which of the following statements are true concerning nuclear fusion reactions? check all that apply. which of the following statements are true concerning nuclear fusion reactions?check all that apply. nuclear fusion is the process during which small nuclei combine to form a larger one. nuclear fusion is the process during which a heavy nucleus splits into two intermediate-sized nuclei after being struck by a neutron. the mass of the products of a nuclear fusion reaction is less than the mass of the original elements. the mass of the products of a nuclear fusion reaction is greater than the mass of the original elements. a fusion reaction proceeds because the binding energy of the resulting nucleus is greater than the binding energy of the original nuclei. a fusion reaction proceeds because the binding energy of the resulting nucleus is less than the binding energy of the original nuclei.

a compound is a pure substance made up of two or more elements chemically combined a molecule is defined as the smallest particle of an element which can exist separately elements are pure substances which can not be split into simple substances by chemical means the atom is defined as the smallest particle of an element which can take part in a chemical change so I think the difference between the molecule of a compound is bigger than the molecule of a compound

Answer:

Ammonia

Explanation:

I believe that ammonia is the correct answer to this question.

The degree of ionization of ammonium hydroxide at the given concentration and temperature is 4.01%.

The degree of ionization, denoted as α (alpha), is a measure of the extent to which a solute dissociates into ions in a solution. It represents the fraction or percentage of solute molecules that dissociate into ions.

For an electrolyte in solution, the degree of ionization indicates the proportion of solute molecules that ionize and contribute to the electrical conductivity of the solution. A higher degree of ionization indicates a stronger electrolyte, while a lower degree of ionization suggests a weaker electrolyte.

The degree of ionization can be calculated by comparing the molar conductance of a solution at a given concentration with its molar conductance at infinite dilution. It provides insights into the behavior of electrolytes in solution and is influenced by factors such as concentration, temperature, and the nature of the solute.

Degree of Ionization (α) = (Molar Conductance at Given Concentration / Molar Conductance at Infinite Dilution) × 100

Given:

Molar conductance of 0.1M NH4OH solution = 9.54 Ω⁻¹cm²mol⁻¹

Molar conductance at infinite dilution = 238 Ω⁻¹cm²mol⁻¹

Degree of Ionization (α) = (9.54Ω⁻¹cm²mol⁻¹/ 238Ω⁻¹cm²mol⁻¹) × 100

Degree of Ionization (α) = 0.0401 × 100

Degree of Ionization (α) ≈ 4.01%

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Answer:

Ions are atoms that have either gain or lose electrons from the neutral atom.

A loss of electrons results in a positive ion, called a cation, a gain of electron results in a negative ion called an anion.

Ionic compounds are formed by the combination of a cation and anion, or metal + nonmetal.

When naming ionic compounds, name the cation first, and the anion second, changing the ending to ide.

Explanation:

Hope it helped!

Answer:

• [ lost ] or [ gained ]

• [ cation ], [ anion ]

• [ metal ] + [ non-metal ]

• [ cation ] and the [ anion ] to [ compound with suffix "ide" or "ode" ]

During the cell cycle, compounds called cyclins increase and decrease in a regular pattern. They regulate the stages of cell division and growth.

Cell cycle development is regulated in element by way of the sequential pastime of various cyclins. The cyclins are regulatory subunits that bind, prompt and provide substrate specificity for their catalytic companion serine-threonine kinases, collectively called cyclin-established kinases.

Cyclins are a family of proteins that don't have any enzymatic interest of their personal however spark off CDKs through binding to them.

S cyclins are involved inside the induction of DNA replication and early stages of mitosis. Their stages upward push at the beginning of S phase and fall in early mitosis.

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Answer and Explanation

There are 2 significant figures.

The silver coating on the spoon is produced. When electrolyzing a spoon made from iron with silver, the anode, cathode, and electrolyte that can be used are as follows:

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The molecular shape of a molecule is determined by the number of bonding and non-bonding electron pairs around the central atom. Without knowing the specific molecule, we cannot provide a direct answer to its molecular shape.

In order to determine the molecular shape of a molecule, we need to know the number of bonding and non-bonding electron pairs around the central atom. This can be done using the VSEPR theory.

The molecule in question is not specified, so we cannot provide a specific answer. However, I can explain the general process of determining molecular shape.

First, we need to draw the Lewis structure of the molecule, which shows the arrangement of atoms and the bonding and non-bonding electron pairs. Then, we count the number of bonding and non-bonding electron pairs around the central atom.

Based on the number of electron pairs, we can determine the molecular shape using the VSEPR theory. For example, if there are two bonding electron pairs and no non-bonding electron pairs, the molecular shape would be linear. If there are three bonding electron pairs and one non-bonding electron pair, the molecular shape would be trigonal pyramidal.

Without knowing the specific molecule, we cannot provide a direct answer to the molecular shape. It would be helpful to provide the specific molecule in order to determine its molecular shape.

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The molecule SF6 has a central sulfur atom (S) bonded to six fluorine atoms (F). To determine its molecular shape, we can use the valence shell electron pair repulsion (VSEPR) theory.

In SF6, the sulfur atom has six valence electrons, and each fluorine atom contributes one valence electron, giving a total of 48 valence electrons (6 electrons from sulfur and 6 electrons from each of the 6 fluorine atoms).

Based on VSEPR theory, the six electron pairs (lone pairs and bonding pairs) around the sulfur atom will arrange themselves to minimize repulsion and achieve maximum stability. Since there are no lone pairs on the sulfur atom in SF6, all six positions around sulfur are occupied by fluorine atoms.

As a result, the molecule SF6 adopts an octahedral molecular geometry. The six fluorine atoms are arranged symmetrically around the central sulfur atom, with the sulfur-fluorine bonds extending along the six edges of an octahedron. This means that the angle between any two adjacent fluorine atoms is 90 degrees, and all fluorine atoms are equidistant from the sulfur atom.

So, to summarize, the molecular shape of SF6 is octahedral, with the sulfur atom at the center and six fluorine atoms surrounding it in a symmetrical arrangement.

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Answer:

True

Explanation:

Answer:

True

Explanation:

Most people stick to what they know and don't look for a laughing place.

Answer:

2, 8, 8

Explanation:

The first electron shell always has 2 electrons when it is complete. The second electron shell and 3rd shell can hold 8 when completed.

The binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond.  Option b

Aminoacyl-tRNA is a complex molecule that plays a crucial role in protein synthesis. It consists of a tRNA molecule covalently linked to an amino acid. The amino acid is attached to the 3' end of the tRNA molecule through an ester bond.

An ester bond is formed between the carboxyl group (-COOH) of the amino acid and the hydroxyl group (-OH) of the ribose sugar at the 3' end of the tRNA molecule. This ester bond is also referred to as an ester linkage. The formation of the ester bond is catalyzed by the enzyme aminoacyl-tRNA synthetase.

The ester bond in aminoacyl-tRNA is essential for protein synthesis. During translation, the aminoacyl-tRNA molecule carries the specific amino acid to the ribosome, where it is incorporated into the growing polypeptide chain. The ester bond is later hydrolyzed, releasing the amino acid for further use in protein synthesis.

In summary, the binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond between the carboxyl group of the amino acid and the hydroxyl group of the ribose sugar in the tRNA molecule.

Option b

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If the atom in Drawing B had been removed by physical separation from one of the substances in Model 1, the substance that could have been the source of the atom in Drawing B is an element.

An atom is the smallest part of a substance that can take part in a chemical reaction. We know that elements are composed of atoms. The atoms of an element are discretely arranged. Thus, in an element, there are so many atoms of the substance.

In the image that has been shown in the question, the source of the atom as it has been show is an element. Thus, if the atom in Drawing B had been removed by physical separation from one of the substances in Model 1, the substance that could have been the source of the atom in Drawing B is an element.

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One molecule of sucrose is burned with oxygen to make carbon dioxide and water.

What is sucrose?

The components of the disaccharide sugar sucrose are glucose and fructose. It is produced naturally by plants and is the main component of white sugar. C12H22O11 is the chemical formula for it.

To extract and refine sucrose for human use, either sugarcane or sugar beet are employed. Crushing the cane creates raw sugar, which is subsequently delivered to other sectors to be refined into pure sucrose. Sugar mills are usually located in tropical regions near to sugarcane plantations.

C12H22O11 + 12O2 = 12CO2 + 11H2O

When one molecule of sucrose is burnt, we get 12 carbon dioxide molecules.

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The pH of milk is approximately 6.6.

The formula for calculating pH is:

pH = -log[H+]

Given that [H+] of milk is about 2.51 × 10–7, we can substitute this value into the formula to calculate the pH:

pH = -log(2.51 × 10–7)

pH = -(-6.6)

pH = 6.6

Therefore, the pH of milk is approximately 6.6.

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Answer:

0.116%

Explanation:

efficiency of sterling engine = 1 - ( 55 + 273 )k / ( 95 + 273 ) k

                                               = 1 - ( 328 / 368 ) = 0.10869

Determine how efficient the transfer of energy via flame is

apply this relation ; energy of steady state / energy output  ---- ( 1 )

where;  energy output = efficiency of sterling engine * energy

                                     = 0.10869 * 50 = 5.4345 J/sec

energy of steady state = 1/2 * I * w^2  ------ ( 2 )

I = moment of inertia of engine = 2 * 10^-5 kgm^2

back to equation 2 :  

energy of steady state = 1/2 * ( 2 * 10^-5 ) * ( 240 * 2π / 60 )^2

                                      = 630.88 * 10^-5  J /sec

Input values into equation 1

= [ (630.88 * 10^-5 )  / 5.4345  ] * 100

= 0.116%

Answer:

infrared energy

Explanation:

Based on electronegativity of atoms, the inductive effect increases as the electronegativity of the atom increases and the electronegative atom is closer to the site of the acidic proton.

The inductive effect occurs due to the difference in electronegativity of atoms bonded together in which electronegative atoms increases the acidity but decreases the basicity of a compound.

The inductive effect is becomes stronger with decreasing distance between atoms, thus it is effective across short distances only.

Therefore, the inductive effect increases as the electronegativity of the atom increases and the electronegative atom is closer to the site of the acidic proton.

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Answer:

Helium

Explanation:

The ionization energy decreases from top to bottom in groups, and increases from left to right across a period.

Answer:

84%

Explanation:

Fossil Fuels Supply 84 Percent Of Worlds Electricity

Two step strategy to determine percent composition from experimental data are to calculate the moles of each element and Calculate the percent composition.

To determine the percent composition from experimental data, we have to follow this two-step strategy:

1. Calculate the moles of each element: Divide the mass of each element obtained from the experimental data by its respective atomic weight (found on the periodic table). This will give you the moles of each element in the sample.

2. Calculate the percent composition: Divide the moles of each element by the total moles of all elements in the sample, then multiply the result by 100 to obtain the percentage. This will give you the percent composition of each element in the compound.

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The speed of particles changes as you change the temperature in the module.

When the temperature is increased, the speed of the particles increases, but when the temperature is decreased, the speed of the particles decreases.

The temperature and the speed of particles are directly related to each other.

When the temperature of a substance is increased by the addition of heat, the speed of the particles will increase as a result of the increase in the kinetic energy of the particles.

However, when the temperature of a substance is decreased by the removal of heat, the speed of the particles will decrease as a result of the decrease in the kinetic energy of the particles.

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the nurse will administer approximately 1 teaspoon (tsp) of the medication.1 teaspoon (tsp) is approximately equal to 5 mL.

To determine the number of teaspoons the nurse should administer, we need to calculate the equivalent volume of 30 mEq of KCL using the provided concentration of 60 mEq/10 mL.

First, we'll find the ratio of milliequivalents (mEq) to milliliters (mL) in the given concentration:

60 mEq / 10 mL = 6 mEq/mL

Next, we can set up a proportion to find the volume (in mL) that corresponds to 30 mEq:

6 mEq/mL = 30 mEq / X mL

To solve for X, we can cross-multiply:

6X = 30 * 1

6X = 30

X = 30 / 6

X = 5 mL

Since the medication cup is marked in teaspoons, we need to convert 5 mL to teaspoons.

1 teaspoon (tsp) is approximately equal to 5 mL.

Therefore, the nurse will administer approximately 1 teaspoon (tsp) of the medication.

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The density (mass per volume) of most liquids increases as the temperature is lowered.

When the temperature is lowered, most liquids become denser (mass per volume). Density decreases as temperature rises more. Density rises with a drop in temperature.

Most liquids expand in volume as the temperature rises, which causes the density of the liquids to decrease. Similar to this, as temperature drops, most liquids lose volume, increasing density.

The molecules of a liquid or gas move more quickly, collide, and spread apart when it is heated. The molecules take up more space because they are dispersed widely. Their density is lower. Whenever a liquid or gas is cooled, the opposite happens.

When a substance is heated, the molecules move faster and slightly farther apart, taking up more space and causing the density to decrease. When something is cooled, the molecules slow down and get a little closer together, taking up less space and becoming denser.

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Answer: Hewo, there! your answer is Below

C. Sweating Would be the correct answer,

Explanation:

it sends signals to your sweat glands to make you sweat and cool you off. When the hypothalamus senses that you're too cold, it sends signals to your muscles that make your shiver and create warmth. This is called maintaining homeostasis.

Hope this helps you!!

Have a great day!!

Answer:

Which of the following body responses help maintain homeostasis by decreasing body temperature is? I want to say Sweating

Explanation:

But read this before answering to make sure. See what you think. This is what I found

Answer:

3. They allow us to take energy from natural processes

Explanation:

There are two major sources of energy namely: renewable and non-renewable. Renewable sources of energy are those natural sources that gets replenished faster than they are utilized, which is contrary to non-renewable sources. Examples of renewable sources of energy are wind energy, solar energy, hydro (water) energy.

According to the question, one advantage or merit that renewable sources have over their counterparts is that they allow us to take energy from natural processes e.g. wind, sunlight etc.

Answer:

Requiere que el agua pase por membranas de filtración.

Explanation:

Un purificador de agua que utiliza energía solar es un dispositivo innovador y tecnológico que funciona como una estación de saneamiento básico con capacidad para purificar el agua y eliminar el 99% de virus y bacterias.

El sistema funciona de la siguiente manera: cuenta con bomba, panel solar, cargador y mangueras. La bomba mueve el agua a través del filtro utilizando la energía de la batería que se carga con la energía de la luz solar. Incluso en días con poca exposición al sol, el sistema es capaz de utilizar la energía acumulada de la batería y purificar 1 litro de agua en 1 minuto.

Se trata de una tecnología simple e innovadora que puede ser de gran ayuda en el saneamiento básico de lugares que no contienen agua potable, debido a la facilidad y portabilidad del sistema.

Answer:  Time = Distance ÷ Speed

To draw the alkenes cis-1,2-dichloroethene, trans-1,2-dichloroethene, and 1,1-dichloroethene, we need to understand the concept of alkenes and their structural formulas.

Alkenes are unsaturated hydrocarbons that contain a carbon-carbon double bond. The general formula for an alkene is CnH2n. In this case, we are dealing with alkenes that contain chlorine atoms.

Let's start by drawing cis-1,2-dichloroethene. In this compound, the two chlorine atoms are on the same side of the double bond. The structural formula can be represented as follows:

```
   Cl
    |
H3C=C(Cl)
```

Now, let's move on to trans-1,2-dichloroethene. In this compound, the two chlorine atoms are on opposite sides of the double bond. The structural formula can be represented as follows:

```
   Cl     Cl
    |     |
H3C=C=CH2
```

Lastly, let's draw 1,1-dichloroethene. In this compound, there is only one carbon atom, and both hydrogen atoms are replaced by chlorine atoms. The structural formula can be represented as follows:

```
   Cl     Cl
    |     |
   C=C
```

In these structural formulas, each line represents a single bond, and each corner and end of a line represents a carbon atom. Hydrogen atoms are not explicitly shown, but we assume that each carbon atom is bonded to the appropriate number of hydrogen atoms to satisfy the valence requirements.

It's important to note that these structural formulas represent a 2D representation of the compounds. In reality, molecules are three-dimensional, and the spatial arrangement of atoms can affect the properties and reactivity of the compound. Additionally, there can be different ways to draw the same compound while maintaining the same connectivity of atoms. However, the structural formulas provided above are the most common representations for these alkenes.

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Answer: IN terms of the collision theory, increasing the concentration of a reactant increases in the number of collisions between the reacting species per second and therefore increases the reaction rate.

Explanation: hope u get it right