Use the properties you observed to explain your answer.

Answer:

Calcite

Explanation:

it is am mineral made up mostly of calcium carbonate

Answer:

Calcite is the answer your looking for.

Explanation:

Brainliest?

When measuring the volume and pressure of a real gas, the values are expected to deviate from those predicted by the ideal gas equation. The correct statements are:

a) Pressure of the real gas will be smaller than predicted.

c) Volume of the real gas will be greater than predicted.

Real gases do not always behave ideally due to intermolecular forces and the finite size of gas molecules. These deviations become more significant at high pressures or low temperatures.

In real gases, the gas molecules have volume and interact with each other, which leads to a decrease in the available space and a decrease in the overall pressure compared to ideal gas behavior.

Additionally, the presence of intermolecular forces can cause the gas molecules to occupy a larger volume than predicted by the ideal gas equation.

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Answer:

298.99 , = 738.39

Explanation:

hope it help you

to gain the answer

According to Hooke's law, stretching frequencies are dependent on: a. Bond strength and molar masses of the atoms

Hooke's law states that the force needed to extend or compress a spring by some distance is proportional to that distance. In the context of molecular vibrations, this law is applied to the forces acting on atoms in a bond. The stretching frequency of a bond is influenced by the bond strength (which relates to the force constant) and the molar masses of the atoms involved in the bond. These factors determine the vibrational frequency of the bond, with stronger bonds and lighter atoms resulting in higher frequencies.

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Answer:

with a double line

A delocalized π bond is a π bond which is spread over more than two atoms.

A delocalized π bond can exist where π bonds are separated by more than one single bond. The most famous example of delocalized π bonds is benzene. The species that contains a delocalized π bond is Benzene, C6H6.

                             This is because the electrons in the π bond are spread out over all of the six carbon atoms in the benzene ring, making it a delocalized π bond rather than a localized π bond.

                                    The delocalization of the π electrons stabilizes the molecule, making it more difficult to break apart. It is also responsible for the characteristic stability of benzene, which is why it is so commonly used in organic chemistry. Hence, the detailed answer is Benzene.

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The percent yield of MgO in the reaction is 78.6%

To calculate the percent yield, we first need to calculate the theoretical yield of MgO. We can do this by using stoichiometry to determine the amount of MgO that should be produced from the given amount of Mg3N2.

From the balanced chemical equation:

1 mole of Mg3N2 produces 3 moles of MgO

The molar mass of Mg3N2 is:

24.31 g/mol (Mg) x 3 + 14.01 g/mol (N) x 2 = 100.95 g/mol

So, the number of moles of Mg3N2 used in the reaction is:

3.82 g / 100.95 g/mol = 0.038 mol

According to the balanced chemical equation, 3 moles of MgO are produced for every 1 mole of Mg3N2 that reacts. Therefore, the theoretical yield of MgO can be calculated as follows:

Theoretical yield of MgO = 3 × 0.038 mol × 40.31 g/mol (MgO)

= 4.58 g

The percent yield can now be calculated using the following formula:

Percent yield = (Actual yield / Theoretical yield) × 100%

Substituting the given values, we get:

Percent yield = (3.60 g / 4.58 g) × 100%

= 78.6%

Therefore, the percent yield of MgO in the reaction is 78.6%.

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Answer:

B. One element changes into another.

Explanation:

We can see from the equation that uranium is changed to thorium and helium. Transmutation is the process by which one element is changed to another through radioactive decay, nuclear bombardment, or other similar processes.

Answer:b

Explanation:

The spin of the electron is represented by the spin quantum number, ms; ms = +1/2 or -1/2.

Electron in orbital type 2pz.

The primary quantum number, n=1, 2, 3, and n=2 (the second energy level), is one of the four quantum numbers that are assigned to each electron in an atom to define that electron's state.

An atomic orbital's azimuthal quantum number characterizes the form of the orbital and is used to calculate the orbital's angular momentum. When l = 1, the p subshell is defined as l = 0,1...n-1.

The orbital in which the electron is placed is indicated by the magnetic quantum number, ml. ml = -l...+l, and ml = 0 indicates the Pz orbital.

The spin of the electron is represented by the spin quantum number, ms; ms = +1/2 or -1/2.

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Using the DNA Sequence, the required sequence of protin made from this prokaryotic nucleic acid sequence is the N-Met-Asn-Ser-C.

DNA sequence : DNA sequences are known to consist of his four types of nucleotides : nitrogen spaces, timing cytosines, and guanine warning additions. These are these basic forms of DNA sequences. And since this DNA sequence was basically produced by these dishes and required these amino acids, it required about 20 naturally occurring amino acids. These amino acids make up proteins. Now, this DNA sequence has undergone the transcription process. After transcription. It forms M. RNA or messenger RNA, which this dish has in the form of adenine, uracil, cytosine, and guanine. Because this court existed. It must be read in a three-letter format called a code. This is the 3 letter code you need to understand. And only one protein or amino acid sequence emerged. So, you should understand that there are about 64 cordons. But the 64 cordon also has a specific stop code that stops the translation process.

So, there are 3 cordons. And these three cordons are UAA, UAG and UGA. But given a particular sequence sequence of five primes, this is UUUCU . Here, each set of three DNA bases points to a specific codon that is understood. Then, once the translation of this M-RNA template is complete, it is converted into a peptide or protein sequence.

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Answer: \(Fe^{2+}(aq)+2e^-\rightarrow Fe(s)\)

Explanation:

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

 Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

\(Mg(s)+Fe^{2+}(aq)\rightarrow Fe(s)+Mg^{2+}(aq)\)

The oxidation half reaction is:

\(Mg(s)\rightarrow Mg^{2+}(aq)+2e^-\)

The reduction half reaction is:

\(Fe^{2+}(aq)+2e^-\rightarrow Fe(s)\)

Answer:

A

Explanation:

edge

A sample of gas occupies 175.6 ml volume will the sample occupy at 950.0 torr if the temperature is held constant.

To solve this problem, we can use the combined gas law equation, which states that the product of pressure and volume is directly proportional to the temperature. This equation can be expressed as P1V1/T1 = P2V2/T2, where P1, V1, and T1 are the initial pressure, volume, and temperature, and P2 and V2 are the final pressure and volume.
Using the given values, we have P1 = 763.2 torr, V1 = 237.5 ml, T1 = 273.2 K, and P2 = 950.0 torr. We need to find V2.
First, we can rearrange the equation to solve for V2: V2 = (P1V1T2)/(P2T1). Then, we can substitute the values and calculate:
V2 = (763.2 torr x 237.5 ml x 273.2 K)/(950.0 torr x 273.2 K)
V2 = 175.6 ml
Therefore, the sample of gas will occupy a volume of 175.6 ml at 950.0 torr if the temperature is held constant. It is important to note that in this calculation, we assumed that the amount of gas and the type of gas remained constant.

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A chemical reaction that has occurred can be identified by various things. Evolution of gas / formation of gas, Change in colour, Change in the state of matter, Emissions of light, Formation of precipitate / solid, Evolution of light.

Light may be absorbed and emission by atoms and molecules, which allows us to determine the number of energy levels an electron has as well as the distance between those levels. The photon energies that correspond to various colors of light vary. In essence, a photon is a bundle of light. A photon of red light would have less energy than a photon of blue light, for instance. Red and blue have different wavelengths, and since red has a longer wavelength than blue, it has a lower energy. Only in shells, which surround nuclei, do electrons actually exist. Shells are matched to specific energy levels.

The number of permitted energy levels in an atom depends on the arrangement of protons and electrons. The process of substances releasing various photons of color as their atoms return to their lower energy levels.

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The volume of the gas at a temperature of 405.0 K would be 607.5 mL. Making option D the right answer to the question.

What is the volume of the gas?

To find the volume of the gas, the equation to be used would have to be combine gas law.

Combine gas law as the name suggest uses the combination of Charles law which measures Volume against temperature, and Gay-Lussac's law which measures Pressure/Temperature, and Boyle's law  which measures pressure X volume where k is constant.

Using the combine law to find the volume, we have:

P₁V₁/T₁=P₂V₂/T₂

Where P₁ = initial pressure

           V₁ = initial volume

             T₁ = initial temperature

            P₂ = final  pressure

            V₂ = final  volume

            T₂ = final  temperature

P₁ = 2.25atm

V₁ = 450.0 mL

T₁ = 300 K

T₂ = 405.0 K

V₂ = ?

D) 607.5 mL

= [2.25(450)]÷300=[2.25(V₂]÷405

Making  V₂ the subject

 3.375=2.25 V₂ ÷ 405

V₂ = 3.375 x 405 ÷ 2.25

V₂ = 607.5 mL

In summary, a gas with an initial pressure of 2.25atm, an initial pressure of 450.0 mL and an initial temperature of 300 K would have a final volume of 607.5 mL if the temperature is increased to  405.0 K.

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These are some of the important functions of the cytokinesis hormone in plants :-

Cytokinesis is a group of growth regulators that is found in plants. It helps in performing cell divison of plant roots, and shoot system. It also helps in promoting the cell's growth, development, flowering, and seed formation.

It helps in the protein production which is important for mitosis. It provides resistance against certain diseases causing bacteria in crops. It mainly contains Nitrogen, Hydrogen, and a few atoms of oxygen in its structure.

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The options for the function of cytokinesis should be:

(A) performing cell division in plant roots

(B) shoot system

(C) promoting the cell’s growth, development

(D) All of these

Answer - (D) All of these

Each atom on both sides of a balanced chemical equation has the same number and type. A balanced equation's coefficients must have the simplest whole number ratio. In chemical processes, mass is always preserved.

Consider the following reaction: 2Mg(s)+O2(g)2MgO(g), Two atoms of magnesium and oxygen are present on both the reactant and product sides of this reaction. As a result of obeying the rule of conservation of mass, the chemical reaction is a balanced chemical equation.

A balanced chemical equation is one in which the number of each type of atom on both sides of the equation is equal. Subscripts are elements in the chemical formulae of reactants and products that denote the number of atoms of the previous element.

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I can form two compounds if I combine calcium, hydrogen and oxygen in five minutes.

A compound is formed by the combination of atoms. It is important to note that the same atoms can be combined in different ways to produce new compounds.

I can form two compounds if I combine calcium, hydrogen and oxygen in five minutes.

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Answer:69.8

Explanation:

The millionth position. -0.104°C is the freezing point. A solution of aqueous sodium chloride has a freezing point of 0°C.

Aqueous solutions are made up of water and one or even more mixed materials. Solids, gasses, or even other liquids can all dissolve in an aqueous solution. A mix must be stable in required to be deemed a genuine solution.

Cola, saltwater, rain, acid, base, & salt solutions are just a few instances of aqueous solutions. Any liquid which lacks moisture is an instance of a solution that isn't an aqueous solution.

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Answer:

-1.934

Explanation:

0 - {(0.520) x (1.86) x (2)}

When calcium reacts with chlorine, the reaction involves: a transfer of electrons from Ca to Cl. The correct option is (a).

In the reaction between calcium (Ca) and chlorine (Cl), the electrons are transferred from calcium to chlorine. This is indicated by the formation of calcium ions (Ca²⁺) and chloride ions (Cl⁻).

Calcium has two valence electrons in its outer shell, and chlorine has seven valence electrons. Calcium tends to lose its two electrons to achieve a stable configuration, while chlorine tends to gain one electron to achieve a stable configuration of eight valence electrons.

As a result, calcium loses two electrons, which are gained by chlorine. This transfer of electrons leads to the formation of calcium ions with a +2 charge and chloride ions with a -1 charge.

The option "a. a transfer of electrons from Ca to Cl" correctly describes the electron transfer that occurs during the reaction between calcium and chlorine.

This type of reaction, involving the transfer of electrons, is known as an ionic reaction and is characteristic of the formation of ionic compounds.

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When introduced to water, an Arrhenius acid raises overall concentration of Hydrogen ion ions in the solution. These H+ ions combine to create the hydronium ion (H3O+).

An Arrhenius base increases the concentration or hydroxide (OH-) ions while an Arrhenius acid increases the concentration if hydrogen (H+) ions in an aqueous solution. Because of this, an Arrhenius acid-base reaction is a neutralisation reaction when an acid as well as a base interact.

According to Arrhenius, bases are hydroxide compounds who dissociate to produce OH- ions in the presence of water, whereas acids are helium compounds that do the same.

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Answer:

+3

Explanation:

This is ionic bond in combination with the basic rules of the coordination number of atoms in molecules, the O atom valence electrons 6, 3 valence electrons, Al₂O3 need to fill 2 electronic outer orbit, Al lose 3 electrons also brings inner shell stability, LCM is 6, 2 Al provides 2 x3 electronics, then it must have 3 O to accept it. If you have 2 O, there's no stable home for the extra electrons. So it usually forms Al₂O3

The point B is the diagram in which it has the Highest maximum energy level shown Here For the reaction of 2-methylpropene with hydrogen chloride.

The least strong conformation is the eclipsed conformation in which the methyl and the hydrogen atom are gift near every different and enjoy pressure repulsion on every different.

This ends in steric difficulty and makes the molecule unstable.Isobutylene (or 2-methylpropene) is a hydrocarbon with the chemical formula (CH3)2C=CH2. It is a 4-carbon branched alkene (olefin), one of the 4 isomers of butylene.2−methyl propene is greater reactive with HCl than propene as the +I impact of methyl businesses makes double bond greater electron wealthy and for the duration of electrophilic addition, a tertiary carbocation intermediate is received that's greater strong than secondary carbocation intermediate.

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The compound that would form a precipitate in water is  BaSO4.

option d.

BaSO4 (barium sulfate) would form a precipitate in water because it is classified as an insoluble compound according to most solubility charts. When a compound is considered insoluble, it means that it has a very low solubility in water, resulting in the formation of solid particles or precipitate when dissolved in water.

In the case of BaSO4, it does not readily dissociate into ions in water and remains as solid particles, causing it to precipitate.

On the other hand, a. KCI (potassium chloride), b. NaOH (sodium hydroxide), and c. (NH4)2S (ammonium sulfide) are soluble compounds in water. They dissociate into ions and form homogenous solutions when dissolved in water, without forming a precipitate.

It's worth noting that solubility can vary depending on factors such as temperature and concentration, so it's always important to consult a solubility chart or reference for accurate and up-to-date information on specific compounds.option d.

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The number of carbon atoms present in 1.25 mol of silver acetate is 1.875 × 10²³.

Avogadro's number is define as the number of atoms of any substance present in one mole of that substance, and it is equal to 6.022 × 10²³, i.e.
1 mole = 6.022 × 10²³ atoms/mol

Given moles of silver acetate = 1.25 moles

Number of atoms of silver acetate in 1.25 moles = 1.25 × 6.022 × 10²³ = 7.5×10²³

Molecular formula of silver acetate is CH₃CO₂Ag, means in this molecule total 8 atoms are present so number of carbon atom will be calculated as:

Carbon atoms = (2× 7.5 × 10²³) / 8 = 1.875 × 10²³ atoms [here we multiply by 2 because 2 atoms of carbon is present in olecule]

Hence required atoms of carbon is 1.875 × 10²³.

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Answer:

289.8g

Explanation:

Using the formula as follows:

mole = mass/molar mass

Molar mass of SnF = 119 + 19

= 138g/mol

Using mole = mass/molar mass

2.1 = mass/138

mass = 2.1 × 138

mass = 289.8g

AgCl would have the lowest solubility in 0.020 M BaCl2. The maximum amount of a chemical that will dissolve in a given amount of solvent at a given temperature is referred to as its solubility.

There is a wide range in the solubilities of different substances, and this characteristic of a specific solute-solvent pair is obvious. The equilibrium constant for a solid material dissolving in an aqueous solution is the solubility product constant. Ksp. It refers to how much a solute dissolves in a solution. The Ksp value of a substance rises as its solubility does. The least soluble substance is BaCl2, which also has the lowest Ksp of 0.020 M.

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This canyon is an example of how the surface of Earth changes slowly due to the slow and gradual process of erosion by water and wind.

The slow and gradual process of erosion by water and wind is responsible for the slow change in the surface of Earth demonstrated by the canyon.

The canyon demonstrates how the surface of Earth changes slowly due to the process of erosion by water and canyon, which gradually wear away the rock and reshape the landscape over millions of years.

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Electrical charges on molecules affect diffusion across a membrane. This is because the membrane is selectively permeable and only allows certain molecules to pass through based on their charge and size.

Diffusion refers to the movement of particles (atoms, ions, or molecules) from an area of high concentration to an area of low concentration. Diffusion across a membrane can occur via simple diffusion or facilitated diffusion.

Simple diffusion is the process by which substances move across the lipid bilayer of a cell membrane down their concentration gradient without any energy input.Facilitated diffusion, on the other hand, is a process in which ions and polar molecules move across a membrane down their concentration gradient with the help of membrane proteins.Electrical charges on molecules influence the rate and direction of diffusion.

Molecules with like charges repel each other and move away from each other, while those with opposite charges attract and move towards each other. Thus, molecules with the same charge may experience more difficulty diffusing across a membrane than those with opposite charges, depending on the characteristics of the membrane and the properties of the molecules.

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