Draw the structure of threonine as it would appear at pH 1.0. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading.

The property of acids which would cause acid rain to damage buildings over time is:

Acids react with limestone.

The correct answer choice is option c.

This simply means that acids has this property which corrodes the surface they come in contact with especially stones.

However, this can be done by coating the surface of metals, or carbonate by coating it with other metals. By so doing, this can prevent acid rain damage to it.

That being said, by default, concentrated acids are highly corrosive.

Coating surfaces of metals can prevent acid rain damage to it

This refers to a substance which when dissolved in water, it produces hydrogen ion as the only positive ion in the solution.

So therefore, the property of acids which would cause acid rain to damage buildings over time is acids react with limestone.

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In quantum mechanics, the angular momentum quantum number "l" defines the shape of the atomic orbital. The l value is an integer ranging from 0 to (n-1) where n is the principal quantum number.

Therefore, for an electron in the L(n=2) shell of an atom, the possible values of the angular momentum quantum number l would range from 0 to 1, since n=2.

This is because the L shell is the second shell, which has n=2. Therefore, it can have subshells with l=0 and l=1, also known as the s and p subshells respectively.

The angular momentum quantum number also has an effect on the energy of the electron, with higher l values having higher energy.

Thus, the possible values of the angular momentum quantum number l for an electron in the L(n=2) shell of an atom are l=0 and l=1.

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The major negative effect of burning oil and coal, which are fossil fuels used in combustion engines, is the release of greenhouse gases, particularly carbon dioxide (CO₂), into the atmosphere.

When fossil fuels are burned, carbon that has been stored underground for millions of years is released as CO₂. The increased concentration of CO₂ in the atmosphere acts as a blanket, trapping heat and causing the Earth's average temperature to rise. This contributes to the phenomenon known as climate change or global warming.

It also causes ocean acidification, which has negative impacts on marine life, such as coral bleaching and reduced shell formation in shellfish.

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Answer:

C - 2 e- → C

Explanation:

2 NaHCO3 → 2 Na + H2O + -1 CO + 3 CO2

2 NaI + 2 e- → 2 Na0

C - 2e - C

It lowers the concentration of phosphate ions, shifting the balance to the left.

The maximum number of a chemical that will disintegrate in such a solvent at a given temperature is referred to as its solubility. Varying compounds have very high solubility, which is a characteristic of a particular solute-solvent pair.

The quantity of solute in one liters of a saturated solution, or solubility, is measured in grams. For instance, their solubility in water at 25 oC might be displayed as 12 g/L. The amount of solute per milliliter of saturated solution is measured by its molar solubility. As an illustration, positive and significant at 1 mol/L at 25 oC.

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84.2 ml of 0.120 m HCL are needed to completely neutralize 50.0 ml of 0.101 m Ba(OH)2 solution.

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The given structure is of formaldehyde an organic compound and it is acidic in nature.

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WHAT IS AN IONIC BOND

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kossel explained that inert gases r inert due to the electronic configuration which contains 8 electrons in their outermost shell

And other elements loss and gain electrons to form ions and to have electronic configuration same as Noble gas and to get stable

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Answer:

An ionic bond is a chemical bond that results from electrostatic attraction between positive and negative ions.

Explanation:

It occurs between a metal and a non-metal, and the electronegativity will always be greater than 1.7 (which are both expedient ways of identifying this type of reaction). I hope this helps!

Given what we know, we can give the definition of these 20 words.

Density: magnitude that shows the correlation between mass and volume of a solution.

Hollow: having an empty space or concavity.

Solid: state of matter in which its particles are together and organized with great cohesion among themselves.

Conserve: to keep or protect something from some kind of damage or change.

Conduction: transmission of a charge through a body.

Convention: an established technique, form, or practice.

Current: a flow of electrically charged particles that travels through space.

Emit: release or discharge something such as a type of gas, liquid, light or sound.

Expand: increase the volume in a given space by some change in temperature.

Radiation: transmission of energy from a source through space.

Vigorously: done energetically or actively.

Porous: body that allows some fluid to pass through it.

Evaporation: it is a physical process in which it goes from the liquid state to the gaseous state. It can occur at any temperature

Isopropanol: colorless, flammable alcohol that can be mixed with water.

Condense: state of matter in which particles are packed closely together.

Temperature: thermal level of a body or the atmosphere.

Kinetic energy: energy possessed by a body by its motion.

Thermal energy: internal energy enclosed in a thermodynamic system in equilibrium that is proportional to its absolute temperature.

Condensation: is the change of matter from a gaseous state to a liquid state.

Mass: magnitude with which we measure the amount of matter that expresses a body.

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Answer: D. 7.71 x 10^24

Explanation:

12.8 moles CO2 (6.02 * 10^23 molecules / 1 mol) = 7.7 * 10^24 molecules :)

Answer:

Below

Explanation:

1 meter = 100 cm

Volume =   100 cm * 100 cm * 2 cm = 20 000 cm^3  = 20 000 ml

mass = volume * density

         = 20 000 ml  *  1.42 g/ ml = 28400 g   ( or 28.4 kg)

Answer:

2P + 3Cl2 => 2PCl3

Explanation:

Answer:

It can be expressed in several ways: molarity (moles of solute per liter of solution); mole fraction, the ratio of the number of moles of solute to the total number of moles of substances present; mass percentage, the ratio of the mass of the solute to the mass of the solution times 100; parts per thousand (ppt), grams ...

Explanation:

It can be expressed in several ways: molarity (moles of solute per liter of solution); mole fraction, the ratio of the number of moles of solute to the total number of moles of substances present; mass percentage, the ratio of the mass of the solute to the mass of the solution times 100; parts per thousand (ppt), grams ...

The group 1 metals placed in the periodic table is called as the Alkali metals. because of their oxides and the hydroxide form alkaline solution with water.

The group 1 elements called as the alkali metal as their oxides and their hydroxides form the alkaline solution with the water. The alkali metals are given as :

These elements are the metals except the hydrogen . the hydrogen element is the non metal nut place in the group 1. the hydrogen is the exception. the alkali metals are very reactive.

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The periodic table's group 1 metals are referred to as alkali metals. due to the formation of an alkaline solution with water by their oxides and hydroxides.

When combined with water, the group 1 elements known as the alkali metals' oxides and hydroxides create an alkaline solution. The following are the alkali metals:

Hydrogen - H

Rubidium - Rb

Lithium - Li

Sodium - Na

Potassium - K

Francium - Fr

Cesium - Cs

With the exception of hydrogen, these elements are all metals. The non-metal  spot in group one is occupied by the hydrogen element. The exception is hydrogen. The reactiveness of alkali metals is high. it is due to only 1 electron in the outer most energy shell which is not under high attraction from the nucleus due to shielding effect of inner electrons.

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Answer:

Table salt is made up of two elements

Sodium and Chlorine

Explanation:

\(Na + Cl_2 - > NaCl\)

How Rock salt is gotten

: As the brine boils in the first effect, water evaporates producing further steam and causing salt crystals to grow. As the brine boils and the water starts to evaporate, a thick salt slurry of brine and salt crystals is formed.

Explanation:

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Hope it helps

Answer:

The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation. The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays

Explanation:

Answer:

Scale

Explanation:

The given statement "the strength of ionic bonds is inversely proportional to the dielectric constant of the solvent" is TRUE.

Ionic bonds are one of the types of chemical bonds. Ionic bonding occurs when one atom gains or loses one or more electrons to create a positively charged cation and a negatively charged anion. The force of attraction that holds the oppositely charged ions together is known as the ionic bond.

The dielectric constant of a substance is a measure of its ability to polarize in an electric field. The dielectric constant of a solvent is the amount to which the solvent will lower the attraction between charged particles. The ability of a solvent to decrease the attraction between ions is referred to as its dielectric constant.

The strength of ionic bonds is inversely proportional to the dielectric constant of the solvent. This means that the strength of an ionic bond is inversely proportional to the dielectric constant of the solvent in which the bond is dissolved. This implies that the higher the dielectric constant of the solvent, the weaker the ionic bond between two ions.

Hence, the given statement is true.

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Answer:

A

Explanation:

Because I am right

Answer:

the atomic number is 11

Explanation:

Answer:

The oxidation number of chlorine can be -1, 0, +1, +3, +4, +5, or +7, depending on the substance containing the chlorine. The most common oxidation numbers are -1 (as in HCl and NaCl ) and 0 (as in Cl2 )

Answer:

Depending on the chemical containing chlorine, the oxidation number can be -1, 0, +1, +3, +4, +5, or +7. The oxidation values -1 (as in HCl and NaCl) and 0 are the most prevalent (as in Cl2 )

Explanation:

The element with the completely filled p-subshell is Ar (Option C)

This is the arrangement of elecartons in the atomic orbitals of an element. The modern electronic configuration makes use of the s, p, d, f orbital notation where

To obtain the correct answer, we shall write the electronic configuration of each element given in the question. This is illustrated below

From the above illustrations, we can see that only Ar has completely filled p-subshell.

Thus, Ar (Option C ) is the correct answer to the question

Complete question

See attached photo

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How many liters of oxygen gas were used up?

If 185 g of wax \(C_{22}H_{44}\) burns, 13.73 L of oxygen gas is used.

An ideal gas equation is:

The macroscopic characteristics of ideal gases are related to the ideal gas law (PV = nRT). Gas is considered to be perfect if its particles (a) do not interact with one another and (b) occupy no space (have no volume).

First, determine the gas's moles using the gas law.

PV = nRT, where n is the number of moles and R is the gas constant. Next, divide.

To obtain molar mass, multiply the given mass by the number of moles.

Data provided:

P= 101kpa =0.996792 atm

V= ?

R= 0.082057338 L atm K\(^{1} mol^{-1}\)

T=25 +273 =298 K

Moles =?

Moles = mass/molar mass = 185g/308.6

Moles =0.56

Putting value in the given equation:

PV/RT =n

0.56 = \(\frac{0.996792 atm XV}{0.082057338 L atm K^{1} mol^{-1} X 298}\)

13.73 L =V

13.73 L of oxygen gas was used up if 185 g of \(C_{22}H_{44}\) wax burns.

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Answer:

Explanation:

It's water vapor. There is enough heat present to get the water to boil but not enough to break it into its chemical components (oxygen and hydrogen), so the answer is D.

The example that is nonpolar is d. a molecule with no partial charges.

When the charges of the molecule are symmetrical and there are no partial charges, it indicates that the molecule is nonpolar.

Polar molecules have partial positive and negative charges on either end of the molecule.

This occurs as a result of the polarity of the molecule, which is created by the difference in electronegativity between the two atoms forming the bond.

The charge distribution on the molecule is unbalanced due to this polarity, with the electron density more concentrated around the more electronegative atom.

The measurement of the polarity of a molecule is based on the difference in electronegativity between the two atoms forming the bond.

The polarity of a molecule can be determined using various methods, including the dipole moment method, which measures the magnitude of the dipole moment of the molecule.

The dipole moment measures the charge distribution in the molecule and is measured in Debye (D) units, where 1 D = 3.336 × 10-30 Cm.

In conclusion, a molecule with no partial charges is nonpolar.

The other options such as a negative ion, a neutral ion, and a positive ion are polar molecules as they have partial charges on either end of the molecule.

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