What weighs more a neutron or electron.

Answer:Group, in chemistry, a column in the periodic table of the chemical elements. In a group, the chemical elements have atoms with identical valence electron counts and identical valence vacancy counts. ... Groups are numbered from 1 to 18.

Explanation:Hope this helped u may i also get brainlist plz only if u wanna give me brainlist though have an great day!

Answer:

A group is a coulm with elements that share the same number of electons

Explanation:

Answer:

920mL of water

Explanation:

To solve this question we need to find as first the mass that must be added of water to make 1000mL of syrup using specific gravity. Thus, we can know the volume of water that mus be added:

1.31 is 1.31g/mL. In 1000mL = 1310g/1000mL. As the mass added of sucrose is 850g, the mass of water = Volume of water is:

1310g - 850g = 460g of water = 460mL to make 1L, To make 2L the amount of water that must be added is:

460mL * 2  =

The number of milliliters of water are used to prepare two liters of syrup is 920 mL of water.

Given that,

Based on the above information, the calculation is as follows:

1.31 is = 1.31g/mL.

Now

In 1000mL = \(1310g \div 1000mL\).

Now if the mass is added so the mass of water should be equivalent to the volume of the water.

= 1310g - 850g

= 460g of water

Now

= 460mL for 1L,

To make 2L the water should be  

= 460mL (2)

= 920mL of water

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A "diene" could include one or more heteroatoms which replace unsaturated carbon atoms. Compounds that contain more than two double bonds are called polyenes.

In a long-chain polyene, the electrons are delocalized, meaning they are not confined to specific atoms but can move freely along the chain.

This delocalization can be reasonably approximated using the particle in a one-dimensional box model. In this model, the length L of the box represents the end-to-end distance of the polymer.

Polyunsaturated alkenes, or polyenes, are compounds that have several carbon-carbon double bonds.

The double bonds can be spaced out along the carbon chain, with several carbon-carbon single bonds separating them.

According to the Gold Book definition, a "diene" could include one or more heteroatoms which replace unsaturated carbon atoms, giving structures that could more specifically be called hetero dienes.

Compounds that contain more than two double bonds are called polyenes.

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The particle in a one-dimensional box model describes the quantized energy levels and corresponding wavefunctions of delocalized electrons in long-chain polyenes. The energy levels are determined by the length of the box (L), and they are given by the equation \(E_n = (n^2 * h^2)/(8mL^2)\), where n is the quantum number, h is Planck's constant, and m is the mass of the electron. Understanding these energy levels and wavefunctions helps us analyze the electronic properties and behavior of long-chain polyenes using quantum mechanics principles.

In a long-chain polyene, the delocalized electrons can be described using the particle in a one-dimensional box model. This model approximates the behavior of electrons as if they were confined to a one-dimensional space, similar to a particle in a box. The length of the box, denoted as L, represents the end-to-end distance of the polymer.
In this model, the energy levels of the electrons are quantized, meaning they can only have certain discrete energy values. These energy levels are determined by the size of the box (L). The longer the box, the greater the number of energy levels available.
The energy levels of the electrons in the box can be represented by a series of quantum states. Each state corresponds to a specific energy value and wavefunction. The wavefunctions describe the probability distribution of finding the electron in different regions of the box.
By solving the Schrödinger equation for a particle in a one-dimensional box, we can determine the allowed energy levels and corresponding wavefunctions. The energy levels are given by the equation:
\(E_n = (n^2 * h^2)/(8mL^2)\)
where \(E_n\) is the energy of the nth level, n is the quantum number (1, 2, 3, ...), h is Planck's constant, m is the mass of the electron, and L is the length of the box.
By understanding the energy levels and wavefunctions, we can gain insights into the electronic properties of long-chain polyenes and their behavior in terms of quantum mechanics.

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Answer: 1.289 g/ml

Explanation:

density= m/v

m=10.8405

v=8.41

10.8405/8.41

d= 1.289 g/mL

The option c. copper ions lose electrons to become neutral atoms is correct.

Electrolytic refining of copper is a process in which impure copper is electro-refined in an electrolytic cell to produce high-purity copper. The impure copper is the anode in the electrolytic cell and high-purity copper is the cathode. The impure copper is dissolved in a solution of copper sulfate, and an electric current is passed through the solution. The process involves passing an electric current through a solution of copper sulfate, in which impure copper is the anode and high-purity copper is the cathode. Copper ions migrate from the anode to the cathode, where they gain electrons to become neutral copper atoms. The process results in the removal of impurities, such as gold, silver, platinum and other metals, which are left behind in the anode.

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Answer:

planet, star, solar system, galaxy, universe

plz mark me as brainliest.

Answer:

210 microliters of drug are needed to fill the capsule

Explanation:

As given in the question

1 liter is equal to \(10^6\) micro liters

Volume of Capsule \(= 210\) cubic millimeter

1 cubic millimeter  \(= 10^{-3}\) cubic meter

1 cubic meter \(= 10^3\) liters

1 micro liter \(= 10^{-6}\) micro liters

Converting \(210\) cubic millimeter to micro liter

\(= 210 * (10^{-3})^3 * 10^3 \\= 210 * 10^{-6}\\= 210\)micro liters

The value of ecell at 25°c if [\(h_2so_4\)] is 10.0 m will be  1.765 V.

To calculate the cell potential (Ecell) of a redox reaction, we need to know the standard electrode potential (E°) of each half-reaction and the concentrations of the reactants and products.

Given that the concentration of \(H_2SO_4\) is 10.0 M, we can assume that the reaction is:

\(H_2SO_4\)(aq) → 2H+(aq) + \(SO_{42}\)-(aq)

The standard electrode potentials for the reduction of H+ to H2 and for the oxidation of \(SO_{42}\)- to \(S^2O_{48}\)- are:

H+(aq) + e- → 1/2 H2(g) E° = 0.00 V

2H2O(l) → O2(g) + 4H+(aq) + 4e- E° = 1.23 V

\(SO_{42}\)-(aq) → 2e- + \(S^2O_{48}\)-(aq) E° = 2.01 V

The overall reaction can be obtained by adding the half-reactions:

\(H_2SO_4\)(aq) + 2e- → \(S^2O_{48}\)-(aq) + 2H+(aq)

The cell potential can be calculated using the Nernst equation:

Ecell = E° - (RT/nF) ln Q

where:

E° is the standard cell potential

R is the gas constant (8.314 J/mol·K)

T is the temperature in Kelvin (25°C = 298.15 K)

n is the number of electrons transferred (2 in this case)

F is the Faraday constant (96,485 C/mol)

Q is the reaction quotient, which can be calculated as:

\(Q = [H+]^2 [S^2O_82-] / [S^2O_{48}]\)

At 25°C, the value of RT/F is 0.0257 V.

Substituting the values:

Ecell = 2.01 V - (0.0257 V/2) ln [(10.0 M)^2/1]

Ecell = 2.01 V - 0.0129 ln (100)

Ecell = 1.765 V

Therefore, the cell potential (Ecell) at 25°C is 1.765 V.

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Answer:

A

Explanation:

The elephant has more mass, so more inertia, and it takes more forece to change the elephant motion.

Answer:

Yes

Explanation:

Higher concentrations of reactants = More collisions between molecules = More possible reactions between the molecules = Higher reaction rate

A solution is made up of two components, solute and solvent. In chemistry, we define the concentration of solution as the amount of solute dissolved in the solution.

Increasing the concentration of reactants generally increases the rate of reaction because more of the reacting molecules or ions are present to form the reaction products. This is especially true when concentrations are low and few molecules or ions are reacting.

Hence, Higher concentrations of reactants = More collisions between molecules = More possible reactions between the molecules = Higher reaction rate.

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Answer:

stands for the element hydrogen, and the O stands for the element oxygen. So, H2O means two atoms of hydrogen mixed with one atom of oxygen. All pure water is the same, two parts hydrogen to one part oxygen. ... Water cannot be separated by any physical means.

Explanation:

Water which is a compound, also known as H₂O, cannot be separated into hydrogen and oxygen by any physical means.

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

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The concentration is tested by titration with potassium permanganate, and each sample is tested twice Replication- 10/20/30 hours.

Hydrogen peroxide is a chemical compound that is gaseous in nature.

Since it is unstable it slowly decomposes in the presence of light to form water and oxygen. The control experiment is necessary for the determination of reliability and statistical significance of results obtained.

Testing the concentration of the species after exposure to air for 10,20 and 30 hours is randomization. Replication refers to the number of times the same experiment is carried out. It enhances the reliability of the result of an experiment.

Testing each sample twice is replication.

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Answer:

Hurricanes can be broken down into four quadrants and while all sides are dangerous, the most destructive is the right front quadrant. This is due to the forward motion contributing to the rotation of the storm. This side of the storm tends to have higher winds, higher storm surge, seas, and the highest rainfall.

When a sample of 89.56 g  NH4NO3 dissolves in 42.05 g of water, the temperature changes from 28.69 c to 7.8 c, the heat flow (q) in this case is approximately -11,165 Joules.

To calculate the heat flow (q) in this case, we can use the equation:

q = m × C × ΔT

where:

q is the heat flow

m is the mass of the solution (water + NH4NO3)

C is the specific heat capacity of the solution

ΔT is the change in temperature of the solution

First, we need to find the mass of the solution by adding the mass of the water and the mass of NH4NO3:

Mass of solution = Mass of water + Mass of NH4NO3

= 42.05 g + 89.56 g

= 131.61 g

Next, we calculate the change in temperature:

ΔT = Final temperature - Initial temperature

= 7.8°C - 28.69°C

= -20.89°C

Now, we need to determine the specific heat capacity of the solution. Since the specific heat capacity of water is commonly used, we can assume it is approximately 4.18 J/g·°C.

Plugging the values into the equation, we can calculate the heat flow (q):

q = 131.61 g × 4.18 J/g·°C × (-20.89°C)

≈ -11,165 J

Therefore, the heat flow (q) in this case is approximately -11,165 Joules.

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Considering the definition of ideal gas law, the volume of the Krypton gas is 3840 mL.

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P×V = n×R×T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

Now, taking into account this law, and isolating the pressure variable (P), you get:

\(V=\frac{nxRxT}{P}\)

In this case, you know:

Replacing in the ideal gas law:

\(V=\frac{0.119 molesx0.082 \frac{atmL}{moleK}x298K}{0.756579 atm}\)

Solving:

V=3.84 L= 3840 mL (being 1 L=1000 mL)

Finally, the volume of the Krypton gas is 3840 mL.

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Answer: can be considered to be both an acid and a base

Explanation:

Answer:

gravity

Explanation:

force downward due to gravity

Answer:

Gravity is the answer.

1.00 pint of milk is equal to 473.18 milliliters, based on the conversion factor of 1 pint = 473.18 milliliters.

To convert pints to milliliters, we can use the conversion factor of 1 pint = 473.18 milliliters.

Since we have 1.00 pints of milk, we can multiply it by the conversion factor to find the volume in milliliters:

1.00 pint * 473.18 milliliters/pint = 473.18 milliliters.

Therefore, 1.00 pint of milk is equivalent to 473.18 milliliters. It's important to note that this conversion factor is based on the standard definition of a pint, which is equal to 473.18 milliliters. In some countries, the pint may have a different value, so it's essential to use the appropriate conversion factor based on the specific context or region.

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Answer:

Hope.

Gravity, weak force, electromagnetism, strong force are the four fundamental forces of nature.

The one that is not governing the natural universe is hope. The correct option is C.

The universe and all of its naturally occurring phenomena, as well as all of the physical laws that govern them.

The universe is almost entirely made up of dark energy, dark matter, and ordinary matter.

Other contents include electromagnetic radiation which is estimated to account for 0.005% to close to 0.01% of the universe's total mass-energy and antimatter.

Gravitational force, weak nuclear force, electromagnetic force, and strong nuclear force are the four fundamental forces of nature.

The strong nuclear force, also known as the strong nuclear interaction, is the most powerful of nature's four fundamental forces.

Gravitational force, the weakest of the four forces, has a relative strength of 10 to the minus 40.

Thus, the correct option is C.

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Answer:

Ions combine into only one ratio

Explanation:

Just took test

Prefixes are not used to indicate the number of atoms when writing the chemical formula. The number of atoms are written as subscripts to their chemical symbols.

Chemical formula of a compound is used to identify a compound and distinguishes it from other compounds. A chemical formula is written from the chemical symbols of elements which constitute the compound.

The number of atoms of each element is written as the subscripts of the symbols for each atoms. For example,magnesium chloride contains one magnesium and two chlorine atoms thus, its formula is MgCl₂.

The subscripts for each atom in the formula of an ionic compound is the charge of the other  atom into which it is bonded. Similarly, the formula of iron oxide containing 2 Fe and 3 O is written as Fe₂O₃.

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To determine the chloride ion (Cl-) concentration in milligrams per liter (mg/L) of ground water, we need to calculate the moles of chloride ions and then convert it to the desired concentration units.

Given:

Volume of ground water sample = 100 mL = 0.1 L

Mass of precipitate (AgCl) = 60.0 mg

The molar mass of AgCl is calculated as follows:

Ag: 1 atom x 107.87 g/mol = 107.87 g/mol

Cl: 1 atom x 35.45 g/mol = 35.45 g/mol

Total molar mass of AgCl: 107.87 g/mol + 35.45 g/mol = 143.32 g/mol

Now, let's calculate the moles of chloride ions (Cl-):

moles of AgCl = mass of AgCl / molar mass of AgCl

             = 60.0 mg / 143.32 g/mol

             = 0.4183 mmol

Since AgCl precipitates when all the chloride ions react with AgNO3, the moles of chloride ions are equivalent to the moles of AgCl formed.

To convert the moles of chloride ions to milligrams per liter (mg/L):

Chloride ion concentration = (moles of Cl- / volume of water sample) x 1000

                         = (0.4183 mmol / 0.1 L) x 1000

                         = 4183 mg/L

Therefore, the chloride ion concentration in milligrams per liter (mg/L) of the ground water sample is approximately 4183 mg/L.

By adding an excess of AgNO3 solution to precipitate all the chloride ions as AgCl and measuring the mass of the resulting precipitate, we can determine the chloride ion concentration in milligrams per liter (mg/L) of the ground water sample. In this case, the chloride ion concentration is found to be approximately 4183 mg/L.

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Answer:

As a skydiver falls, he accelerates downwards, gaining speed with each second. The increase in speed is accompanied by an increase in air resistance (as observed in the animation below). This force of air resistance counters the force of gravity. As the skydiver falls faster and faster, the amount of air resistance increases more and more until it approaches the magnitude of the force of gravity. Once the force of air resistance is as large as the force of gravity, a balance of forces is attained and the skydiver no longer accelerates. The skydiver is said to have reached a terminal velocity.

A temperature of -80.2°C, 13.09 g of argon occupies a volume of 9.82 L at a pressure of 1.47 atm.

To solve this problem, we can use the ideal gas law, which relates the pressure, volume, and temperature of a gas to the number of moles of gas present:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

We can rearrange this equation to solve for the temperature:

T = PV/nR

First, we need to calculate the number of moles of argon present:

n = m/M

where m is the mass of argon and M is the molar mass of argon. The molar mass of argon is approximately 39.95 g/mol.

n = 13.09 g / 39.95 g/mol = 0.3272 mol

Next, we can substitute the given values into the ideal gas law and solve for the temperature:

T = (1.47 atm) x (9.82 L) / (0.3272 mol x 0.08206 L•atm/mol•K)

T = 193 K

Finally, we can convert the temperature from Kelvin to Celsius:

T(°C) = T(K) - 273.15

T(°C) = -80.2°C

Therefore, at a temperature of -80.2°C, 13.09 g of argon occupies a volume of 9.82 L at a pressure of 1.47 atm.

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1. LiCl (Lithium chloride) CsBr (Cesium bromide) NaCl (Sodium chloride).

3. Group 1 elements, also known as alkali metals, form 1+ ions because they have one valence electron in their outermost energy level.

4. The formula of the sulfide ion is S2-.

5. The ions in NaCl stay together due to electrostatic attraction between the oppositely charged ions.

6. The formula of potassium sulfide is K2S. In this compound, potassium (K+) forms a 1+ ion, and sulfide (S2-) forms a 2- ion.

1. The three ionic compounds from the given list are:

LiCl (Lithium chloride)

CsBr (Cesium bromide)

NaCl (Sodium chloride)

Dot-and-cross diagrams for the three ionic compounds:

2. LiCl:

Li (Lithium) has 1 valence electron while Cl (Chlorine) has 7 valence electrons. The electron from Li is transferred to Cl, resulting in the formation of Li+ and Cl- ions. The dot-and-cross diagram would show Li with no dots and Cl with 8 dots around it.

CsBr:

Cs (Cesium) has 1 valence electron while Br (Bromine) has 7 valence electrons. Similar to LiCl, the electron from Cs is transferred to Br, resulting in Cs+ and Br- ions. The dot-and-cross diagram would show Cs with no dots and Br with 8 dots around it.

3. NaCl:

Na (Sodium) has 1 valence electron while Cl (Chlorine) has 7 valence electrons. Again, the electron from Na is transferred to Cl, forming Na+ and Cl- ions. The dot-and-cross diagram would show Na with no dots and Cl with 8 dots around it.

4. Group 1 elements, also known as alkali metals, form 1+ ions because they have one valence electron in their outermost energy level. These elements have a strong tendency to lose this valence electron to achieve a stable electron configuration similar to the noble gas configuration.

The formula of the sulfide ion is S2-.

5. The ions in NaCl stay together due to electrostatic attraction between the oppositely charged ions. In NaCl, the sodium (Na+) ion has a positive charge, and the chlorine (Cl-) ion has a negative charge. These opposite charges attract each other, forming an ionic bond.

The strong electrostatic attraction between Na+ and Cl- keeps the ions together in a crystal lattice structure.

6. The formula of potassium sulfide is K2S. In this compound, potassium (K+) forms a 1+ ion, and sulfide (S2-) forms a 2- ion. To balance the charges, two potassium ions are required for every sulfide ion.

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A 780 gram element decays at a rate of 18% every minute. 780 elements are still missing (1-0.171) 19 .

Element:

A basic object that is difficult to divide into smaller bits is described as an element. An element is a chemical that cannot be broken down by non-nuclear processes in physics or chemistry. A discrete component of a bigger structure or collection is referred to as an element in computers and mathematics.

The most basic form of a material is an element. In general, it cannot be streamlined or broken down into smaller parts. A constituent of an element is an atoms. A specific element only has one kind of atom per atom. Charged particles, neutrons, and electrons, which are particles, make up the remainder of an atom.

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There are 50% chances of the offspring being heterozygous for tall plant.

Crossing homozygous short tt plants with heterozygous tall Tt plants yields short to tall plants in a 1:1 ratio. So the seed has a 50% chance of growing into a large plant.

Under such conditions, the dominant allele is always expressed and the recessive allele is masked. In this example, the size allele is dominant, so the plant grows.

About 80% of an individual's height is determined by differences in their inherited DNA sequences.

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When you turn the transmitter so that charges move in a east-west direction, the polarization of the resulting electromagnetic waves will change.

Polarization is the orientation of the electric field vector of an electromagnetic wave. In electromagnetic wave generated by north-south current in a wire, electric field vector will be oriented in an east-west direction. If the current in the wire is moving in east-west direction, the electric field vector of resulting electromagnetic wave will be oriented in a north-south direction.

So, if you change the direction of electric charges in the wire,  polarization of the resulting electromagnetic waves will change.

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