Balance the following equation in acidic solution using the lowest possible integers and give the coefficient of H+. MnO4-(aq) + H2SO3(aq) → Mn2+(aq) + HSO4-(aq). Answer should be 1 show all steps.

Answer:

a) pentane

b) 1,3-dimethyl butane

c) 3,4-diethyl-5-methlyl heptane

d) 1,3,5-triethyl-2,4,6-trimethyl  cyclohexane

Explanation:

The essence of IUPAC nomenclature is to provide a generally accepted nomenclature for chemical compounds which enables the structure of a compound to be drawn from its name without ambiguity.

In order to name straight chain organic compounds, we have to identify the parent chain and then give numbers to the substituents or locants such that they have the lowest possible numbers in alphabetical order.

The correct names of the organic compounds in the question are;

a) pentane

b) 1,3-dimethyl butane

c) 3,4-diethyl-5-methlyl heptane

d) 1,3,5-triethyl-2,4,6-trimethyl cyclohexane

For \(PH_{3}\), Phosphorus atom is the central atom. There are eight valence electrons in the \(PH_{3}\) molecule.

Three Hydrogen atoms and one Phosphorus atom make up a phosphine molecule. The \(PH_{3}\) molecule has eight valence electrons. The central phosphorus atom is creating solitary bonds. It has a Lewis Structure with three Hydrogen atoms and a single pair of electrons. Protons and electrons are both present in an equal proportion in a neutral atom. When electrons are supplied or taken away, ions are created. Most elements are most stable in compounds when they have eight valence electrons in their outer shells. The exception is hydrogen. Its outer shell can only hold two electrons at a time.

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Answer:

4.5 grams

Explanation:

1cm^3 = 1g

Therefore:

4.5cm^3 = 4.5g

Answer:

660J/kg.°C

Explanation:

Using the fact that

∆E of metal + ∆E of water = 0

∆E of the metal = Q = m*c*(T2-T1)

Where

Q = heat lost or gained = ?

m = mass of metal in kg = 0.076kg

c = specific heat of the metal = ?

T1 = 96°C

T2=31°C

∆E of the water=Q= m*c*(T2-T1)

Where

Q = 0.120*4180*6.5 = 3260J

Therefore

3,260J + Q of the metal =0

3,260J + 0.076*C*(31.0–96.0)=0

3,260J - 4.94c = 0

3,260 = 4.94c

3,260/4.94 = c

660J/kg.°C = specific heat of the metal

hope this helps:)

Answer: Benzaldahyde

Explanation: the C₆H₅- represents the substituted benzene ring and the

CHO should represent the functional group of aldehyde

Answer:

The name of the compound is benzaldehyde

The temperature of the sample of CO² gas is 87.41 Kelvin.

Combined gas law put together both Boyle's Law, Charles's Law, and Gay-Lussac's Law. It states that "the ratio of the product of volume and pressure and the absolute temperature of a gas is equal to a constant.

It is expressed as;

P₁V₁/T₁ = P₂V₂/T₂

At STP (standard temperature and pressure), the temperature is 273.15 K and the pressure is 1 atm.

Therefore, we can use the combined gas law to solve for the final temperature:

P₁V₁/T₁ = P₂V₂/T₂

Where P₁ = 1 atm, V₁ = 0.50 L, T₁ = 273.15 K, P₂ = 1.6 atm, V₂ = 0.10 L, and we are solving for T₂.

Substituting the values and solving for T2, we get:

T₂ = (P₂V₂T₁) / (P₁V₁)

T₂ = ( 1.6 atm × 0.10 L × 273.15 K) / (1 atm × 0.50 L)

T₂ = 87.41 K

Therefore, the temperature of the sample is 87.41 K.

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Answer:

Orion Nebula

Explanation:

That is an enormous cloud of gas and dust

Answer:

33.4814814815

Explanation:

90.4/2.70

Answer:

by eating healthy food and having a balanced diet also by exercising

An athlete might be able to increase their cellular respiration through the consumption of a balanced diet along with a regular exercising pattern.

Cellular respiration may be defined as a process through which organisms break down the molecules of glucose within the cell in order to avail energy in form of ATP for metabolic and cellular processes.

As we all know that glucose molecules and oxygen are the reactants for cellular respiration. So, a better level of glucose can be availed by a healthy and balanced diet and a standard oxygen level can be availed through a regular exercising pattern.

Therefore, an athlete might be able to increase their cellular respiration through the consumption of a balanced diet along with a regular exercising pattern.

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The nitrate ion (NO3−) is a polyatomic ion that can accept a proton (H+) to form its conjugate acid. The conjugate acid of NO3− is HNO3, which is nitric acid.

The reaction between NO3− and H+ can be represented by the following chemical equation:

NO3− + H+ → HNO3

In this reaction, the NO3− ion accepts a proton (H+) to form HNO3, which is the conjugate acid of NO3−. Therefore, the correct answer is HNO3.

It is important to note that the conjugate acid-base pair always differ by one proton. So, if NO3- is the base, its conjugate acid will have one more proton than it does. Similarly, if HNO3 is the acid, its conjugate base will have one less proton than it does.

Understanding conjugate acid-base pairs is important in acid-base chemistry, as it allows us to predict the relative strength of acids and bases and their reactions with one another.

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Answer:

1: A salt plus hydrogen gas

2: Yes, the metals which react with cold water are; sodium, calcium and potassium. Magnesium does not react with cold water. Metals like aluminum, iron and zinc do not react either with cold or hot water. Metals such as lead, copper, silver and gold do not react with water at all.

3: There is no reaction between dilute hydrochloric acid or sulfuric acid and the metals below hydrogen in the reactivity series.

4: Yes. The product that forms is called rust.

Answer: The universe consists of all the energy made by the Sun and stars. The universe consists of all physical objects on Earth and in space. The universe consists of all matter and energy. The universe consists of solar systems which contain galaxies.

Explanation:  That's because the Universe does consists of all the energy made by the Sun and Stars. That is how we get our energy is from the Sun and Stars, and the Solar System contains Galaxies.

The electrode connected to the positive terminal of the power source (anode) will attract the sodium ions when the switch is closed, as sodium ions are positively charged and are attracted to the negative electrode.

When the switch is closed, the electrode connected to the positive terminal of the power source (anode) will attract the sodium ions. This is because during electrolysis, positive ions, such as sodium ions (Na+), are attracted to the negative electrode (cathode) due to their opposite charges. The positive terminal of the power source provides an excess of electrons at the cathode, creating a negatively charged environment. As a result, the positively charged sodium ions are drawn towards the cathode and are deposited or reduced there. This process allows for the separation and collection of sodium ions during electrolysis.

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The type of radiation is emitted when polonium-212 forms astatine-212 is alpha radiations.

When any unstable radioactive nuclei will emits any particle in the form of radiation to gain stability then the process is known as radioactive decay.

Polonium-212 is a unstable radioactive substance which will produces a daughter nuclei called astatine-212 through the radioactive decay, in which they emit the alpha particle in the form of radiations.

Hence the type of emitted radiation is alpha.

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Answer:

beta

Explanation:

i took the test this is the answer 100%

The temperature that must be to freeze the solution would be -21.1 ° C.

To calculate the freezing temperature we must take into account the following information.

According to the above, it can be inferred that the puddle has a 50% concentration of salt because they had 12 kg of water and 6 kg of salt.

So the lowest freezing temperature would be 21.1°C because the puddle is 50% concentrated.

Note: This question is incomplete because there is some missing information. Here is the missing information:

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An experiment that could prove all cells come from preexisting cells would involve observing the process of cell division under a microscope.

To prove all cells come from preexisting cells, we can do the following steps. First, obtain a sample of living cells, such as a slice of the onion root tip. Place the sample on a microscope slide and add a stain to make the cells more visible. Next, use a microscope to observe the sample at high magnification. Look for cells that are in the process of dividing, which can be identified by the presence of a structure called the mitotic spindle.
Observe the process of cell division over time, noting how the parent cell divides into two daughter cells. Repeat this process with multiple samples to ensure that the results are consistent.

This experiment demonstrates that all cells come from preexisting cells, as new cells are created through the process of cell division. Without a parent cell, new cells cannot be formed.

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There is the formation of intermolecular hydrogen bonding in ethanol as shown in the model below.

Intermolecular interactions can arise when ethanol, a common alcohol, is liquid. These interactions result from the ethanol molecule's polarity and hydrogen bonding propensity.

Two carbon atoms, five hydrogen atoms, and one oxygen atom make up the compound ethanol (C2H5OH). Because the oxygen atom is more electronegative than the carbon and hydrogen atoms, they are bound together by a polar covalent bond.

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The volume occupied by 0.102 mole of the helium gas is 2.69 L

The following data were obtained from the question:

The volume of the gas can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

Divide both sides by P

V = nRT / P

V = (0.102 × 0.0821 × 305) / 0.95

V = 2.69 L

Thus, the volume of the gas is 2.69 L

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Answer:

The word that best characterizes the Pardoner in this passage is hypocritical.

Explanation:

The Pardoner is against avarice, but as it turns out, he himself commits this sin.

Answer:

PLA is very user friendly that is stronger and stiffer than other materials. It melts easily and doesn't warp very often. Although it is very brittle, it still is a very popular material choice.

Explanation:

The atomic number of nitrogen is 7, for this reason there will be seven electrons present inside the atom. The ground state electronic configuration of Nitrogen atom might be 1s² 2s² 2p³.

All the unpaired electrons have spins aligned in the same direction only.

The electron configuration is the usual notation used to describe the electronic shape of an atom. under the orbital approximation, we permit each electron occupy an orbital, which may be solved through a single wavefunction. In doing so, we attain three quantum numbers (n,l,ml), which are similar to those received from fixing the Schrodinger's equation for Bohr's hydrogen atom. therefore, among the policies that we use to explain the electron's cope with in the hydrogen atom also can be utilized in structures involving more than one electrons. whilst assigning electrons to orbitals, we should observe a fixed of three regulations: the Aufbau principle, the Pauli-Exclusion principle, and Hund's Rule.

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Answer:

La respuesta está en el enunciado

Explanation:

Una solución química es definida como una mezcla de dos o más sustancias donde, la que está en mayor proporción, es definida como el solvente y los componentes que están en menor cantidad se definen como los solutos.

En general, en la formulación de bebidas, el solvente es agua, los solutos son otros componentes como saborizantes y colorantes que permiten que el consumidor tenga experiencias agradables con la bebida.

Además, la solución debe ser homogenea, esto es, todos los solutos se encuentran completamente disueltos en el solvente. Una bebida comercial a la que se le encuentren partículas no genera confianza y puede ser rechazada por parte del consumidos.

The angle that gives the most energy to the electron depends on the initial energy of the photon and the properties of the material the electron is in. However, in general, the angle that gives the most energy transfer to the electron is when the photon scatters off the electron at a small angle, close to 0 degrees.

This is because at small angles, the photon loses very little energy and transfers most of its energy to the electron, resulting in a high-energy transfer.

A high energy photon scatters off an electron and changes its direction by some angle. The angle that gives the most energy to the electron is called the Compton scattering angle, and it occurs at 180 degrees. This is when the photon is scattered directly backward, transferring the maximum amount of energy to the electron.

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Answer:

c Electrons are many thousand times smaller than the nucleus and negatively charged.

Explanation:

trust me slime

Answer:

c

Explanation:

its c

Answer:Nitrogen and hydrogen combine to form ammonia via the following reaction: 1 N2 (s) + 3 H2 (g) → 2 NH3 (g)

Answer:

The constant can be calculated using the ratio of products to reactants when the equation has reached equilibrium. The equilibrium constant is often represented by the variable Keq, which is defined by the equilibrium constant expression

A nonpolar covalent bond shares electrons between atoms that have an equal electron number, while a polar covalent bond consists of atoms with unequal electron number.

A nonpolar covalent bond is a type of chemical bond in which atoms share their electrons and they have an equal number of electrons.

Conversely, a polar covalent bond consists of atoms with unequal electron numbers that form a chemical bond.

In conclusion, a nonpolar covalent bond shares electrons between atoms that have an equal electron number, while a polar covalent bond consists of atoms with unequal electron number.

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The product nucleus in this case is Zirconium-85 (Zr-85), which has a mass number of 85 and 40 protons and 45 neutrons. Zirconium is a chemical element that is commonly used in nuclear reactors due to its ability to absorb neutrons.

In positron decay, an unstable nucleus emits a positron, which is a positively charged electron. This process occurs when the number of protons in the nucleus is greater than the number of neutrons, causing the nucleus to be unstable.
Yttrium-85 (Y-85) has a mass number of 85, meaning it has 39 protons and 46 neutrons. When Y-85 undergoes positron decay, one of its protons turns into a neutron and emits a positron. This results in a new nucleus with one less proton and one more neutron.
In summary, Y-85 undergoing positron decay results in the formation of Zr-85 as the product nucleus. This process is important in nuclear physics and has practical applications in fields such as medicine and energy production.

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Answer:

2Ca + O₂ → 2CaO

Explanation:

Cuando el Calcio (Ca) reacciona con oxígeno (O₂) se produce cal (CaO). La cal es un sólido inodoro de color blanco a grisáceo. La cal es un óxido que se encuentra presente en el cemento y su cuantificación permite determinar la calidad y el tipo de cemento a utilizar.

La reacción que describe el proceso anterior es:

Ca + O₂ → CaO

Para balancear los oxígenos, se deben poner 2 CaO como producto:

Ca + O₂ → 2CaO

Para balancear los calcios, se pone como coeficiente del Ca un 2:

Esta última es la reacción que describe el proceso anterior