Explain wether or not a reaction takes place when when bromine water is added to sodium chloride solution

During a chemical reaction, the quantity of heat can only be added or removed in aim to maintain all of the components involved at almost the same temperature. It can be described by Hess's law.

The total enthalpy change for a reaction is the sum of all changes, according to Hess's Law of Constant Heat Summation. The fact that enthalpy is just a state function is demonstrated by this law.

Hess's law can be expressed as:

Δ\(H_{reaction}\) = ∑nΔ\(H_{product}\) - ∑nΔ\(H_{reactant}\).

where, n indicates stoichiometric coefficients, ΔH indicates enthalpy of reaction( reactant and product)

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Answer: 176.18 kJ/mol

Explanation:

Answer:

688g

Explanation:

This is the correct awnser

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\ \)

From the question

mass = 102 g

volume = 24.5 mL

We have

\(density = \frac{102}{24.5} \\ = 4.163265306...\)

We have the final answer as

Hope this helps you

Free electrons play a role in thermal conduction. Thermal conduction is the transfer of heat energy through a material or between materials in direct contact. In metals, which are good conductors of heat, free electrons contribute significantly to the process of thermal conduction.

In metals, some of the electrons in the outer energy levels of atoms are not tightly bound to individual atoms but are relatively free to move throughout the material. These free electrons are often referred to as conduction electrons. When there is a temperature gradient in a metal, the free electrons gain kinetic energy from the higher-temperature region and transfer it to neighboring atoms by colliding with them. This transfer of kinetic energy is what facilitates the conduction of heat through the material.

On the other hand, thermal expansion refers to the expansion or contraction of a material due to changes in temperature. While free electrons are present in metals, they do not play a direct role in the phenomenon of thermal expansion. Thermal expansion is primarily determined by the behavior of atoms or molecules within the material.

Therefore, free electrons are specifically involved in thermal conduction rather than thermal expansion.

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Answer:

C: Most particles in the plasma are heavy, slow, and very low density.

Explanation:

i'm smart like dat

Answer:

C is correct

Explanation:

If we increase the temperature of the vessel to 450 K at constant volume, then the pressure inside the vessel be 15 atm.

The relationship between temperature and pressure for a fixed volume is described by Gay-law. According to this Law, the pressure of a gas is precisely proportional to its temperature for a fixed volume of the gas. It is written mathematically as P ∝ T, where P is the gas pressure.

T is the gas's temperature (in Kelvin).

P = kT, where k is the proportionality constant, and P / T is equal to k.

In this scenario, the vessel's temperature rises from 300 K to 450 K, its volume doesn't change, and its internal pressure rises.

If the temperature doubles, the pressure will also double.

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Answer:

(1) Nonbonding electron pairs are present on the F in the molecule HF. True

(2) The two atoms involved in a multiple covalent bond must always be atoms of the same element. False

(3) A molecule of hydrogen peroxide contains the same number of atoms as a molecule of sulfur trioxide does. True

Two of the three statements are true.

Explanation:

Non bonding electrons are also known as lone pairs. They are electron pairs present on an atom but are not involved in chemical bonding. They are usually localized on the atom of one of the bonding elements. In HF, there are three nonbonding electrons localized on the fluorine atom that do not participate in chemical bonding.

When multiple bonds are formed between atoms, they must not be atoms of the same element, for instance carbon and nitrogen forms multiple covalent bonds in chemical moieties such as they cyanide ion.

A molecule of hydrogen peroxide (H2O2) contains four atoms just as a molecule of sulphur trioxide(SO3) does.

Answer:

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Unlike rust, which can flake off the surface of iron and steel objects, the layer of aluminium oxide does not flake off.

Explanation:

Answer:

9, 10, 12

Explanation:

anything greater than pH 7 is basic

The number of moles of HCl would take to neutralize the sodium hydroxide produced is equal to 0.0152 moles.

A neutralization reaction can be defined as a chemical reaction in which an acid and base react with each other to prepare salt and water.

When HCl reacts with NaOH and the resulting salt is sodium chloride and water.

HCl    +  NaOH  →    NaCl   +   H₂O

The chemical reaction, chemical reaction of sodium metal and water gives hydrogen gas and sodium hydroxide:

\(2Na +2H_{2} O---- > 2NaOH +H_{2}\)

Given the amount of sodium metal = 0.35 g

The moles of sodium metal = 0.35/23 = 0.0152 moles

If the 2 moles of sodium produce sodium hydroxide = 2 mol

The 0.0152 moles of sodium will produce NaOH = 0.0152

Therefore, 0.0152 moles of HCl is required to neutralize 0.0152 moles of NaOH.

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One example of a lack of orthogonality in the design of C is the use of the "++" and "--" operators.

These operators are used to increment or decrement a variable by one, respectively. However, they can also be used in expressions, leading to confusing and potentially incorrect results. For example, the expression "x = x++" is not orthogonal, as it is not clear whether the increment should happen before or after the assignment. This lack of orthogonality can lead to unintended behavior and bugs in the code.For example, the sizeof operator returns the size of an array in bytes, but it does not return the size of a pointer to an array. This can lead to confusion and errors in code, especially for programmers who are new to the language.

Another example of a lack of orthogonality in C is the fact that function pointers and data pointers are treated differently in some contexts, even though they are both pointers. This can make it more difficult to write generic code that works with both types of pointers.

Overall, these lack of orthogonality issues in C can make it more difficult to write correct and efficient code, and can require programmers to be more careful and aware of the language's quirks and inconsistencies

One example of a lack of orthogonality in the design of C is the use of the same symbol, the asterisk (*), for both multiplication and dereferencing pointers.

Orthogonality is a concept contained in the inner product space which is related to the size of the angle between two vectors. Orthogonality in a product space fulfills the properties including nondegeneracy, symmetry, homogeneity, right additive, resolvability, and continuity.

The use of the same symbol in the form of an asterisk (*) for multiplication and dereference pointers can lead to confusion and ambiguity in the code, as it is not always clear whether the symbol is being used for multiplication or dereferencing. Another example is the use of the same symbol, the ampersand (&), for both bitwise AND operations and referencing pointers. These are two very different operations, and using the same symbol for both can lead to confusion and errors in the code. Overall, the lack of orthogonality in the design of C can make it more difficult for programmers to write clear, concise, and error-free code.

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If the balloon is closed, then yes, both volume and pressure will increase when the gas inside is heated.

What is pressure?

Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Various units are used to express pressure. Some of these are units of force divided by units of area. For example, the SI unit of pressure, Pascal (Pa), is 1 Newton per square meter (N/m2). Similarly, pounds force per square inch (psi, symbol lbf/in2) is the traditional unit of pressure in imperial and US systems. Pressure can also be expressed as standard atmospheric pressure. Atmospheric pressure (atm) is equal to this pressure and torr is defined as 1/760 of this. Manometric units such as centimeters of water, millimeters of mercury, and inches of mercury are used to express pressure as the height of a particular liquid column within a manometer.

If the balloon is closed, then yes, both volume and pressure will increase when the gas inside is heated.

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Answer: by your body

Explanation

Answer:

Since there's only 1 hour before your next dose, you skip the missed ... It happens when bacteria adapt to withstand one or more antibiotics.

Explanation:

the unit cell is 8 atoms per cell. Density = 5.91 g / cm³, z = 8 atoms/cell Thus, There are 8 atoms in each unit cell.

Add up the all atoms in each place to determine the number of atoms inside the unit cell.The fraction contained within the unit cell will then be multiplied.Inside the cell is an atom's /8 portion that occupies a corner. The unit cell contains four percent of an element that is located on an edge.

Four atoms make up each unit cell of the face-centered cubic (fcc), which has a conductivity of 12.Two atoms make up each unit cell of the body-centered cubic (bcc), which has a conductivity of eight.One atom is present in each unit cell of the simple cubic, which has a conductivity of six.

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Answer:

\({ \rm{3Na_{} Cl _{}. 2H _{2} O}}\)

It is 3 molecules of hydrated sodium chloride

The spontaneous reaction for the standard cell made using gold (Au) and gold (III) nitrate, cobalt and cobalt (II) nitrate is:
Au + Co2+ → Au3+ + Co+

The reaction in cell notation form is:

Au | Au3+ || Co2+ | Co+ | Co

Where Au represents the electrode made of gold, Au3+ represents the gold (III) nitrate solution, Co2+ represents the cobalt (II) nitrate solution, Co+ represents the cobalt electrode, and the double line represents the salt bridge.

For the standard cell made using the given components, we first need to determine the half-reactions. They are:

Au³⁺(aq) + 3e⁻ → Au(s) [Reduction]
Co(s) → Co²⁺(aq) + 2e⁻ [Oxidation]

Now we can balance the electrons and write the spontaneous reaction:

2Au³⁺(aq) + 3Co(s) → 2Au(s) + 3Co²⁺(aq)

For the cell notation, we can represent it as follows:

Co(s)|Co²⁺(aq)||Au³⁺(aq)|Au(s)

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Answer:(GMO)

Explanation: genetically modified organism (GMO)

The specific heat of the alloy is approximately 0.520 J/g·°C.

To determine the specific heat of the alloy, we can use the principle of heat transfer, which states that the heat lost by the alloy is equal to the heat gained by the water:

Heat lost by the alloy = Heat gained by the water

The heat lost by the alloy can be calculated using the equation:

Q_alloy = \(m_alloy * c_alloy * ΔT_alloy\)

where Q_alloy is the heat lost by the alloy, m_alloy is the mass of the alloy, c_alloy is the specific heat of the alloy, and ΔT_alloy is the change in temperature of the alloy.

The heat gained by the water can be calculated using the equation:

Q_water =\(m_water * c_water * ΔT_water\)

where Q_water is the heat gained by the water, m_water is the mass of the water, c_water is the specific heat of water, and ΔT_water is the change in temperature of the water.

In this case, the initial temperature of the alloy is 100.0 °C, the final temperature is 30.5 °C, the mass of the alloy is 69 g, the mass of the water is 90.0 g, and the initial temperature of the water is 24.2 °C.

Using the heat transfer principle, we can set up the equation:

m_alloy * c_alloy * ΔT_alloy = m_water * c_water * ΔT_water

(69 g) * c_alloy * (30.5 °C - 100.0 °C) = (90.0 g) * (4.18 J/g·°C) * (30.5 °C - 24.2 °C)

Solving this equation, we can find that c_alloy is approximately 0.520 J/g·°C.

Therefore, the specific heat of the alloy is approximately 0.520 J/g·°C.

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When EROEI (Energy Return on Energy Investment) is equal to 1, it means that the energy gained from a particular source is equivalent to the energy invested in obtaining that energy. In other words, the energy return is equal to the energy input. This indicates a situation where the energy extraction process is barely breaking even, with no net gain or loss in energy.

EROEI is a metric used to assess the efficiency and viability of energy sources. It measures the amount of usable energy obtained from a particular energy source divided by the amount of energy invested to extract or produce that energy. A value of 1 means that the energy gained is just enough to offset the energy invested.

In practical terms, an EROEI of 1 implies that the energy source being evaluated is not very efficient. It suggests that the amount of energy required to extract, process, or produce the energy is nearly equal to the energy obtained. Therefore, there is little to no surplus energy available for other uses or to sustain the energy extraction process itself.

An EROEI of 1 is often associated with energy sources in their early stages of development or exploration, where the technology or extraction methods may not be fully optimized. It could also indicate energy sources with high production costs or low energy density.

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Answer:

9600m

Explanation:

Speed=distance/time

16m/s=distance/10mins

Convert 10mins to seconds

=10×60=600secs

distance=speed×time

distance=16m/s×600s

distance=9600m

Answer:

add a substace devider

Explanation:

i forgot what it was called but there is a chemical that allows the substances to seperste and than you can test the substaces ph and what it is

Answer:

A. 1s²2s²

B. 1s²

C. 1s²

D. 1s²2s²2p⁶

Explanation:

The valency electron is the outer electron of an element. The valency electron resides in the outermost region of the shell.

Using the general configuration for the first 20 elements 2 8 8 2 the valency electrons can be identified.

A. 1s²2s²2p⁶3s² . The valency electron here are 2p⁶ and 3s² . Removing the valency electron we have 1s²2s²

B. 1s² 2s² 2p⁶. After removing the valency electron the configuration will be 1s².

C.1s²2s². After removing the valency electron the configuration will be 1s²

D.1s²2s²2p⁶3s¹. Removing the valency electron the electron configuration will be 1s²2s²2p⁶

Answer:

tangol is Ca Li -56-(99)

Answer: myth .

Explanation: traditional story, especially one concerning the early history of a people or explaining a natural or social phenomenon, and typically involving supernatural beings or events.

"ancient Celtic myths"

usually traditional story of ostensibly historical events that serves to unfold part of the world view of a people or explain a practice, belief, or natural phenomenon creation myths. b : parable, allegory Moral responsibility is the motif of Plato's myths.

Answer:

here

Explanation:

1s22s22p63s23p1.

Answer:

I believe not.

Explanation:

From what I have been told atoms can never come into contact beyond the electron barrier.