3. How is the metallic bonding different than ionic or covalent bonding? What are some properties of metals that
result from this type of bonding? Explain/connect how the nature of the bonding leads to the properties of
metallic substances.

Write complete and net ionic equations for the given reactions by identifying the states of the reaction products.

How to write complete and net ionic equations for the given reactions?

(1) Complete Ionic Equation:

2K⁺(aq) + SO₄²⁻(aq) + 2Na⁺(aq) + NO₃⁻(aq) → 2K⁺(aq) + 2NO₃⁻(aq) + Na⁺(aq) + SO₄²⁻(aq)

Net Ionic Equation:

2K⁺(aq) + 2NO₃⁻(aq) → 2K⁺(aq) + 2NO₃⁻(aq)

(2) Complete Ionic Equation:

Ca²⁺(aq) + 2Br⁻(aq) + 2Na⁺(aq) + SO₄²⁻(aq) → Ca²⁺(aq) + SO₄²⁻(aq) + 2Na⁺(aq) + 2Br⁻(aq)

Net Ionic Equation:

Ca²⁺(aq) + SO₄²⁻(aq) → Ca²⁺(aq) + SO₄²⁻(aq)

(3) Complete Ionic Equation:

Pb²⁺(aq) + 2IO₃⁻(aq) + Na⁺(aq) + OH⁻(aq) → Pb(IO₃)₂(s) + Na⁺(aq) + OH⁻(aq)

Net Ionic Equation:

Pb²⁺(aq) + 2IO₃⁻(aq) + 2OH⁻(aq) → Pb(IO₃)₂(s) + 2OH⁻(aq)

(4) Complete Ionic Equation:

2K⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2Cl⁻(aq) → 2K⁺(aq) + 2Cl⁻(aq) + BaSO₄(s)

Net Ionic Equation:

Ba²⁺(aq) + SO₄²⁻(aq) → BaSO₄(s)

Learn more about Ionic Equation

brainly.com/question/13887096

#SPJ11

\(n=\dfrac{m}{M}\) where n is moles, m is mass and M is molar mass.

To solve for mass, isolate m:

\(m=nM\)

Input given information:

\(m=5.8*58.44\\m=338.952\\m=340\)

There are 340 g in 5.8 mol of NaCl.

The percent composition of water : 90.2%

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight / volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

mass of water = 4.6 g

mass of Copper chloride = 0.5 g

mass of solution :

\(\tt mass~solution=mass~water+mass~Copper~chloride\\\\mass~solution=4.6+0.5\\\\mass~solution=5.1~g\)

So the percent composition of water (%mass) :

\(\tt \%water=\dfrac{mass~water}{mass~solution}\times 100\%\\\\\%water=\dfrac{4.6~g}{5.1~g}\times 100\%\\\\\%water=90.2\%\)

In a protein, hydrophobic amino acids are likely to be found in the interior, whereas hydrophilic amino acids are likely to be in contact with the aqueous environment.

Amino acids are the compounds or building blocks that make up peptides and proteins. Each amino acid is structured from an amino group and a carboxyl group bound to the tetrahedral carbon. This carbon is designated as the α-carbon (alpha-carbon).

Amino acids differ from each other with respect to their side chains, which are referred to as alkyl groups. The R group for each of the amino acids will differ in structure, electrical charge, and polarity.

The hydrophobicity index is a measure of the relative hydrophobicity, or how soluble an amino acid is in water. In a protein, hydrophobic amino acids are likely to be found in the interior, whereas hydrophilic amino acids are likely to be in contact with the aqueous environment.

The values in the table below are normalized so that the most hydrophobic residue is given a value of 100 relative to glycine, which is considered neutral (0 value). The scales were extrapolated to residues which are more hydrophilic than glycine.

To know more amino acids

https://brainly.com/question/28409615

#SPJ4

The reaction occurs too quickly to get good data therefore, it is necessary to dilute the bleach solution given. Hence, option D is correct.

Bleaching solution is called as household bleach. It is a solution that includes about 3–8% sodium hypochlorite and 0.01–0.05% sodium hydroxide and uses oxidation to remove stuffs, whiten and disinfect.

Household bleach change state with a solution of green food coloring to first oxidize the yellow component of the dye, leaving only the blue coloring. Finally, the blue dye is also oxidized, and the solution becomes colorless.

Thus, The reaction occurs rapidly to get good data so,it is necessary to dilute the bleach solution given, option D is correct.

To learn more about the bleach solution, follow the link;

https://brainly.com/question/24354091

#SPJ1

Answer:

n = 2

l = 1

m = 1

s = +1/2

Explanation:

₇N tiene la configuración electrónica;

1s2 2s2 2p3

Esto implica que este último electrón tiene los siguientes números cuánticos;

n = 2

l = 1

m = 1

s = +1/2

Este último electrón estará en un orbital de 2pz como lo muestran los números cuánticos enumerados anteriormente.

The intermolecular forces of attraction between two different molecules are called adhesive forces.

Adhesive forces refer to the attractive forces between molecules of different substances. These forces occur at the interface or boundary between the two substances.

When different molecules come into contact, such as a liquid and a solid, the adhesive forces cause the molecules to stick or adhere to each other.

These forces are responsible for various phenomena, such as capillary action, where a liquid can rise or be drawn into a narrow tube against the force of gravity.

Adhesive forces also play a role in the wetting of surfaces, where a liquid spreads out or forms a thin film on a solid surface.

Know more about adhesive forces:

https://brainly.com/question/30124755

#SPJ4

Answer

moles = 5.81 mol

Explanation

Given:

Volume = 144 L

AT SATP

1 mole = 24.4651 L

Solution:

1 mole = 24.4651 L

x mole = 144 L

x = 144/24.4651

x = 5.8 mol

Explanation:

require an emergency support immediately

Approximately 3.844 grams of N2 are produced from the reaction of 9.35 g of H2O2 and 5.19 g of N2H4.

We need to first write the balanced chemical equation for the reaction:
2 H2O2 + N2H4 -> 3 H2O + N2
From the balanced equation, we can see that 2 moles of H2O2 react with 1 mole of N2H4 to produce 1 mole of N2.
Now, let's calculate the number of moles of H2O2 and N2H4 given their respective masses:
Molar mass of H2O2 = 34.0147 g/mol
Molar mass of N2H4 = 32.0468 g/mol

Number of moles of H2O2 = 9.35 g / 34.0147 g/mol
Number of moles of N2H4 = 5.19 g / 32.0468 g/mol

Now, using the mole ratio from the balanced equation, we can calculate the number of moles of N2 produced:
Number of moles of N2 = (Number of moles of H2O2) * (1 mole of N2 / 2 moles of H2O2)
                     = (Number of moles of H2O2) / 2

Number of moles of N2 = 9.35 g / 34.0147 g/mol / 2
                    = 0.1372 mol

Finally, to determine the number of grams of N2 produced, we multiply the number of moles by the molar mass of N2:

Number of grams of N2 = (Number of moles of N2) * (molar mass of N2)
                    = 0.1372 mol * 28.0134 g/mol
                    = 3.844 g

To know more about  chemical equation visit:-

https://brainly.com/question/28792948

#SPJ11

Answer:

The symbol of the Element is simply just the abbreviation.  

Mercury: Hg  

Potassium: K  

Nitrogen: N  

Copper: Cu  

Sulphur: S  

Carbon: C  

Chlorine: Cl  

Oxygen: O  

The number of unpaired valence electrons determine the radical in any element.  

Mercury: Hg 2+  

Potassium: K+  

Nitrogen: N 2+  

Copper: Cu 2+  

Sulphur: S 2-  

Carbon: C 4+  

Chlorine: Cl -  

Oxygen: O 2-  

Glad I could help. Thanks for the question! Have a great day, and feel free to mark this brainliest!

Compost experts recommend a carbon-to-nitrogen (C:N) ratio of around 30:1 in order to optimize the decomposition process of composting.

This proportion offers a healthy balance of nitrogen- and carbon-rich materials, such as grass clippings or dried leaves, which are required for the development of microorganisms that break down organic matter in the compost pile.

A C:N ratio that is too high in nitrogen may result in an offensive odor or the attraction of pests, while a C:N ratio that is too high in carbon may cause slow decomposition.

To know more about  decomposition. here

https://brainly.com/question/21491586

#SPJ4

The right answer is B, where n is changed from 3 to 1. A transition's energy release is given by E 36Z2(1n211n22)eV.

What in spectroscopy is a transition?

When an electron is promoted from a full orbital to an empty orbital, transitions take place. In -bonds, sigma electrons are found.

The relationship between electron transitions and wavelength

Planck's equation, E = h, relates the energy change connected to a transition to the wavelength of the electromagnetic wave. The formula c = links the wave's frequency to both its wavelengths and the light's speed.

To know more about transition visit

brainly.com/question/18156550

#SPJ4

Answer:

See explanation

Explanation:

The third law of thermodynamics states that "the entropy of a perfect crystal of a pure substance approaches zero as the temperature approaches zero" (Wikipedia).

One example of the third law of thermodynamics has to do with steam. Steam is gaseous water. Since it is a gas, its molecules are free to move around therefore its entropy is high. When the temperature of the steam is decreased below 100 degrees, the molecules of steam loose energy and turn into liquid water and do not move as freely as they did in the gaseous state. If the temperature is further decreased to yield ice at zero degrees, the molecules of water are "frozen" in their positions and the entropy of the system decreases to zero.

Also, the ions in ionic crystal solids move around when the substance is in solution or in molten state hence the substance conducts electricity. When the ionic substance is in solid state, the ions do not move about and the entropy of the solid system tends towards zero.

2M is more preferable and acceptable

In muscle function at the sarcomere level, the regulation of cross-bridge formation is dependent on the binding of calcium ions to the protein troponin. Hence, the correct answer is B. calcium; troponin.

In muscle function at the sarcomere level, the formation of cross-bridges between actin and myosin filaments is regulated by the binding of calcium ions to troponin. Troponin is a regulatory protein complex that is associated with the actin filaments in the sarcomere. When calcium ions bind to specific binding sites on troponin, it causes a conformational change in the troponin-tropomyosin complex. This conformational change exposes the active sites on actin, allowing the myosin heads to bind to actin and form cross-bridges. This interaction between actin and myosin leads to muscle contraction.

Sodium ions do not directly regulate the formation of cross-bridges in muscle function. Tropomyosin is a structural protein that is involved in covering the binding sites on actin in the absence of calcium. However, it is the binding of calcium ions to troponin that initiates the conformational change in the troponin-tropomyosin complex, allowing the cross-bridge formation and muscle contraction to occur.

Learn more about calcium ions here:

https://brainly.com/question/13160542

#SPJ11

The secretion of acids, buffers, enzymes, and water aids in the breakdown of food.

The food moves through the gastrointestinal tract and breaks down into smaller particles for energy, cell repair, and growth.

Digestion begins when eating and chewing food with the help of teeth in the mouth, then it goes down to the small intestine.

While moving through the gastrointestinal tract it mixes with juices, buffers, acids, enzymes, and water which disintegrates the large molecules of food into smaller ones and makes it suitable for assimilation and absorption in the body.

To put it simply, the secretion of acids and acidic juices is responsible for food digestion.

If you need to learn more about buffer click here:

https://brainly.com/question/1385846

#SPJ4

The molecular shape of NOCl as predicted by the VSEPR theory is trigonal pyramidal.

VSEPR stands for Valence Shell Electron Pair Repulsion. It is a model that is used to predict the geometry of a molecule based on the number of electron pairs around the central atom. According to this model, the electron pairs in the valence shell of the central atom are arranged as far apart as possible to minimize repulsion. This leads to a specific geometry that is characteristic of the molecule.

NOCl has a central nitrogen atom (N) with one lone pair and two bond pairs of electrons. The Cl atoms are attached to the N atom by covalent bonds. The lone pair of electrons and two bond pairs repel each other and tend to arrange themselves as far apart as possible. As a result, the molecule takes a trigonal pyramidal shape, with the N atom at the apex and the Cl atoms at the base.

Therefore, the molecular shape of NOCl as predicted by the VSEPR theory is trigonal pyramidal.

Learn more about VSEPR theory here:

https://brainly.com/question/17177984

#SPJ11

The mass in grams for each compound at STP is as follows:

To find the mass of a gas at STP (Standard Temperature and Pressure), we can use the ideal gas law, which states:

PV = nRT

Where P is pressure (usually 1 atm at STP), V is volume, n is the number of moles, R is the ideal gas constant (0.0821 L·atm/(mol·K)), and T is the temperature (usually 273 K at STP).

By rearranging the equation and plugging in the given values for pressure (1 atm) and temperature (273 K), we can solve for the number of moles. Then, using the molar mass of each gas, we multiply the number of moles by the molar mass to obtain the mass in grams. The molar mass of H₂ is approximately 2 g/mol, CO₂ is 44 g/mol, SO₂ is 64 g/mol, and F₂ is 38 g/mol.

Learn more about STP here https://brainly.com/question/30550516

#SPJ11

The freezing point of the solution is -3.53°C.

The Chemical equation of the HBr is -

              HBr → H⁺ + Br ⁻

Initial -     1         0      0

Final -      1-α     α       α

The total moles = 1 - α + α + α

                          = 1 + α

half factor = i = Total mol / Initial mol

                      = 1 + α / 1

                      = 1 + α

Now, Evolution in freezing point

                         ΔT f = i Kf m

                          kf = 1.86                                                (given)

   m(molality = mass of solute / solvent (Kg))

                        Δ T f  = (1 + α) × 1.86 × (mass/molar mass ) / solvent

   [ α = 90/100 = 0.9 because 90% ionised]

  putting the values in above equation -

                           = (1 + 0.9) × 1.86 × (8.1 × 1000) / 81 × 100(gm)

                              ΔT = 3.53°C

    Then freezing point T f =  T° f - ΔT

                            = 0 - 3.53°C

                           T f = -3.53°C

To learn more about Freezing point from given link

https://brainly.com/question/28182670

#SPJ4

Complete Question -

What is the freezing point of a solution containing 8.1 g HBr in 100gm. water assuming the acid to be 90% ionised:

[Kf for water =1.86Kmolarity^−1 ]

The high-density brine drains into the water beneath the ice and in the process, the sea ice freshens while the salinity of the underlying water decreases, becoming less dense (Option C).

Sea ice is usually less salty than the ocean water it freezes from. During the process of ice formation, salt in the ocean water is expelled from the ice as it grows; most of the salt is ejected into the ocean but some remain trapped inside pockets of brine within the ice. When the air temperature falls below the freezing point of seawater (usually around -1.8 °C), water molecules start to form ice crystals, which grow and aggregate into a solid sheet of ice.

During this process, the salt rejected by the growing ice also accumulates, causing the salinity of the remaining brine to increase. Some of the brine is encapsulated within ice crystals, but most are trapped in the spaces between neighboring crystals.

Thus, the correct option is C.

Learn more about brine: https://brainly.com/question/14667236

#SPJ11

Answer:

2, 8, 8

Explanation:

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

Answer:

since the temperature is approximate to room temperature at a small pressure of 25atm, carbon dioxide is in gas phase.

Answer:

Explanation:

C. It is in the gas phase.

D. Able to answer for one's conduct and obligations

The amygdala is a pair of almond-shaped structures located in the brain's temporal lobes. It is part of the limbic system, which is involved in the processing of emotions and memory. The amygdala is involved in the formation of memories associated with emotional events, as well as the reaction to those memories.

The amygdala also plays a role in the regulation of the body's fight-or-flight response, which is the autonomic nervous system's response to danger or perceived danger. It is thought to be involved in the formation of fears and phobias, as well as the development of aggressive behaviors. In addition, the amygdala is believed to be involved in the processing of social cues, such as facial expressions and body language.

Learn more about the amygdala here:

https://brainly.com/question/24171355

#SPJ1

The electricity generated that powers the watch by zinc in the battery combines with oxygen in the air, zinc oxide forms reaction is a product.

For more information on zinc batteries kindly visit to

https://brainly.com/question/15308599

#SPJ1

In an ionic salt where the anion is relatively large compared to the size of its cation, the cation is typically arranged in a close-packed array.

This arrangement allows for efficient packing of the smaller cations around the larger anions, maximizing the attractive electrostatic interactions between them.

Close-packed arrays are characterized by the arrangement of spheres in a way that maximizes the packing density.

The two common types of close-packed structures are face-centered cubic (FCC) and hexagonal close-packed (HCP). In both structures, the spheres are arranged in layers, and each sphere is surrounded by its nearest neighbors.

In the case of an ionic salt with a large anion and a smaller cation, the cation will fit better within the interstitial spaces between the anions.

This allows the cations to form a close-packed arrangement around the anions, maximizing the efficiency of the packing.

Therefore, the cation is typically arranged in a close-packed array.

To learn more about close-packed, visit:

https://brainly.com/question/32196960

#SPJ11

Answer: They are called substances and mixtures

Explanation:

Answer:

pure substances and mixtures.

Explanation:

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule.

PLEASE MARK ME BRAINLIEST >:3