

Answer:

The closer the transition state to the product, the more stable it is. It is because this transition state is closest to the final form of the product, which is usually stable

The balanced equation for the formation of 1 mol of liquid methanol (CH₃OH) to produce CO₂ and H₂O is CH₃OH + O2 →  CO₂ + 4 H₂O This means that for every mole of methanol that react, 1 mole of carbon dioxide and 2 moles of water are produced.

To write a balanced equation for the formation of 1 mol of liquid methanol (CH₃OH) to produce CO2 and H2O, follow these steps:

1. Write down the reactants and products: CH₃OH (reactant) → CO₂ (product) + H₂O (product)
2. Balance the equation by adjusting the coefficients of the reactants and products.

The balanced equation for the formation of 1 mol of liquid methanol to produce CO₂ and H₂O is:

CH₃OH (l) → CO₂ (g) + 2 H₂O (l)

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Answer:Plasma is highest energy state of matter.It consists of electrons,protons and neutral particles.

Explanation:(1) Plasma has a very high electrical conductivity .

(2) The motion of electrons and ions in plasma produces it's own electric and magnetic field

(3)It is readily influenced by electric and magnetic fields .

(4)It produces it's on electromagnetic radiations.



Answer:

a: cells

Explanation:

just did it. your welcome have a nice day

answer :- The smallest unit of life that conducts all life function are cell

Answer:

James Clerk Maxwell

Explainlation

In the middle of the 19th century, James Clerk Maxwell put forward the concept of a coherent system where a small number of units of measure were defined as base units, and all other units of measure, called derived units, were defined in terms of the base units. Maxwell proposed three base units: length, mass and time

Molar mass of Na is 23 u

What is molar mass ?

In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance which is the number of moles in that sample, measured in moles.[1] The molar mass is a bulk, not molecular, property of a substance. The molar mass is an average of many instances of the compound, which often vary in mass due to the presence of isotopes. Most commonly, the molar mass is computed from the standard atomic weights and is thus a terrestrial average and a function of the relative abundance of the isotopes of the constituent atoms on Earth. The molar mass is appropriate for converting between the mass of a substance and the amount of a substance for bulk quantities.

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The water molecules must have gained more thermal energy while Anh was away from the house.

An increase in the temperature of a body means that the body has gained more energy in the form of heat, also known as thermal energy.

The thermal energy represents the characteristic of a body responsible for its temperature.

An increase in the temperature of the water molecules increases their kinetic energy and, thus, makes the water molecules move around faster than before.

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Answer:

Some indicators of rusting include:

a. color change

b. formation of as solid

Explanation:

Rusting is a redox ( a reaction in which reduction and oxidation occur concurrently) reaction which occcur when metallic iron is exposed to air and water or water vapor reacts with the oxygen and water to form a hydrated mixture of oxides of the metal.

The shiny metallic iron becomes oxidized to Fe²⁺ and Fe³⁺ ions while neutral oxygen gas molecules are reduced to O²⁻ ions. The shiny metallic iron also loses its lustrous appearance as the process proceeds and is covered by a layer of rust.

The equation for reaction is given below:

4Fe(s) + 30₂(g) + xH₂O(l) -----> 2Fe₂O₃. xH₂O(s)

The product of the reaction above is known as rust and is reddish-brown solid.

Rusting causes iron to become flaky and weak as rust is very light and porous, reducing the strength and appearance of iron which are desirable properties of iron when used in construction. The rusting of iron can lead to damage to automobiles, railings, bridges, and several other iron structures.

Answer:

color change and formation of a solid.

Explanation:

the answer that comes after is chemical also hope this helps!

Answer:

d

Explanation:

Answer:

Answer is D.

in the cracks and pores beneath Earth's surface

Explanation:

hope this helps!

Answer:

a pure substance

Explanation:

i hope i help if i didnt im srry:(

In order to demonstrate that intramolecular forces are stronger than intermolecular forces, a block of ice will be heated in a sealed container until it turns into steam.

Because the forces holding together compounds are stronger than the forces holding together molecules, intramolecular forces are stronger than intermolecular forces.

Intermolecular forces exist between molecules, but intramolecular forces exist between atoms within a molecule. This is the primary distinction between intermolecular and intramolecular forces.

Look for the molecule with the most polarity, the most electronegative atoms, or the most hydrogen bonding groups if the molecules have identical molar weights and similar intermolecular forces. That one will have the overall stronger IMFs.

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Answer:A

Explanation:

I just took the test

Answer:

A, im gonna say. Hopefully this helps!

Explanation:

Length is horizontal, and A is horizontal too.

Answer:

See the answer below

Explanation:

A drop of syrup would spread through water because water molecules interact and dissolve the syrup molecules and the molecules of the syrup randomly diffuse into the water from the region of higher concentration to the region of lower concentration till they become evenly distributed in the water.

Once the molecules become evenly distributed into the water, an equilibrium is established and there is no longer net movement.

For this exercise, the formula for calculating heat is needed

\(Q = m × c_{s} × ∆T \)

In this case, we need to fInd the difference in temperature of the water, so

\(∆T = \frac{Q}{m × c_{s}} = \frac{1420 J}{155 g × 4,184 J/g °C} = 2,2 °C\)

Since water accepts heat from the reaction, its temperature increases therefore the final temperature is

\(T_{f} = T_{0} + ∆T = 19,2 °C + 2,2 °C = 21,4 °C\)

The addition of solid Na2SO4 to an aqueous solution in equilibrium with solid BaSO4 will cause precipitation of more BaSO4. The correct answer is option C.

When Na2SO4 is added to the solution, it dissociates into Na+ and SO4^2-. The presence of additional sulfate ions (SO4^2-) in the solution will shift the equilibrium of the BaSO4 dissolution reaction towards the formation of more solid BaSO4.

The chemical equation for the dissolution of BaSO4 is:

BaSO4(s) ⇌ Ba2+(aq) + SO4^2-(aq)

By Le Chatelier's principle, when additional sulfate ions are introduced to the system (by adding Na2SO4), the equilibrium will shift to the left to counteract the increase in sulfate ions. As a result, more solid BaSO4 will be precipitated from the solution.

The Ksp value of BaSO4 indicates that it is sparingly soluble, meaning only a small amount of BaSO4 can dissolve in water. Therefore, when more solid BaSO4 is precipitated, it indicates a decrease in the concentration of Ba2+ ions in the solution.

In summary, the addition of solid Na2SO4 to the equilibrium system will cause precipitation of more BaSO4, leading to a decrease in the concentration of Ba2+ ions in the solution.

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Answer:

Wind is an emissions-free source of energy

Overall, using wind to produce energy has fewer effects on the environment than many other energy sources. Wind turbines do not release emissions that can pollute the air or water (with rare exceptions), and they do not require water for cooling.

Explanation:

Answer:

[OH⁻] = 3.34x10⁻³M; Percent ionization = 0.54%; pH = 11.52

Explanation:

Kb of the reaction:

NH3 + H2O(l) ⇄ NH4+ + OH-

Is:

Kb = 1.8x10⁻⁵ = [NH₄⁺] [OH⁻] / [NH₃]

As all NH₄⁺ and OH⁻ comes from the same source we can write:

[NH₄⁺] = [OH⁻] = X

And as [NH₃] = 0.619M

1.8x10⁻⁵ = [X] [X] / [0.619M]

1.11x10⁻⁵ = X²

3.34x10⁻³ = X = [NH₄⁺] = [OH⁻]

% ionization:

[NH₄⁺] / [NH₃] * 100 = 3.34x10⁻³M / 0.619M * 100 = 0.54%

pH:

As pOH = -log [OH-]

pOH = 2.48

pH = 14 - pOH

Drawing the major organic product of a reaction requires a thorough understanding of the reaction type, stereochemistry, and functional groups involved. Without more information about the specific reaction, it is impossible to provide a definitive answer.

First, it is important to identify the type of reaction taking place. Organic reactions can be broadly categorized as substitution, elimination, addition, or rearrangement reactions. Each type of reaction has its own characteristic mechanism and product(s).

Second, you should consider the stereochemistry of the reaction. Organic reactions can result in different stereoisomers depending on the orientation of the reactants and the reaction conditions. This can be important for predicting the properties and reactivity of the final product.

Finally, you should consider any functional groups present in the reactants and the possible products. Functional groups are groups of atoms that have characteristic chemical properties and can participate in specific types of reactions. For example, an alcohol (-OH) can undergo an elimination reaction to form an alkene (-CH=CH2), while an alkene can undergo an addition reaction to form an alcohol.

In conclusion, drawing the major organic product of a reaction requires a thorough understanding of the reaction type, stereochemistry, and functional groups involved.

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(a). First, we need to identify the limiting reactant. Let's calculate the number of moles of each reactant:

For salicylic acid, we have that its molar mass is 138.1 g/mol (you can calculate it using the periodic table and doing the algebraic sum):

And now, let's see the number of moles of 17.7 g of acetic anhydride, where its molar mass is 102.1 g/mol:

Now, you can realize that in the reaction 2 moles of salicylic acid react with 1 mol of acetic anhydride. Let's see how many moles of acetic anhydride requires to react with 0.19 moles of salicylic acid:

You can realize that we obtained less number of moles for acetic anhydride, meaning that the acetic anhydride is in excess and the salicylic acid is the limiting reactant, so we're going to work with this compound to find how many grams of aspirin is produced:

In the chemical equation, 2 moles of salicylic acid reacted produces 2 moles of aspirin, so the mole ratio between these two is 1:1 which is telling us that 0.19 moles of salicylic acid are producing 0.19 moles of aspirin. With this value, we can calculate the mass of aspirin as our theoretical yield. The molar mass of aspirin is 180.2 g/mol:

Remember that the theoretical yield is the amount that we expect to get in the reaction, in this case, is 34.24 grams of aspirin.

(b). Let's see the formula for percent yield:

where the actual amount of product is what we obtained from the reaction, in this case, 30.7 grams of aspirin and the theoretical yield that we've already found (34.24 g). Replacing these values, we're going to have:

The percentage yield of the experiment is 89.66%.

The balanced chemical equation for the reaction between aluminum oxide and water to form aluminum hydroxide is:

Al2O3 + 3 H2O → 2 Al(OH)3

We can see that for every 1 mole of Al(OH)3 produced, we need 1/2 mole of Al2O3:

1 mole Al2O3 produces 2 moles Al(OH)3

1/2 mole Al2O3 produces 1 mole Al(OH)3

So, if we need 0.64 moles of Al(OH)3, we can calculate the amount of Al2O3 needed as:

0.64 moles Al(OH)3 x (1/2) moles Al2O3 per 1 mole Al(OH)3 = 0.32 moles Al2O3

Therefore, we need 0.32 moles of aluminum oxide to produce 0.64 moles of aluminum hydroxide, assuming there is plenty of water.

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Answer:

because the number of constitutional confirmation , and geometric isomers goes up with each carbon atom added there are many more possible configurations and connectivities possible with decane , a 10 carbon chain , than with butane, a 4 carbon chain

"The number of possible isomers go up with an increasing number of carbon atoms because as the number of carbon atoms increases the tendency to form branching with other carbon atom increases as well."

What is isomer?

Isomers are molecules or polyatomic ions that have the same molecular formulas that is, the identical number of atoms of each element but different atomic configurations in space. Isomerism refers to the existence or potential of isomers. Isomers don't have to have the same chemical or physical properties.

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Assuming complete combustion, the stated statement indicates that 24 g of methane were consumed.

In the chemical process of burning, an item swiftly combines with oxygen to produce heat. The initial substance and the supply of oxygen are referred to as fuel and oxidizer, respectively. Despite typically being a liquid, fuel for airplane propulsion can also occasionally be a solid, liquid, or gas.

Briefing:

CH4 + 2O₂——————-> CO₂ + 2H₂O

1 mole of methane, or 16 g, will yield =2 x 18 = 36 g of water.

Thus, = 16/36 x 54 = 24 g of methane will be converted into 54 g of water.

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Answer: A new model of the atom that described electrons as being in a cloud

Explanation:

Answer:

A new model of the atom that described electrons as being in a cloud

Explanation:

AP3X

The temperature of the crystal is increased, the vibrations of the atoms will become greater, the atoms will have more energy and will move further from their equilibrium position

Given that the alloy is an 81 wt% Fe−19 wt% V alloy, and all vanadium is in solid solution. At room temperature, the crystal structure for this alloy is BCC.

We have to find the unit cell edge length, a and the effect of increasing the temperature.

To calculate the unit cell edge length for an 81 wt% Fe−19 wt% V alloy, we will use the formula;

For BCC, the number of atoms per unit cell (Z) = 2a^3/Z^3Where Z is the coordination number for a BCC lattice.

For BCC, Z= 8 (number of atoms in a unit cell).We know that the atomic weight of Fe and V is 55.85 g/mol and 50.94 g/mol respectively.

Atomic weight of the given alloy = 81 × 55.85 + 19 × 50.94 = 2967.74Atomic radius of Fe = 0.126 nm

Atomic radius of V = 0.134 nm

Now, Unit cell edge length a = 4/√3 × r

Where r = (rFe + rV) /2 = (0.126 + 0.134) / 2 = 0.130 nm

Hence a = 0.287 nm

At room temperature, the crystal structure for this alloy is BCC.

The effect of increasing temperature on this alloy is that it will expand. The lattice parameter will increase and the unit cell edge length will also increase.

When the temperature of the crystal is increased, the vibrations of the atoms will become greater, the atoms will have more energy and will move further from their equilibrium position. This increased movement will cause the lattice to expand, causing the unit cell edge length to increase.

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Answer:

Physical properties are defined as the properties which can be observed without changing its chemical composition.

For example: color, volume, and molecular weight.

Chemical properties are defined as the properties which can be observed only after changing chemical identity of the substance.

For example: reactivity, toxicity, and flammability.

The fundamental differences between physical and chemical properties are as follows:

Chemical properties are related to chemical bonds of the substance while physical properties are not.

In chemical properties, chemical identity of substance changes while physical properties do not have any change.

Chemical properties predict the reaction of substance while physical properties only describe the appearance of the substance.

Explanation:

Answer:

A measurable property that can be observed typically and explains any matter or organism's appearance and physical behavior is called a physical property. Examples of physical properties are appearance, boiling point, freezing point, melting point, colors, odor, mass, density, solubility. Properties that are only observed during a reaction or change in the composition of a matter is called a chemical property. These properties describe the internal part of anything and explain how it behaves when reacted with other chemical substances. Examples are enthalpy, entropy, reactivity, flammability, oxidation state, acidity, basicity. Some physical properties are reversible or sometimes irreversible. Like the change of states of matter is reversible, and the growth of an organism is irreversible. The same thing with the chemical properties. There are reversible chemical reactions(formation of ammonium chloride) and irreversible chemical reactions. (burning of a chemical substance). After knowing all about these properties, the most fundamental difference is that the physical properties can be measured without any chemical change in them. But a chemical property is measurable when the substance goes through a chemical reaction.

Explanation:

The mole fraction of the sulfur dioxide gas present in a falsk which contains 21.8 g of chlorine gas and 47.8 g of sulfur dioxide gas is 0.708.

Mole fraction of any substance will be calculated by dividing the moles of desired substance by the total moles of the species present in that sample.

Moles can be calculated as:

n = W/M, where

W = given mass

M = molar mass

Moles of 21.8g of chlorine gas = 21.8g / 71g/mol = 0.307mol

Moles of 47.8g of sulphur dioxide gas = 47.8g / 64g/mol = 0.746mol

Mole fraction of sulphur dioxide gas = 0.746 / 0.746+0.307 = 0.708

Hence required mole fraction of sulphur dioxide gas is 0.708.

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Answer: The freezing point depression is \(1.86^0C\)

Explanation:

Depression in freezing point is given by:

\(\Delta T_f=K_f\times m\)

\(\Delta T_f\) = Depression in freezing point

\(K_f\) = freezing point constant = \(1.86^0C/m\)

m= molality = \(\frac{\text {moles of solute}}{\text {mass of solvent in kg}}=\frac{2mol}{2kg}=1m\)

\(\Delta T_f=1.86mol/kg^0C\times 1m\)  

\(\Delta T_f=1.86^0C\)  

Thus freezing point depression is \(1.86^0C\)