Ifa non metal on the periodic table bonds with another nonmetal, what happens? A. all of the above are true B. electrons are shared. C. a molecular compound forms. O D. a covalent bond is involved.

Explanation:

Since [H+] [OH-] =10^(-14)

[H+] = (10^-14) / (1.4×10^-10)

When steel and zinc were connected, zinc is the cathode. The term cathode refers to the electrode that is reduced during an electrochemical reaction.

The electrons are moved from the anode to the cathode during an electrochemical reaction in order to maintain a current in the wire that links the two electrodes.

According to the galvanic series, zinc is more active than iron, meaning that it is more likely to lose electrons and be oxidized. As a result, when steel and zinc are connected, zinc will act as the anode and lose electrons, whereas iron (steel) will act as the cathode and receive the electrons transferred by zinc.

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Answer:

The high melting point is also consistent with its description as an ionic solid. In the crystal, each S2− ion is surrounded by an octahedron of six Ca2+ ions, and complementarity, each Ca2+ ion surrounded by six S2− ions.

Explanation:

You can use the periodic table to predict whether an atom will form an anion or a cation, and you can often predict the charge of the resulting ion. Atoms of many main-group metals lose enough electrons to leave them with the same number of electrons as an atom of the preceding noble gas. To illustrate, an atom of an alkali metal (group 1) loses one electron and forms a cation with a 1+ charge; an alkaline earth metal (group 2) loses two electrons and forms a cation with a 2+ charge, and so on. For example, a neutral calcium atom, with 20 protons and 20 electrons, readily loses two electrons. This results in a cation with 20 protons, 18 electrons, and a 2+ charge. It has the same number of electrons as atoms of the preceding noble gas, argon, and is symbolized Ca2+. The name of a metal ion is the same as the name of the metal atom from which it forms, so Ca2+ is called a calcium ion.

When atoms of nonmetal elements form ions, they generally gain enough electrons to give them the same number of electrons as an atom of the next noble gas in the periodic table. Atoms of group 17 gain one electron and form anions with a 1− charge; atoms of group 16 gain two electrons and form ions with a 2− charge, and so on. For example, the neutral bromine atom, with 35 protons and 35 electrons, can gain one electron to provide it with 36 electrons. This results in an anion with 35 protons, 36 electrons, and a 1− charge. It has the same number of electrons as atoms of the next noble gas, krypton, and is symbolized Br−. (A discussion of the theory supporting the favored status of noble gas electron numbers reflected in these predictive rules for ion formation is provided in a later chapter of this text.)

The answer is 58.4 g of H₃PO₄

Given that mass of Ca₃(PO₄)₂ is 153g

mass of H₂SO₄ is 87.6g

We need to calculate the mass of H₃PO₄

So the balanced chemical reaction is

Ca₃(PO₄)₂  +  3H₂SO₄  ⇒   3CaSO₄  +  2H₃PO₄

Let us calculate the molar mass of the reactants

Ca₃(PO₄)₂ = (3 x 40) + (2 x 31) + (8 x 16)

= 120 + 62 + 128

= 310 g

H₂SO₄ = (1 x 2) + (32 x 1) + (16 x 4)

= 2 + 32 + 64

= 98 g

Now let us calculate the limiting reactant

The Theoretical Yield =  Ca₃(PO₄)₂ / H₂SO₄

= 310 / 3(98)

= 1.05

The Experimental yield

Ca₃(PO₄)₂ / H₂SO₄

= 153 / 87.6 = 1.74

Because the observed percentage was more than the predicted proportion, H2SO4 is the limiting reactant.

Let us Calculate the molar mass of H₃PO₄

H₃PO₄ = (1 x 3) + (31 x 1) + (16 x 4)

= 3 + 31 + 64

= 98 g

Now Calculate the mass of H₃PO₄

3(98) g of H₂SO₄ ------------------ 2(98) g of H₃PO₄

87.6 g of H₂SO₄ ------------------  x

x = ( 87.6 x 2 x 98) / (3 x 98)

x = 17169.6 / 294

x = 58.4g of H₃PO₄

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The antibonding σ* orbital in the n-h bond of the given molecule has one node. The antibonding σ* orbital is formed when two atomic orbitals combine and their phases cancel out, resulting in a node or a region of zero electron density. In the case of the n-h bond, the antibonding σ* orbital is formed due to the overlap of the nitrogen 2p orbital and the hydrogen 1s orbital. This results in one node in the antibonding σ* orbital.

The presence of a node in the antibonding σ* orbital means that the probability of finding an electron in the bond region is low, indicating weak bonding between the atoms. This is in contrast to the bonding σ orbital, which has no nodes and represents strong bonding between the atoms.

The antibonding σ* orbital in the N-H bond has two nodes. In a σ bond, the orbitals of the two atoms overlap linearly along the internuclear axis. For the N-H bond, this involves the overlap of the 1s orbital of the hydrogen atom and an sp3 hybrid orbital of the nitrogen atom.
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The oxidation of co (carbon monoxide) to less-harmful co₂ (carbon dioxide) and the oxidation of hc (unburned hydrocarbons) to co₂ (carbon dioxide) and h₂o (water).

Oxidation is that the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation number of a molecule, atom or ion is increased. the other process is called reduction, which occurs when there's a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.

The term oxidation was first employed by Antoine Lavoisier to signify the reaction of a substance with oxygen. Much later, it had been realized that the substance, upon being oxidized, loses electrons, and therefore the meaning was extended to include other reactions in which electrons are lost, no matter whether oxygen was involved.

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A molecule having four total electron groups around the central atom has three bonding electron groups and one nonbonding electron group. Its molecular structure is trigonal pyramidal.

One or more atoms are joined by covalent (chemical) bonds to form molecules. Atoms can be represented as circles with a nucleus at their center (consisting of protons and neutrons) and one or more concentric circles around them, which represent the "shells" or "levels" in which the electrons surrounding the atom's nucleus are located, along with markings indicating the electron at each level. The lowest unit into which a substance can be divided while still being the same substance is a molecule. It is composed of two or more atoms that are chemically bonded to one another.

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1/4  temperature must give Mass of nitrogen at 0°c heated so that both it volume and pressure will be double.​

To double both the volume and pressure of a given mass of nitrogen at 0°C, we can utilize the combined gas law, which relates the initial and final states of a gas. The combined gas law is expressed as:

(P1 * V1) / T1 = (P2 * V2) / T2

Where P1 and P2 are the initial and final pressures, V1 and V2 are the initial and final volumes, and T1 and T2 are the initial and final temperatures.

Since we want to double both the volume and pressure, we can set P2 = 2P1 and V2 = 2V1. Plugging these values into the combined gas law equation, we get:

(2P1 * 2V1) / T1 = P1 * V1 / T2

Simplifying the equation, we find:

4P1V1 = P1V1 / T2

Cancelling out the common terms, we have:

4 = 1 / T2

Rearranging the equation, we find:

T2 = 1 / 4

Therefore, to double both the volume and pressure of the given mass of nitrogen at 0°C, it must be heated to a temperature of 1/4 or 0.25 times its initial temperature.

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Answer: 44000 g

Explanation:

For every 250mL of juice, there is 22g of sugar. So for 2000mL,

2000*22g = 44000g of sugar in the bottle of juice

The statement that is true concerning the given compound is:

c. It should dissolve in water.

Certain chemical entities are associated with chemical compounds. These groups project specific properties onto compounds. These chemical groups are called functional groups. An example of such a functional group is COOH in carboxylic acids.

When a hydroxyl group is attached to a compound, the compound has the property of being soluble in water. The hydroxyl group is composed of hydrogen and oxygen, which makes the compound more soluble in water. Hence option c. The correct answer is that it dissolves in water.

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Complete question is:

A compound contains hydroxyl groups as its predominant functional group. Which of the following statements is true concerning this compound?

a. It won't form hydrogen bonds with water.

b. It is hydrophobic.

c. It should dissolve in water.

d. It lacks an asymmetric carbon, and it is probably a fat or lipid. e. It should dissolve in a nonpolar solvent.

Answer:

The SI system : The international system of units.

It is a scientific method of expressing the magnitudes or quantities of important natural phenomena.

Benefits of SI system

Answer:

Decay. Plutonium-242 primarily decays into uranium-238 via alpha decay, before continuing along the uranium series.

Explanation:

please mark as brainlist

The two ways in which the physical state of matter can be changed are melting and freezing.

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The synthesis of aromatic 1,2-amino alcohols using a bienzymatic dynamic kinetic asymmetric transformation (bienzymatic DKAT) is a 3 step process involving synthesis of ketones, enantioselective reduction of lactols and synthesis of aromatic 1,2-amino alcohols

Step-by-step method :

Step 1: Synthesis of ketones

Starting with a ketone as the substrate, add the enzyme galactose oxidase (GOx) and an oxidant such as sodium periodate (NaIO4) to convert the ketone to a lactol. This transformation takes place at room temperature in a mixture of water and tetrahydrofuran (THF). The reaction mixture was then filtered to remove any precipitate, and the aqueous phase was extracted with ethyl acetate (EtOAc) to give the product in good yield.

Step 2: Enantioselective reduction of lactols

Use the enzyme alcohol dehydrogenase (ADH) and an NADH cofactor to perform an enantioselective reduction of lactols. This transformation takes place at room temperature in a mixture of water and isopropanol (IPA). The product is a chiral alcohol with high enantioselectivity.

Step 3: Synthesis of aromatic 1,2-amino alcohols

The chiral alcohol can be transformed into an amino alcohol using a reductive amination reaction with ammonia or an amine. This transformation takes place at room temperature in a mixture of water and ethanol (EtOH) or isopropanol (IPA). The resulting product is a 1,2-amino alcohol with high diastereoselectivity and enantioselectivity. This bienzymatic DKAT method is an effective and efficient way to synthesize aromatic 1,2-amino alcohols.

Thus, the step-by-step method of synthesis of aromatic 1,2-amino alcohols using a bienzymatic dynamic kinetic asymmetric transformation is explained above.

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B) 0 lone pairs, tetrahedral. the number of lone pairs around the central atom and the molecular geometry of CBr4 is 0 lone pairs, tetrahedral.

Lewis structure CBr4 has four bromine atoms encircling the carbon atom in the center. The Lewis structure of CBr4 contains 4 bound pairs and a total of 12 lone pairs.

geometrical tetrahedron

CBr4 crystallizes in the monoclinic C2/c space group and has an iron carbide-like structural makeup. There are 32 carbon tetrabromide molecules in the zero-dimensional structure. Four Br1- atoms are joined in a tetrahedral shape by C4+. The C-Br bond length is divided into two shorter (1.95 ) and two longer (1.97 ) lengths.

Tetra-bromomethane, or carbon tetrabromide, is an organic molecule with the chemical formula CBr4 (carbon bromide). Both names comply with IUPAC nomenclature and are acceptable.

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The organic product formed when cyclopentene reacts with iodobenzene in the presence of triethylamine and a Pd(0) catalyst is 1-iodocyclopentene.

The reaction you are describing is a cross-coupling reaction known as a Heck reaction. In this reaction, cyclopentene acts as the alkene component, while iodobenzene acts as the aryl halide component. Triethylamine serves as a base to remove the acidic proton from cyclopentene and facilitate the reaction.

The Pd(0) catalyst helps in the formation of the carbon-carbon bond between cyclopentene and iodobenzene. The reaction proceeds by the Pd(0) catalyst coordinating with the alkene and the aryl halide, followed by insertion of the alkene into the Pd-aryl bond. This generates a Pd-alkyl intermediate, which then undergoes reductive elimination to form the final product, 1-iodocyclopentene.

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The reaction of cyclopentene with iodobenzene in the presence of triethylamine and a Pd(0) catalyst leads to the formation of substituted cyclopentene products.

When cyclopentene reacts with iodobenzene in the presence of triethylamine and a Pd(0) catalyst, the organic product formed is a substituted cyclopentene. The reaction is an example of a palladium-catalyzed cross-coupling reaction known as the Heck reaction.

In this reaction, the Pd(0) catalyst facilitates the insertion of the aryl group from iodobenzene into the double bond of cyclopentene. Triethylamine acts as a base to deprotonate the cyclopentene, making it more reactive towards the Pd(0) catalyst.

The specific product formed depends on the regioselectivity and stereoselectivity of the reaction. In the case of cyclopentene, the reaction can occur on either side of the double bond, resulting in two possible products.

One possible product is the 3-substituted cyclopentene, where the iodobenzene adds to the carbon adjacent to the double bond. Another possible product is the 4-substituted cyclopentene, where the iodobenzene adds to the carbon opposite the double bond.

Both products can be obtained in varying amounts depending on the reaction conditions and the electronic and steric factors involved.

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Answer:

Explanation:

I believe there is a mistake in the temperature values provided in your question. Water cannot exist at a temperature of 283.0°C or 303.0°C, as it boils at 100°C and freezes at 0°C under standard conditions.

If you meant to say that the initial temperature of the water was 283.0K and the final temperature was 303.0K, then we can use the formula:

q = m * c * ΔT

where q is the amount of energy absorbed, m is the mass of water, c is the specific heat capacity of water, and ΔT is the change in temperature.

The specific heat capacity of water is approximately 4.18 J/g*K.

Using the values given, we have:

m = 20.0 g

c = 4.18 J/g*K

ΔT = 303.0K - 283.0K = 20.0K

Plugging in these values, we get:

q = 20.0 g * 4.18 J/g*K * 20.0K = 1672 J

Therefore, 20.0 g of water must absorb 1672 J of energy to increase its temperature from 283.0K to 303.0K.

The mass of a neutron without using scientific notation and powers of ten. The mass of a neutron is slightly greater than the mass of a proton, which is 1 atomic mass unit (AMU).

Particle           Symbol                            Mass (amu)

proton                p+                                       1

electron                e−                                  5.45 × 10−4

neutron         n0                                              1

A neutron is an atom with the atomic number 10. Its atomic mass is 20.179, resulting in 10 neutrons and 10 protons in the nucleus, and 10 electrons outside. Neon; Neon, Ne is a colorless noble gas and also the second lightest noble gas. Neutron and proton masses are 1.0087 amu and 1.0073 amu respectively.

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Answer:

ide

Explanation:

the metal keeps its name in an ionic compound, the suffix of the nonmetal is changed to "ide" (ie sodium chloride, NaCl)

The balanced equation for the reaction of solid magnesium and silver nitrate solution is: `Mg(s) + 2AgNO₃(aq) → Mg(NO₃)₂(aq) + 2Ag(s)`.

This equation shows that one atom of magnesium reacts with two molecules of silver nitrate to produce one molecule of magnesium nitrate and two atoms of solid silver. The coefficients in the equation are balanced to ensure that the same number of atoms of each element are present on both sides of the equation.

In this reaction, magnesium is a more reactive metal than silver, so it displaces the silver from the silver nitrate solution. This is an example of a single replacement reaction, in which one element replaces another in a compound.

Overall, this reaction is exothermic, meaning that it releases heat energy as it occurs. The balanced equation allows us to predict the amount of each reactant and product that will be present in the reaction, as well as the energy changes that will occur.

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Answer:

B

Explanation:

Both plain and plateau have flat surfaces. However, a plain is located in a low-lying area while a plateau is located on an elevated area. In essence, a plateau can be viewed as an elevated plain or a plain that is bordered by cliffs.

The correct option is B.

When each trial is started with 10.0 g of tert-butanol the freezing points would be higher. Hence option A is correct.

Generally the term freezing point is described as the, temperature at which a liquid becomes a solid. Basically with the melting point, increase in the pressure usually increases the normal freezing point. Basically the freezing point is always lower than the melting point in the case of mixtures and also for certain organic compounds such as fats.

When each trial is started with 10.0 g of tert-butanol the freezing points would be higher because there is more tert-butanol present in order to balance out the additives added to the solution. Therefore, when each trial is started with 10.0 g of tert-butanol, the freezing points would be higher. Hence, option A is correct.

The given question is incomplete the complete question is given as,

If each trial started with 10.0 g of tert-butanol, what would have changed? explain your reasoning.

a) the freezing points would be higher

b) the freezing points would be lower

c) the freezing points doesn't change

d) None of the above

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A polymer mixture p that has number-average and weight-average molecular weights of 120,000 and 300,000 and then Number average molecular weight is 110,000 g/mol

a) The number average molecular weight (NAM) is calculate using the mole numbers of each component. In this case, we will multiple each component molecular weight by the number of moles of each one. After that we will sum them and finally to divide by the total number of moles.

NAM = (Na*MA + Nb*MB)/(Nt)

NAM = (1 mol *120000 g/mol + 1*100000 g/mol ) /(2 mol)

NAM = 110000 g/mol

The number average molecular weight for the polymer P is 110,000 g/mol

We have a polymer P made up of two monodisperse fractions.

A with molecular weight of MA = 120000 g/mol and B with MB =100000 g/mol.  

The batch contains an equal mole fraction of each component A and B.  

Let's suppose a total number (Nt) of mols 2 moles. Equal fraction means XA = 0.5 and XB =0.5

Nt = 2 mol

Na = 2*0.5 = 1 mol

Nb = 2*0.5 = 1 mol.

So, we have 1 mol of A, 1 mol of B and 2 moles in total.  

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Answer:

I think C option ✔️ ✔️ correct

On the pH scale, the pH range for an acid is 0–7 and the pH range for a base is 7–14. pH 7 refers to a neutral solution. pH-7 pure water is a substance considered neutral.

This substance, which consists of a water molecule with a proton (H+) added, is an ion because it has a charge. It is known as the hydronium ion and has the formula H3O+. When an acid dissolves in water, the hydronium ion is always produced. Always interacting with the nearby water molecule to generate H3O+, the acid's H+.

For the detection of trace gases in the air, chemical ionization using proton-transfer reactions with hydronium ions (H3O+) is frequently used.

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Explanation:

Covalent bonds can be classified based on the number of bonds between atoms into three categories:

1. Single Covalent Bond: In a single covalent bond, two atoms share one pair of electrons. This is the most common type of covalent bond. For example, in H2O, each hydrogen atom forms a single covalent bond with the oxygen atom.

2. Double Covalent Bond: In a double covalent bond, two atoms share two pairs of electrons. This bond is stronger than a single covalent bond. For example, in O2, the oxygen atoms are connected by a double covalent bond.

3. Triple Covalent Bond: In a triple covalent bond, two atoms share three pairs of electrons. This bond is the strongest among the three types. For example, in N2, the nitrogen atoms are connected by a triple covalent bond.

It is important to note that the number of bonds between atoms is determined by the number of electrons they need to achieve a stable electron configuration, which varies depending on the elements involved.

The covalent bond is classified mainly into three types

single, double and triple bonds.

Covalent bond is a bond formed between two atoms through the sharing of two electrons between them.  The atoms will share more than one electron pairs if the valency is not satisfied.  the three types of covalent bond are single bond, double bond and triple bond.

single bond is formed when one pair of electrons are shared between atoms, while if two pairs or three pairs are shared, it is called double or triple bond respectively. Covalent compounds are those which contains covalent bonding.

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Ethanol is produced when ethane and ethene react with water and a catalyst like sulfuric acid. Adding concentrated sulfuric acid to hot ethanol (acts as a catalyst).

To eliminate carbon dioxide and sulphur dioxide that are created as byproducts, the gases are passed through a sodium hydroxide solution. The main product that is gathered over water is ethene. As a result, dehydration of ethanol produces ethene rather than ethane. The names Mattling acid and Oil of Vitriol are other names for sulfuric acid. It is highly caustic and acidic in nature. It dehydrates and oxidises when  present in higher amounts. It is a clear, syrup-like liquid with no colour or smell. A substance having the chemical formula C 2H 6, ethane is an organic chemical.

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