what other element would react violently with chlorine to produce a compound with similar properties?

Answer:

it's because the liquid in the bottle is supercooled

The Energy levels that has the highest amount of energy is Fourth; option D

Energy levels or electron shells are fixed distances from the nucleus of an atom of an element where electrons are most probably to be found.

The energy levels are arranged in increasing energy levels from the nucleus of the atom.

The energy levels are given integer values of n, where n = 1, 2, 3, 4, 5,..

This means that the lowest energy level is the first one closest to the nucleus also known as ground state.

Therefore, the energy level which has the highest amount of energy from the given options is the fourth energy level.

In conclusion, electrons in atoms are arranged in energy levels starting from the first energy level closest to the nucleus.

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The molality of a solution prepared by dissolving 84.7 g of kmno4 in 165 g of water is 3.25m

Molality is a measure of number of the moles of solute in a solution corresponding to 1 kg or 1000 g of solvent. This contrasts with definition of the molarity which is based on a specified volume of solution.

The term molality is formed in analogy to the molarity which is molar concentration of a solution. The earliest known use of intensive property molality and of its adjectival unit, now-deprecated molal, appears to have been published by G. N. Lewis and M. Randall in the 1923 publication of Thermodynamics and Free Energies of Chemical Substances. Though two terms are subject to being confused with the one another, the molality and molarity of a dilute aqueous solution are nearly same, as one kilogram of water (solvent) occupies volume of 1 liter at room temperature and a small amount of solute has little effect on the volume.

Therefore,

molality = moles of solute / kg solvent, "m"

             =0.535mol/0.165kg

             =3.25m

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The hottest part of the Bunsen flame, which is found just above the tip of the primary flame.

The main flame that gas welders employ is the neutral flame. There are two areas of a neutral flame: a hotter, lighter inner area and a cooler, darker outer area. A neutral flame produces a clean flame since the entire fuel gas is consumed during the operation.

The Bunsen flame's hotter region, immediately above the primary flame's tip, has a temperature of roughly 1,500 °C (2,700 °F). If there is insufficient air, the gas combination won't burn entirely and instead instead produce small carbon particles that, when heated to burning, give off light to create a brilliant flame.

Within the flame when burning hydrocarbon fuel, two processes are happening. The transformation of hydrogen and carbon into carbon monoxide and water is the first primary reaction. Carbon monoxide to carbon dioxide conversion is the secondary reaction; both are exothermic processes.

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She will use 10 L of the 20% solution.

A mixture is a substance made up of two or more dissimilar chemical compounds that are not chemically linked in chemistry. When two or more substances are physically combined, their identities are maintained, and the mixture takes the shape of solutions, suspensions, or colloids.

Let

x = amount of 8% solution

y = amount of 20% solution

The chemist wants to end up with a 12-L mixture, so

x + y = 12

0.8x L of salt is present in an 8% solution, while 0.2y L is present in a 20% solution. When blended, the mixture should have an 18% salt concentration, or 18% of 12 L = 2.16 L of salt, so

0.08x + 0.2y = 2.16

Solve for y :

x = 12 - y

0.08 (12 - y) + 0.2y = 2.16

0.96 - 0.08y + 0.2y = 2.16

0.12y = 1.2

y = 10

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The energy required to ionize a muonic hydrogen atom compare to that required to ionize a regular hydrogen atom:

Muonic hydrogen is an exotic hydrogen atom, where a muon (instead of an electron) orbits proton. Because muon is 200 times heavier than the electron, the muon's orbit is 200 times closer to the proton in muonic hydrogen than that of the electron in regular hydrogen.

The extremely precise extraction of proton radius obtained by Pohl et al. from measured energy difference between the 2P and 2S states of muonic hydrogen disagrees significantly with that extracted from electronic hydrogen or elastic–proton scattering. This discrepancy is proton radius puzzle.

In muonic hydrogen electron is replaced by muon, μ which is 200 times heavier than electron

ΔE= En - Ei

for hydrogen like atom,

ΔE= 13.6(Z square /n square) - (-13.6Z square/1 square)

For, Z=1 and n=x (for ionization)

I.E.=13.6eV for electron

I.E.∝ mass (as binding energy proportional to mass)

I.E.=13.6eV*200

    =2720eV

    =2.720keV

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A solution made from 35 ml of ethanol and 75 ml of water has volume percentage of ethanol is 35%.

Solution, in chemistry, homogenous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility. The term solution is commonly applied to liquid state of matter, but solutions of gases and solids are possible. Air, for example, is a solution consisting chiefly of oxygen and the nitrogen with trace amounts of several other gases, and brass is a solution composed of copper and zinc.

Life processes depend in the large part on solutions. Oxygen from lungs goes into solution in the blood plasma, unites chemically with the hemoglobin in the red blood cells, and is released to the body tissues. The products of digestion also are carried in solution to different parts of the body. The ability of liquids to dissolve the other fluids or solids has many practical applications. Chemists take advantage of the differences in solubility to separate and purify materials and to carry out chemical analysis. Most chemical reactions occur in the solution and are influenced by the solubilities of the reagents. Materials for chemical manufacturing equipment are selected to resist solvent action of their contents.

Percentage of ethanol = 35/100=35%

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Isotopes are atoms with the same number of protons, but differ in numbers of neutrons.

Isotopes are elements of the same family that have the same number of protons but different numbers of neutrons. Isotopes comprise of two or more than two types of atom that have the same atomic number but different mass number due to different number of neutrons in each element.

Isotopes are the members of elements which contains the same number of protons but they have different number of neutrons.

Isotope Of Hydrogen:

There are three isotopes of hydrogen i.e. protium 11H, deuterium 21H and tritium 31H. All these isotopes have one same number of proton which is 1 but different number of neutron.

The isotopes are different because of the different number of neutrons present in them.

So we can conclude that isotopes are atoms with the same number of protons, but differ in numbers of neutrons.

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Answer:

A stable nucleus has a similar number of protons and neutrons.

Explanation:

Carbon emissions includes the carbon dioxide and carbon monoxide in the atmosphere, produced by business processes and systems.

What does carbon emission mean?

Carbon dioxide emissions or CO2 emissions are emissions stemming by the burning of fossil fuels and the manufacture of cement; they contain carbon dioxide produced during consumption of solid, liquid, and gas fuels also as gas flaring.

A drive to figure , a flip of a light-weight switch and a flight out of town all rely on the combustion of fossil fuels like oil, coal and gas. When fossil fuels burn, they emit greenhouse gases like CO2 that contribute to heating . Ninety-eight percent of atmospheric CO2 comes from the combustion of fossil fuels.

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Answer:

answer is a . because they have enough heat is given off during exothermic reaction

Answer: answer is a . because they have enough heat is given off during exothermic reaction

Explanation:

One possible drawback to moist-heat cookery is that color, flavor, vitamins and minerals may leach out and be lost in the liquid.

What is cooking with moist heat?

Liquid or steam is used in moist heat cooking to deliver heat to the food. Poaching, steaming, and braising are three common methods. Each os the moist heat cooking method uses heat in the form of liquid or vapor to slowly cook food and loosen connective tissue.

Numerous nutrients, including vitamins and minerals, are lost when food is cooked using moist heat because these nutrients stay in the liquid that they were originally cooked in. Taste is lost when food is boiled since it also stays in the liquid.

Question:

One possible drawback to moist-heat cookery is that _______ may leach out and be lost in the liquid.

a.color

b.flavor

c.vitamins

d.minerals

e.all the above

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Answer:

114.818 amu.x(112.9041) + (1 - x)

(114.9039) = 114.818Solving for xx=0.043 or 4.3%

Explanation:

The average atomic mass written in the periodic table is determined from the relative abundances of the element's isotopes. The equation would be:Average Atomic Mass = ∑(Relative Abundance×Mass)Let be the relative abundance of Indium-113. Because there are only 2 isotopes, their relative abundances should equal to 1, such that the relative abundance for Indium-15 is (1-x). The atomic mass of indium is 114.818 amu.x(112.9041) + (1 - x)(114.9039) = 114.818Solving for x,x = 0.043 or 4.3%

The density of an element with a lattice perimeter of 0.45 nm and an atomic weight of 96.4 g/mol is 7.05 g/cm^3.

Based on the position of atoms in a solid, they are divided into many categories like simple cubic, face-centered cubic(fcc), body-centered cubic(bcc), etc.

In face centered cubic type of solid, the atoms are present at the corners and face center,  the effective number of atoms(Z) is 4.

The formula for the density of a solid is

Density = M x Z/ NA x a^3

Here M is the atomic weight of the metal= 96.4 g/mol

Z is the  number of atoms = 4

NA is the Avogadro number = 6.022 x 10^23

a is the lattice perimeter = 0.45 nm

Putting the given values in the equation,

Density = 7.05 g/cm^3.

Hence, the density of an element with a lattice perimeter of 0.45 nm and an atomic weight of 96.4 g/mol is 7.05 g/cm^3.

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Using henderson-hasselbach equation, the mass of sodium acetate(dry) is 0.2g and volumes of glacial acetic acid and dH₂O needed to prepare 50 mL of 0.2 M acetate buffer of pH 4.5 are  9.125 mL and 15. 875 mL

The Henderson-Hasselbach equation is :

             pH = pKₐ + log [A ⁻]

                                       [HA]

We have a pH 4.5 solution of acetic acid and sodium acetate. pKₐ of acetic acid is 4.75. Taking ratio of weak acid to conjugate base:

    4.5 = 4.75 + log [sodium acetate]

                                   [acetic acid]

 [Sodium acetate]   = 0.5623

    [acetic acid]

Now, number of moles of each component to be calculated.                                    

If total concentration is- 0.10 M, then:

            [HA] + 0.5754[HA] = 0       .10 M

            [HA] =           0.10            

                        1.0000 + 0.5754

             [A⁻] = 0.0365 M    

Total volume given is - 50 mL(50 mL= 0.050 L), so the moles of each component :

            nₐ₋ = 0.0365 mol   x 0.050 L = 0.001825 mol

                              L

            nhₐ =  0.0635 mol x 0.050 L = 0.003175 mol

                              L

Let the starting concentration were 0.20M, then we can find volume they both start with:

            Vₐ₋ =         1L           x 0.001825 mols A⁻ = 0.009125 L

                       0.20 mols A⁻

                   = 9.125 mL

            Vhₐ =          1L           x 0.003175 mols HA = 0.015875 L

                       0.20 mols HA

                   = 15.875 mL

To calculate mass of sodium acetate , using the equation:

pKₐ = -log Kₐ = -log 1.8 x 10⁻⁵ = 4.74 (kₐ of acetic acid is 1.8 x 10⁻⁵)

4.5 = 4.74 + log [acetate] / [acetic acid]

log[acetate] / [acetic acid] = -0.24

[acetate] / [acetic acid] = 0.182

x/0.2=0.182

x = [acetate] = 0.0364 M

0.0364 mol/L x 0.050 L x 136.08 g/mol = 0.247 g

Since the molarity is given to only one significant figure, answer can be reported as 0.2 g

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Answer:

d. all of these

Explanation:

i had this same question so hope this helps

Multivitamin supplements contain minerals such as calcium, iron, gold, copper, and zinc. The statement is false.

A multivitamin is a dietary supplement that contains vitamins, dietary minerals, and other nutritional components. These medications can be purchased as tablets, capsules, pastilles, powders, liquids, or injectable formulations.

According to Wong, the main function of a multivitamin is to close nutritional gaps and ensure that people get their recommended daily intake of minerals including calcium, magnesium, dietary fibre, potassium, choline, and underconsumed vitamins A, C, D, E, and K.

Therefore, multivitamin supplements contain minerals such as calcium, iron, gold, copper, and zinc. The statement is false.

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Does a reaction occur when aqueous solutions of potassium carbonate and nickel(II) chloride are combined yes no If a reaction does occur.

The inorganic substance K2CO3 is known as potassium carbonate. It is a soluble in water white salt. It is ethereal and frequently takes the form of a moist or damp solid. To make soap and glass, potassium carbonate is mostly employed.

The main component of potash, as well as the more refined pearl ash or tartar salts, is potassium carbonate. In the past, potash was baked to eliminate impurities and produced as pearl ash. It was the pearl ash that was left behind, a fine, white powder. Samuel Hopkins received the first patent ever granted by the United States Patent Office in 1790 for a better way to make potash and pearl ash.

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A person consumes 2,000 cc of water each day. They should generally lose 2,000 ml of water each day.

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One jar appears be much sweeter than other

In the two jar marked with the same carbon hydrogen and oxygen content could taste so different because carbohydrates contain just carbon, hydrogen and oxygen atoms that's why in the one jar it appear much sweeter taste than other and in the carbohydrates all are connected in the particular way carbohydrates are classified into three subtypes: monosaccharides, disaccharides, and polysaccharides That's why in two jar marked with the same carbon hydrogen and oxygen content could taste different.

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The compound that would be formed if lithium and oxygen were placed together is Li₂O (lithium oxide), which is option B.

A chemical reaction is a process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.

When a metal and nonmetal reacts, the charge of the metal becomes the subscript of the nonmetal and vice versa.

According to this question, lithium metal reacts with oxygen nonmetal. Lithium is an element with a charge of +1 while oxygen has a charge of -1.

This suggests that the compound that will be formed if lithium and oxygen were placed together is Li₂O (lithium oxide).

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The element with electronic configuration xs² xp⁴ will gain 2 additional electrons resulting in the formation of an anion (negative ion), giving the element a charge of -2.

A charged atom is termed an ion and it is formed when an atom loses or gains electrons that are present in its outermost valence shell.

When an atom loses electrons, it turns into an anion and acquires a negative charge, whereas when it gains electrons, it turns into a cation and acquires a positive charge.

We now have an unknown element with the electronic setup xs² xp⁴. The electrical configuration shows that the element has four valence electrons in its outermost shell and requires two more electrons to complete its octet. As a result, the element will gain two more electrons, resulting in the formation of an anion (negative ion) with a charge of -2.

Note: Since losing four electrons is not possible, the element will gain electrons much more easily.

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At ph 7.0, converting an aspartic acid to beta-carboxyl aspartate, will have Charge will remain same.

An -amino acid used in the biosynthesis of proteins is aspartic acid (symbol Asp or D; the ionic form is called aspartate) (also known as aspartic acid or aspartate). It includes an amino group and a carboxylic acid, just like every other amino acid does. The protonated form of the -NH+ contains its -amino group.

While its '-carboxylic acid group is deprotonated to 'COO' under physiological conditions, it forms 3 in the absence of those conditions. Aspartic acid has an acidic side chain (CH2COOH) that interacts with other amino acids, enzymes, and proteins in the body. Under physiological conditions (pH 7.4), the side chain typically appears in proteins as the negatively charged aspartate form, or COO. Aspartic acid is a non-essential amino acid in humans, meaning the body can synthesize it as needed. By the codons GAU, it is encoded.

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The similarities and differences between roller coaster rides and NASA plane training sims.

The forces are not sustained, as James Sebastian indicated, although being of approximately equal magnitude. This is what makes all the difference. The most physically taxing component of my high-performance aircraft flying is holding a turn at 6-8re or a G suit, you can quickly experience GLOC (G Induced LossG for anywhere between 10 and 20 seconds. Without the "hick" maneuver of Consciousness), which feels like your brain is being drained of blood. Consider that you will likely weigh as much as a small family automobile during those 20 seconds as well. We typically feel fatigued after a roller coaster flight since it is challenging and exhausting to move our limbs.

PS: Flying has destroyed skydiving and roller coasters.

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crystals are made using supersaturated solutions of solids in water. these solutions hold more of the solute than they would at room temperature.

An appropriate solution might be that the water might want to be heated to a better temperature, which might provide molecules and ions extra  kinetic energy, growing solubility.

What are supersaturated solutions?

A solution that has extra solute dissolved in it in comparison to a saturated solution is referred to as a supersaturated solution. It may be organized with the aid of using including extra solute to an solution this is already saturated with the technique of heating in order that the solute may be effortlessly dissolved. These solutions are in a non-equilibrium state.

Supersaturated solutions maintain extra of the solute at better temperatures than they might at room temperature. Hence, an appropriate solution might be that the water might want to be heated to a better temperature, which might provide molecules and ions extra  kinetic energy, growing solubility.

Generally, solubility will increase with boom in temperature. At better temperature, the kinetic energy of molecules in answer boom. Consequently, extra of the molecules/ions of solutes collide extra with every different and dissolve. At decrease temperature, the molecules of the solutes crystalize out in answer.

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Fats or oils are created when the hydroxide group of glycerol combines in a dehydration synthesis process with the carboxyl group of fatty acids.

The building blocks of fat in our bodies and the food we eat are called fatty acids. During digestion, the body transforms lipids into fatty acids so they may be absorbed into the bloodstream. A molecule known as a triglyceride is created when three fatty acid molecules are linked together.

Saturated, monounsaturated, and polyunsaturated fatty acids are all present in dietary fats. Even while meals include all three forms of fatty acids, they are frequently grouped according to the prevalent type.

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The types of energy are correctly matched below:

Thermal energy: Coal-fire power plant

Electrical energy: power plant

Sound energy: Radio

Chemical/potential energy:Coal

Energy conversion is also known as energy transformation whereby a type of energy changes to another form of energy.

There are various types of energy which includes:

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The concentration of making 87.3 ml of salicylic acid solution with 0.45 mg is 3.73x10⁻⁵ M

To solve this problem, the formulas and the procedures that we have to use are:

Where:

Information about the problem:

Converting the volume units from (ml) to (L) we have:

v(solution) = 87.3 mL * (1 L/1000 ml)

v(solution) = 0.0873 L

Converting the mass units from (mg) to (g) we have:

m =  0.45 mg * (1 g/1000 mg)

m = 0.00045 g

Having the MW we calculate the moles of salicylic acid:

n(salicylic acid) = m(salicylic acid) / MW(salicylic acid)

n(salicylic acid) = 0.00045 g / 138.12 g/mol

n(salicylic acid) = 3.258x10⁻⁶ mol

Applying the molarity formula, we get:

M = n(solute)/v(solution) L

M = 3.258x10⁻⁶ mol / 0.0873 L

M = 3.73x10⁻⁵ M

In chemistry a solution is known as a homogeneous mixture of two or more components called:

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Then  there is an increase in Entropy.

A state of disorder, unpredictability, or uncertainty are frequently related with the scientific concept of entropy, which is also a quantifiable physical characteristic. The notion and the phrase are employed in a variety of disciplines, including classical thermodynamics, where they were initially identified, statistical physics, which describes nature at the molecular level, and information theory. It has wide-ranging uses in physics and chemistry, biological systems and how they relate to life, cosmology, economics, sociology, weather science, and information systems, particularly the transfer of information through telecommunication.

The amount of different configurations that the atoms in a system can take depends on its entropy. Entropy can be thought of as a gauge of uncertainty or unpredictability.

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Tendency of the substance to travel long distances between the site of origin and target area is not a specific criterion for classify a substance as a neurotransmitter.

Neurotransmitters are the chemical messengers that are responsible for transporting chemical “messages” from one neuron to the subsequent target cell. The target cell may be a gland, muscle, or another nerve cell. Neurotransmitters are generally classified on the basis of their inhibitory or excitatory action.

Neurotransmitters plays major roles in controlling body functions like senses, breathing, heart beat, hormone regulation and blood pressure.

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Cryosphere and hydrosphere would interact.

There are five main Earth's spheres: the geosphere, the hydrosphere, the cryosphere, the biosphere and the atmosphere.

The hydrosphere is all the liquid water masses on the Earth.

The cryosphere is all the frozen water masses on the Earth.

In a high temperatures ice will turn into the liquid water and interact with each other.

The spheres interact with one other. For example, plants (biosphere) produce oxygen (atmosphere) from carbon dioxide (atmosphere).

Substances in different spheres are recycled and turned into other phases and forms. This is important cycle and without that, there is no life on Earth.

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Answer: Cryosphere and Hydrosphere

Explanation:

Cryosphere and hydrosphere would interact.

Cryosphere is the frozen water part of Earth.                                                    Hydrosphere is all the water on Earth's surface