-. Explain that particles of matter are in constant motions with
the help of diffusion. Give an example from your daily life. This is a science question by the way it had no science option so I picked chemistry.

Answer:

i- In beaker A, sodium chloride will dissolve with water.

  and in beaker B, there will be no reaction.

ii- sodium chloride is soluble in water, while sand is insoluble.

iii- The reaction can be increased by adding more sodium chloride to the beaker.

iv- The sodium chloride will no longer dissolve in the water.

Answer:0

Explanation: zero because it is the most stable form of oxygen in its standard state

Answer:

what I can't understand what you're saying lol

Explanation:

be my friend lol

btw follow me on my another account (sarivigakarthi)...... plz

Answer:

the concentration of the reactants

the temperature in heating

The variable that should be kept constant is the concentration of the reactant and the temperature in heating.

Hydrochloric acid (HCl) is called as the muriatic acid represent the colorless corrosive, also the mineral acid should be strong that contains various industrial used also it should be reacted with an organic base it created the hydrochloride salt.

Therefore, we can conclude that The variable that should be kept constant is the concentration of the reactant and the temperature in heating.

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Regulated waste refers to any type of waste that poses a potential threat to human health or the environment. These wastes require special handling, treatment, and disposal in order to prevent harm. An example of regulated waste that requires special disposal is medical waste.

Medical waste is generated from healthcare facilities such as hospitals, clinics, and laboratories. This waste includes items such as used syringes, contaminated gloves, and biological specimens. Medical waste must be handled with care to prevent the spread of infectious diseases. It is typically disposed of through incineration, autoclaving, or other specialized methods that ensure the destruction of any harmful pathogens. In general, regulated waste is carefully monitored and tightly controlled to protect public health and safety.

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There are approximately 3.60 × 10^23 molecules of sucrose in 205 g of C12H22O11.

To determine the number of molecules of sucrose (C12H22O11) in 205 g, we need to use the molar mass of sucrose and Avogadro's number.

Given:

Molar mass of sucrose (C12H22O11) = 342.34 g/mol

Mass of sucrose (C12H22O11) = 205 g

First, we calculate the number of moles of sucrose:

Number of moles = Mass / Molar mass

Number of moles = 205 g / 342.34 g/mol

Number of moles = 0.599 moles

Next, we use Avogadro's number to calculate the number of molecules:

Number of molecules = Number of moles × Avogadro's number

Number of molecules = 0.599 moles × 6.022 × 10^23 molecules/mol

Number of molecules = 3.60 × 10^23 molecules

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Not sure how in depth or what level of particles but I will go as deep as I know. The matter that makes up the world is comprised of 12 particles which are known as fermions. There are 12 fermions which are made up of 6 quarks (up, charm, top, Down, Strange, Bottom) 3 electrons (electron, muon, tau) and three neutrinos (e, muon, tau). Technically, only the up quark, down quark, electron, and electron neutrino are necessary to create all known matter since others would simply be very unstable and decay into those particles. The other type of particles are known as Bosons. These particles transmit forces and all sorts of different interactions. I have included a photo from online which describes the main characteristics of each elementary particle.

Answer:

false

Explanation:

in a double reaction, the negative ions switch places. not be replaced.

Answer:

Pentane

Explanation:

Answer: 9. decomposition 10. single displacement 11. synthesis 12. double displacement

Explanation: just know I know

The standard entropy change for the reaction a b ⟶ 2c is -0.5 kJ/K/mol at 298 K.

The standard enthalpy change for the reaction a b ⟶ 2d is -723.0 kJ/mol, and the standard enthalpy change for the reaction 2d ⟶ d is -324.0 J/K/mol. The standard entropy change for the reaction d ⟶ δ is -547.0 J/K/mol, and the standard entropy change for the reaction a + b ⟶ 2c is unknown.

To find the standard enthalpy change for the reaction a b ⟶ 2c, we can use Hess's Law, which states that the total enthalpy change of a reaction is equal to the sum of the enthalpy changes of its individual steps. We can write the overall reaction as:

The enthalpy change for this reaction can be calculated as:

Therefore, the standard enthalpy change for the reaction a b ⟶ 2c is -1764.0 kJ/mol.

To find the standard entropy change for the reaction a b ⟶ 2c, we can use the equation:

At 298 K, we have:

We can rearrange this equation to solve for ΔS°:

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The benefits of synthetics are numerous; they have properties not found in nature, allowing us to make things stronger, lighter, more fuel-efficient, shiner, and longer lasting. At the same time, we contribute to global pollution, have an impact on animal and human health, and require energy to produce.

The majority of synthetic fibers are pliable. Most synthetic fiber fabrics do not wrinkle easily.

Fabrics made of synthetic fibers are typically more durable, less expensive, and more widely available than natural fiber fabrics. The majority of synthetic fibers can withstand heavy loads without breaking.

Thus, The benefits of synthetics are numerous; they have properties not found in nature, allowing us to make things stronger, lighter, more fuel-efficient, shiner, and longer lasting.

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Yes, the sea is considered a buffer.

A buffer is a solution that resists pH changes when acids or bases are added. The buffering capacity of the ocean allows it to maintain a relatively stable pH even when acids and bases are added.

The ocean's buffering capacity is primarily due to the presence of dissolved compounds such as bicarbonate (HCO3-) and carbonate (CO32-). These compounds act as both weak acids and bases, accepting and releasing hydrogen ions (H+) to maintain pH balance. When carbon dioxide (CO2) in the atmosphere dissolves in seawater, carbonic acid (H2CO3) is produced and decomposed into bicarbonate ions and hydrogen ions.

This transformation helps prevent a rapid drop in pH as excess hydrogen ions combine with carbonate ions to form bicarbonate ions, which can reduce overall acidity.

When alkali such as hydroxide ions (OH-) is added to the ocean, excess hydroxide ions combine with hydrogen ions to form water molecules, reducing alkalinity.

The presence of these dissolved compounds and their interconversion reactions stabilize the pH of the ocean, making it less susceptible to rapid changes in acidity or alkalinity. This buffering capacity is essential for the survival and maintenance of marine life, as many organisms are sensitive to changes in pH.

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Answer:

You cannot determine the point of the origin of a single blood drop because it is just a single drop.

When a drop of blood splatters over the ground drag and trail occurs on it which could be useful when there are a lot of it and you can measure the distance from the origin but in case of a single drop it cannot help you because of one main reson which is distance.

You only CAN measure the direction but not the distance of the one single drop.

Let's take a scenario for a example.

A murderer approaches it's target from behind and grope it's target and stabbed him from front.

You will notice that the blood splatter does not occur in a straight direction but it spreads in kind of in a semicircle.

(THIS IS JUST AN EXAMPLE OF A SCENARIO. there are many other cases but this just an example to make the concept clear)

Hope this answer helped

Huckel's rule of aromaticity says  that when there are 4n+2 pi electrons and the n have integer values from 0, then the compound is aromatic. Thus the number of pi electrons 2,6,10, 14, 18 satfies the rule.

Aromaticity is a property of cyclic organic compounds which give  them an extra stability. According to the Huckel's rule of aromaticity, the number of pi electrons must satisfy that 4n+ 2 pi electrons with an integer value of n.

Moreover the compound have to be cyclic and planar and the carbons have to be sp3 hybridization. Now, lets check whether the given numbers satisfy the rule or not.

If pi electrons are 2 in number then (4n +2 )= 2, then n=0. rule satisfied.

If 4n+2 = 4, n = 1/2,not satisfied.

If 4n+2 = 6, n= 1 rule satisfied.

Similarly the number with an increment of 4 will satisfy the rule. Therefore, the number of pi electrons, 2,6,10,14, and 18 satisfy the rule.

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Your question is incomplete. But your complete question is as uploaded in the image.

Answer:

Metallic bonding is the type of chemical bonding that occurs between atoms of metals. In a metallic bond, atoms share their electrons in a way that allows them to form a “sea” of free electrons. This electron sea is responsible for the unique physical and electrical properties of metals.

Explanation:

Answer:

B. allow for bonding metals to be stable.

Explanation:

edge 2022

For a cylinder with a movable piston containing 7.00 moles of helium.  the final amount of moles in the cylinder is  11.110 moles if the volume was changed from 8.00 l to 12.7 l.

To answer this question, we need to use Boyle's Law, Charles' Law, and Avogadro's Law. Boyle's Law states that the volume of a gas is inversely proportional to the pressure, so if the volume increases, the pressure decreases. Charles' Law states that the volume of a gas is directly proportional to the temperature, so if the volume increases, the temperature also increases.

Finally, Avogadro's Law states that the volume of a gas is directly proportional to the number of moles, so if the volume increases, the number of moles also increases.  To calculate the final amount of moles, we can multiply the initial moles by 7.00 by the ratio of the final volume to the initial volume. This gives us a ratio of 12.7/8.00, or 1.5875. Multiplying 7.00 moles by 1.5875 gives us 11.110 moles, which is the final amount of moles in the cylinder.

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Sociology emerged in the early 1800s during a period of great social change when many academics and other educated citizens were fascinated by scientific discoveries social issues like the low high school graduation rate continue to interest sociologists today still important to understand and study society today because it gives students an understanding of the real world around them

Sociology is the of human society and social behavior and it started from 1800s during a period of great social change and studying social sciences gives students an understanding of the real world around them an students learn about places, cultures, and events around the world, what conspired to make them the way they are can make inferences about how the rest of the world works

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Two solids and a liquid combined in a chemical change. The mass of the final mixture is lower than the mass of the starting ingredients. The missing mass of mixture might contain products which may be gases which might have escaped from the system.

According to the law of conservation of mass, mass can neither created nor be destroyed. It means in an isolated system mass cannot be created or destroyed or transformed from one form to the other. Therefore, the total mass of reactants should be equal to the total mass of the products in a chemical reaction.

It is also possible that one or more of the products of the reaction is or are gases which escaped from the system leading to a decrease in mass of products, or some of the mass of the reactant, maybe the water, evaporates into the surroundings, where the reaction was taking place.

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The value of the equilibrium constant for the reverse reaction is 5 × 10⁻⁶.

The equilibrium constant is the value of the reaction quotient at equilibrium.

Given that at a certain temperature, the value of the equilibrium constant, K, for the reaction represented above is 2.0 × 10⁵.

We require the equilibrium constant for the reverse reaction at the same temperature.

Let K' be the equilibrium constant for the reverse reaction.

So, we have that K' = 1/K

Substituting the value of K into the equation, we have

K' = 1/K

K' = 1/(2.0 × 10⁵)

K' = 1/2.0 × 1/10⁵

K' = 0.5 × 10⁻⁵

K' = 5 × 10⁻⁶.

So, the value of the equilibrium constant for the reverse reaction is 5 × 10⁻⁶.

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Answers-in-bold:

There are two common temperature scales. On the Fahrenheit scale, water freezes at 32 degrees. The Celsius scale divides the interval between the freezing and boiling points of water into 100 degrees.

The simplest straight-chain alkynes containing seven to twelve carbons are:

1. Heptyne (7 carbons)

2. Octyne (8 carbons)

3. Nonyne (9 carbons)

4. Decyne (10 carbons)

5. Undecyne (11 carbons)

6. Dodecyne (12 carbons)

Here are the structures and names of the simplest straight-chain alkynes containing seven to twelve carbons:

1. Heptyne:

  Structure: H-C≡C-C≡C-C≡C-C≡C-H

  Name: 1-Heptyne

2. Octyne:

  Structure: H-C≡C-C≡C-C≡C-C≡C-C≡C-H

  Name: 1-Octyne

3. Nonyne:

  Structure: H-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-H

  Name: 1-Nonyne

4. Decyne:

  Structure: H-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-H

  Name: 1-Decyne

5. Undecyne:

  Structure: H-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-H

  Name: 1-Undecyne

6. Dodecyne:

  Structure: H-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-C≡C-H

  Name: 1-Dodecyne

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Two samples of gold must have the same density as they have the same kind of atoms.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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Answer:

Universe, galaxy, solar system, star, planet, moon and asteroid.

Explanation:

You're welcome!

Answer:

the eye socket

Explanation:

the area around the eye is called the eye socket or the eye orbit.

This problem is stating a situation in which a solid object is fully immersed in a liquid and the buoyant force is larger that its weight, so that you need to discuss whether this is possible or not.

In general terms, it is necessary to keep in mind that when the buoyant force is larger than its weight, the object will float. On the other side, when the buoyant force is smaller than the weight, then the object will sink.

It means that it could be possible to have this scenario under specific conditions. Now, the Archimedes' principle can be applied with the following version:

\(F_B+W>m_{obj}*a\\\\\rho _{fluid}*V*g+m_{obj}*g>m_{obj}*a\\\\\rho _{fluid}*V-m_{obj}>m_{obj}*a\)

It means that the object can move down the liquid if has a significant acceleration (could be external), even when the buoyant force is larger than the weight

Learn more:

Answer:

The atomic number is written on top of the element symbol.

Explanation:

From top to bottom:

-Atomic Number

-Element Symbol

-Name

-Atomic Mass

~