carbohydrates serve as a vital source of chemical energy to the human body. carbohydrates are broken down into smaller units of glucose, among other sugars, providing energy to various muscles and orgnas, including the brain. on average, for every 15.0g of carbohydrates consumed, the body will store 250kj of energy.convert this energy value to kilocalories (kcal).

The conjugated diene creates a mixture of two products the kinetic product and the thermodynamic product upon electrophilic addition; the ratio of these two products is governed by the reaction's circumstances.

To learn more about bromide product, refer to:

https://brainly.com/question/28997330

#SPJ4

The Correct answer is

The statement A is inconsistent with Dalton's atomic theory as it was originally stated.

What is Dalton Atomic Theory?

Dalton's atomic theory is a scientific theory that was proposed by the English chemist John Dalton in the early 19th century. The theory provides a framework for understanding the behavior and properties of matter at the atomic level, and it is considered one of the foundational theories of modern chemistry.

Dalton's atomic theory is based on a number of postulates, including:

All matter is composed of tiny, indivisible particles called atoms.

Atoms of the same element are identical in mass and properties, but they differ from atoms of other elements.

Chemical reactions involve the rearrangement of atoms, but the atoms themselves are not created or destroyed.

Dalton's atomic theory includes the postulate that atoms are indivisible and cannot be created or destroyed in chemical reactions. Thus, the formation of a compound cannot involve the destruction of atoms.

Statements B, C, and D are consistent with Dalton's atomic theory. Statement B asserts that all atoms of the same element are identical, which is one of the postulates of Dalton's theory. Statement C describes a chemical reaction in which atoms combine to form a molecule, which is also consistent with Dalton's theory. Finally, statement D describes a chemical reaction involving atoms combining in fixed, whole-number ratios, which is another postulate of Dalton's theory. However, it is worth noting that the idea of 0.5 hydrogen atoms in a molecule is not consistent with the idea of indivisible atoms, which is a fundamental principle of Dalton's atomic theory.

Learn more about Dalton Atomic Theory from given link

https://brainly.com/question/13157325

#SPJ4

The most appropriate reagent(s) for the conversion of the secondary alcohol intermediate to acetophenone are Na2Cr2O7, H2SO4, and H2O.

This is because these reagents are commonly used in the oxidation of secondary alcohols to ketones.

The reaction can be represented as follows:

Secondary alcohol intermediate + Na2Cr2O7 + H2SO4 + H2O → Acetophenone + other products

In this reaction, the secondary alcohol intermediate is oxidized to acetophenone by the reagent Na2Cr2O7 in the presence of H2SO4 and H2O.

The H2SO4 acts as an acid catalyst, while the H2O provides the necessary hydration for the reaction to occur.

Overall, the most appropriate reagent(s) for the conversion of the secondary alcohol intermediate to acetophenone are Na2Cr2O7, H2SO4, and H2O.

To know more about reagents, refer here:

https://brainly.com/question/29588114#

#SPJ11

When a mixture of 56.0 g acetylene,C₂H₂ , and 81.0 g oxygen, O₂ , is ignited, the resultant combustion reaction produces CO₂ and H₂O. There are 27.144 g  C₂H₂,  91.872 g CO₂, and 18.792 g H₂O present after the reaction is complete with the oxygen as limiting reactant.

First we should write the balance chemical equation

2C₂H₂ + 5O₂ =4CO₂ + 2H₂O

Then we can calculate the moles of the reactant

Moles acetylene = mass / mass molar

Moles acetylene = 56 g / 26 g/ moles

Moles acetylene = 2.15  moles

Moles oxygen = mass / mass molar

Moles oxygen = 81 g / 31 g/ moles

Moles oxygen =  2.61 moles

From the reaction we know that 2 moles of acetylene reacted with 5 moles of oxygen produce 4 mole of carbon dioxide an 2 moles water. in this reaction oxygen fully reacted an acetylene excess so the limiting reactant is oxygen.

Because of oxygen is fully reacted the moles acetylene that present after reaction complete will be

Moles acetylene = 2/5 x mole oxygen

Moles acetylene = 2/5 x 2.61 moles

Moles acetylene =  1.044 moles

mass acetylene =  moles x mass molar

Mass acetylene = 1.044 moles x 26 g/ moles

Mass acetylene = 27.144 g

Moles CO₂= 4/5 x mole oxygen

Moles CO₂= 4/5 x 2.61

Moles CO₂=  2.088 moles

Mass CO₂ = moles x mass molar

Mass CO₂ = 2.088 moles x 44 g/ moles

Mass CO₂ = 91.872 g

Moles H₂O = 2/5 x mole oxygen

Moles H₂O = 2/5 x 2.61 moles

Moles H₂O =  1.044 moles

Mass H₂O = moles x mass molar

Mass H₂O = 1.044 moles x 18 g/ moles

Mass H₂O = 18.792 g

Learn more about mass at https://brainly.com/question/4590268

#SPJ4

a) Electric field is, 2.26 × 10⁷ N/C b) After inserting the metallic plate electric field remains the same, E = 2.26 × 10⁷ N/C. (c) The charge density on the upper surface is 2.0 × 10⁵ C/m², lower surface of the thick plate is zero.

The electric field between the plates can be found using the formula E = σ/ε₀, where σ is the charge density on each plate and ε₀ is the permittivity of free space.

E = σ/ε₀ = (2.0 × 10⁵ C/m²) / (8.85 × 10⁻¹² F/m) ≈ 2.26 × 10⁷ N/C

When the neutral plate is inserted, the electric field inside the plate is zero because the charges in the plate rearrange themselves in response to the electric field from the other two plates, resulting in a net electric field of zero inside the plate.

E = σ/ε₀ = (2.0 × 10⁵ C/m²) / (8.85 × 10⁻¹² F/m) ≈ 2.26 × 10⁷ N/C

The charge density on the upper surface of the thick plate is also 2.0 × 10⁵ C/m². The charge density on the lower surface of the thick plate is zero, since it is in contact with the neutral plate and no charges can flow through it.

To know more about the electric field, here

brainly.com/question/15800304

#SPJ4

--The complete question is, Consider two large parallel metallic plates with uniform, opposite charge distributions. Suppose that the magnitude of the charge density on each plate is 2.0 × 10¬5 C/m². The upper plate is positive and the lower negative.

(a) What is the magnitude of the electric field in the region between the plates?

(b) You now insert a neutral large parallel metallic plate in the space between the two charged plates. Suppose that this plate is 1.0 cm thick. What is the magnitude of the electric field inside this thick plate? What is the magnitude of the electric field in the remaining space above and below this thick plate?

(c) What is the charge density on the upper surface of the thick plate? The lower surface?--

a. a red blood cell is microscopic;b.a snow ball is macroscopic;c. baking powder Particulate

a. Microscopic - A red blood cell is too small to be seen with the blind eye and must be observed under a microscope.

b. Macroscopic - A snowball is large enough to be seen with the blind eye

c. Particulate - Baking powder is a fine powder made up of microscopic particles.Macroscopic refers to anything that can be seen with the blind eye . Microscopic refers to anything that requires a microscope to be seen. Particulate refers to materials that are made up of tiny particles or molecules, such as dust, smoke, and gas.

learn more about Macroscopic Refer:brainly.com/question/26101594

#SPJ4

complete question:Classify each of the following as either macroscopic, microscopic or particulate:

a. a red blood cell.

b.a snow ball

c. baking powder.

The molar mass of a compound can be calculated from the number of atoms present in the compound and the atomic masses of elements. The molar mass of KOH is 56 g/mol.

The molar mass of a compound is the mass of one mole of the compound. One mole of a compound contains 6.02 × 10²³ molecules. This number is called Avogadro number.

The molar mass of a compound is the sum of masses of its atoms.

The atomic mass of Cl = 35.5 g/mol

Atomic mass of K = 39 g/mol

atomic mass of H = 1 g/mol and mass O = 16 g/mol.

Hence, molar mass of KOH = 1 + 39 + 16 = 56 g/mol

Mass of Be = 9 g/mol

mass of Cl = 35.5 g/mol

then molar mass of BeCl₂ = (35.5 × 2) + 9 =80 g/mol

Mass of Fe = 55.8 g/mol

molar mass of FeCl₃ = (35.5 × 3) + 55.8 = 162.3 g/mol.

Mass of B = 11 g/mol

mass of F = 19 g/mol

then, molar mass of BF₃ = 11 + (19 × 3) = 68 g/mol

In a similar way, the molar mass of all the given compounds can be determined using atomic masses of constituent elements.

Find more on molar mass:

brainly.com/question/12127540

#SPJ1

if you decrease temperature of an endothermic reaction, will the reaction favor products or reactants will shift it in the direction that is exothermic.

Exothermic reactions are chemical reactions that occur in everyday life. Exothermic reactions have certain characteristics that distinguish them from endothermic reactions.

The characteristics of an exothermic reaction are:

Learn more about exothermic at https://brainly.com/question/3971357

#SPJ4

Answer:

Hydrogen chloride (HCl) is a covalent compound, meaning it shares electrons between atoms to form a bond. However, when HCl is dissolved in water, it dissociates into H+ and Cl- ions through a process called ionization. This ionization occurs because water is a polar solvent, meaning it has a partial positive charge on one end and a partial negative charge on the other end. The positive end of water molecules attracts the negatively charged Cl- ion, while the negative end of water molecules attracts the positively charged H+ ion, causing HCl to dissociate.

The ionization of HCl in water allows it to conduct electricity because the H+ and Cl- ions are free to move and carry electrical charge. This is why HCl is considered an electrolyte when dissolved in water, despite being covalent in its pure form.

In contrast, acetic acid (CH3COOH) is also a covalent compound that can ionize in water to some extent. However, it does not fully dissociate into ions like HCl does, meaning its conductivity in water is lower than that of HCl.

The difference in conductivity between HCl and acetic acid can be explained by their respective acid strengths. HCl is a strong acid, meaning it readily donates its H+ ion in water, while acetic acid is a weak acid, meaning it only partially dissociates in water. The more ions that are present in a solution, the higher its conductivity, so the stronger acid (HCl) has higher conductivity than the weaker acid (acetic acid).

Electromagnetic radiation consists of particle called photons, each of which has a discrete amount, or quantum, of energy, however, since electromagnetic radiation also has wave properties, each particle is also characterized by a specific wavelength and frequency.

Electromagnetic radiation is a type of energy that travels through space in the form of waves. This radiation is composed of massless particles called photons, which are the fundamental unit of electromagnetic radiation.

Each photon has a discrete amount of energy, which is directly proportional to the frequency of the wave it represents. This relationship is given by the equation E = hf, where E is the distance between two consecutive peaks or troughs of the wave. The frequency of a wave is the number of cycles it completes in a unit of time.

Complete questions:

Electromagnetic radiation consists of particle called ____ each of which has a discrete amount, or quantum, of energy, however, since electromagnetic radiation also has wave properties, each particle is also characterized by a specific wavelength and ____.

Learn more about Electromagnetic radiation:

https://brainly.com/question/1408043

#SPJ4

the coefficient of O2 in the following equation is 3, 6, 3, 6

In chemistry, a coefficient is a number that is placed in front of a chemical formula when writing a chemical equation. It indicates the number of molecules or moles of a particular substance that is present in the reaction. For example, if the coefficient for oxygen is two, then two molecules of oxygen are present for every one molecule of the reactant. Coefficients are used to balance chemical equations and can often be used to determine the amount of products produced in a reaction. For example, if two molecules of hydrogen react with two molecules of oxygen to form one molecule of water, then the coefficients in the equation would be 2H2 + 2O2 --> 2H2O.

Therefore,  the coefficient of O2 in the following equation is 3, 6, 3, 6

To learn more about coefficient visit

brainly.com/question/19727079

#SPJ4

The statement that is true about Earth's water distribution is that the majority of the Earth's water is in the oceans.

Water is a transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms. It is vital for all known forms of life, even though it provides no calories or organic nutrients. Its chemical formula is H20, meaning each of its molecules contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. It is also essential for sanitation, hygiene, and the production of hydroelectric power.

This is evident from the graph, which shows that the oceans make up about 97% of Earth's water, while the other 3% is composed of freshwater lakes, rivers, and groundwater. This indicates that the vast majority of Earth's water is in the oceans, and that there is only a small amount of freshwater available for human use.

To learn more about water
https://brainly.com/question/25326161
#SPJ1

Atomic ingestion The concentration of particular metal ions in a sample, such as calcium, iron, or copper, can be found using the characterisation technique known as spectrophotometry.

Ground-state metal atoms absorb light at extremely particular wavelengths that correspond to the energy required to trigger electronic transitions in their electron orbitals in a process known as atomic absorption. Atomic absorption and emission spectroscopy is a Spectro analytical method for determining chemical elements quantitatively using free atoms in the gaseous state. The foundation of atomic absorption spectroscopy is the light absorption of free metallic ions.

By using certain electromagnetic radiation wavelengths from a light source, atomic absorption spectrometry (AAS) may identify elements in either liquid or solid samples. Different wavelengths will be absorbed by different elements, and these absorbances are evaluated in comparison to standards. By absorbing energy (light) at a certain wavelength, an electron is stimulated from the ground state to a higher energy level. In atomic absorption spectroscopy, the type of atom (which element it is) and the energy levels the electrons are travelling to determine the wavelength of absorbed light.

To know more about Atomic Absorption visit:

https://brainly.com/question/28007345

#SPJ4

Lithium carbonate is a solid compound that does not dissolve in water. Therefore, the final volume of the solution will not be affected by the dilution of lithium carbonate with water.

A solid compound is a type of chemical compound that consists of two or more elements combined together in a solid state. Solid compounds are the most abundant type of compounds in nature, and are typically composed of two or more elements held together by strong chemical bonds. Examples of solid compounds include table salt (NaCl), sugar (C12H22O11), and stainless steel (Fe-Cr-Ni). Solid compounds are generally very stable, and can be found in both organic and inorganic forms. They can also be formed from other compounds, such as when two liquids mix together. Solid compounds are often used in industrial settings, such as in the production of pharmaceuticals, dyes, and other materials.

To learn more about solid compound

https://brainly.com/question/1024087

#SPJ1

The process of having a Na+ ion be caged by water molecules as a result of the attractive ion-dipole interactions is B.)exothermic.

The process of having Na+ be caged by water molecules as a result of attractive ion-dipole interactions is exothermic meaning it releases heat. This is because the formation of ion-dipole bonds between Na+ ion and water molecules is energetically favorable, resulting in release of energy in the form of heat.

In thermodynamics, exothermic process is a thermodynamic process that releases energy from the system to surroundings, in the form of heat, but sometimes in a form of light, electricity or sound.

To know more about exothermic, refer

https://brainly.com/question/2924714

#SPJ1

The “rule” or reasoning that I used to compare the cubes is the equation between density, mass, and volume.

Density can be defined as mass per unit volume.  It is usually expressed in kilograms per cubic meter or grams per cubic centimeter. The formula for density is:

                                       Density = Mass ÷ Volume

where Mass is the total amount of matter in an object, and Volume is the amount of space that the object takes up.

A. The larger cube has more mass than the smaller cube. Х

B. The larger cube has less mass than the smaller cube. Х

C.  The larger cube melts at a higher temperature than the smaller cube. Х

D. The larger cube melts at a lower temperature than the smaller cube. X

E. The density of the larger cube is greater than the smaller cube. X

F. The density of the larger cube is less than the smaller cube. X

G. The larger cube is more likely to float in water than the smaller cube.

H. The larger cube is more likely to sink in water than the smaller cube.

I. The larger cube is made up of larger atoms than the smaller cube.

J. The larger cube is made up of smaller atoms than the smaller cube.

Hence, the true statements are marked above.

For more details regarding the density, visit:

https://brainly.com/question/13434141

#SPJ9

Answer:

Solubility in water and Conductivity

Explanation:

Ionic compounds are important for the heart to beat because they are soluble in water and conduct electricity. This allows the electrical impulses that regulate heartbeats to easily travel through the heart cells, which are mostly composed of water. Solubility in water allows the ionic substances to be easily dispersed in the heart cells, while conductivity allows the electrical impulses to move quickly and efficiently through the cells. The crystalline structure and melting point of ionic compounds are not as relevant for this function.

In nature, the linking of two monosaccharides through a glycosidic bond involves the formation of an intermediate hemiacetal species. The activated hemiacetal species in this case is UDP, and it is used to form the glycosidic bond in cellulose.

The first step in the reaction is the activation of the UDP molecule by phosphorylation, which leads to the formation of UDP-glucose. The UDP-glucose then reacts with the hydroxyl group on the C4 carbon of another glucose molecule to form a glycosidic bond. This reaction is catalyzed by the enzyme cellulose synthase, which binds the glucose molecules and orients them in a way that facilitates the formation of the glycosidic bond. The result is the formation of a long chain of glucose molecules joined by glycosidic bonds, which constitutes the cellulose polymer.

Find out more about cellulose polymer.

brainly.com/question/29825002

#SPJ4

The limiting reagent is AgNO₃

The theoretical yield of silver chloride is 9.75 g AgCl

The actual yield of silver chloride is 7.60 g AgCl

The limiting reagent in the reaction is determined from the mole ratio of the reaction as given in the equation of the reaction.

Equation of reaction: NaCI + AgNO₃ ---> AgCl + NaNO₃

Mole ratio of the reactants is 1 : 1

Moles of NaCl reacting = 6.3/58.5

Moles of NaCl reacting = 0.108 moles

Moles of  AgNO₃ reacting = 0.170 * 0.40

Moles of  AgNO₃ reacting = 0.68 moles

The limiting reagent is  AgNO₃

The theoretical yield of silver chloride =

0.068 moles * (143.32 g AgCl/mole)

The theoretical yield of silver chloride = 9.75 g AgCl

The actual yield of silver chloride = 9.75 g AgCl x (78%)

The actual yield of silver chloride = 7.60 g AgCl

Learn more about limiting reagents at: https://brainly.com/question/23661051

#SPJ1

The expression which is true regarding the equilibrium of the reaction is

[CO] = [H₂] = [CH₃OH]. Hence, option d is correct.

A reaction is said to at equilibrium when the rate of forward reaction and backward reaction are the same. The number of reacting species in the reactant side must be equal to the number of reacting species in the product side.

Here, the reaction of carbon monoxide and hydrogen gas to give methanol is given below:

[tex]\rm CO + 2H_{2} \rightarrow CH_{3}OH[/tex]

At, equilibrium, the concentration of all the reactants and products will be the same.

Therefore,

[CO] = [H₂] = [CH₃OH]

Hence, option d is correct.

Find more on equilibrium:

https://brainly.com/question/30693676

#SPJ1

It is true that substance A has hydrogen bonds and that substance A has a higher boiling point than substance B. Moreover, substance A has a larger heat of vaporization than substance B.

In particular, the hydrogen-bonding subgroup of dipole-dipole interactions, which occurs when a hydrogen is in close proximity to (connected to) a strongly electronegative element strongest intermolecular force (namely oxygen, nitrogen, or fluorine).

As a general rule, more energy is needed to overcome intermolecular forces of attraction that are greater. Ionic and polar covalent molecules thus have higher Compared to covalent compounds, these substances have greater melting and boiling temperatures as well as enthalpies of fusion and vaporization.

To know more about hydrogen bonds visit:-

https://brainly.com/question/17659933

#SPJ1

The correct answer is B.Bromodimethylbenzene B cannot undergo nucleophilic aromatic substitution

By treatment with sodium amide in liquid ammonia because the two bromine atoms attached to the benzene ring are meta-directing, which would prevent the reaction from occurring.Bromodimethylbenzene is an organic compound made up of a benzene ring with two bromine atoms and two methyl groups attached. It is a colorless liquid at room temperature and has a slightly sweet odor. It is used as an intermediate in the production of a variety of organic compounds, such as dyes and pharmaceuticals. It can also be used as a solvent for various compounds. Bromodimethylbenzene is a toxic substance and should be handled with caution.

learn more about methyl groups Refer:brainly.com/question/13408577

#SPJ4

The correct graph that represents the magnitude of the electric field as a function of the distance from the center of a solid charged conducting sphere of radius r is a graph that shows a linear relationship between the electric field (E) and the distance (r) from the center of the sphere.

The electric field is proportional to the inverse square of the distance from the center of the sphere, so the graph should show a decrease in magnitude as the distance from the center of the sphere increases.

The slope of the graph should also be steeper closer to the center of the sphere and gradually become less steep as the distance from the center increases. Therefore, the correct graph is a straight line that starts with a relatively steep slope and gradually becomes less steep as the distance from the center increases.

For more questions like Sphere of radius visit the link below:

https://brainly.com/question/27857644

#SPJ4

The predominate inter-particle bond for each material is:

The cohesive forces that bind particles together in a solid material are determined by the nature of the atoms, ions, or molecules that make up the material. Some materials are composed of atoms that are held together by strong covalent bonds, whereas others are made up of ions that are attracted to each other by electrostatic forces.

Metallic materials have delocalized electrons that form a "sea" of electrons which hold the metal ions together. London Keesom forces are present in all materials, and arise from instantaneous dipoles that are formed in molecules. Hydrogen bonds are formed between molecules that have a hydrogen atom bonded to an electronegative atom.

By considering the nature of the constituent particles, it is possible to identify the predominant inter-particle bond that holds a solid material together.

This question should be provided with the options, which are: ebye, ionic, metallic, hydrogen, london keesom, covalent.

Learn more about bonding types brainly.com/question/2026679

#SPJ4

Boron has the largest first ionization energy. Option C is correct.

The first ionization energy generally increases from left to right across a period of the periodic table, and decreases from top to bottom down a group. Therefore, in the given options, the element with the largest first ionization energy would be boron (B), as it is the closest to the right-hand side of the period and has a relatively small atomic radius compared to the other options.

The order of the elements from smallest to largest first ionization energy would be:

B < O < Mg < Ba < Te

Note that there may be some exceptions to this general trend due to other factors, such as electron configuration and shielding effects, but this is the overall trend.

To know more about  ionization energy here

https://brainly.com/question/28385102

#SPJ4

--The given question is incorrect, the correct question is

"Based on their positions in the periodic table, predict which has the largest first ionization energy: Options A) Mg B) Ba C) B D) O E) Te."--

To calculate the number of moles of AgNO₃ used in an experiment, we need to know the mass of AgNO₃ weighed out and the molar mass of AgNO₃.

By adding the atomic masses of the component elements, it is possible to get the molar mass of AgNO₃: AgNO₃ = Ag + N + 3O.

AgNO₃'s molar mass = as (1 × Ag atomic mass) + (1 × N atomic mass) + (3 × atomic mass of O)

AgNO₃'s molar mass = 1 × 107.87 g/mol + 1 × 14.01 g/mol + 3 × 16.00 g/mol.

∴ AgNO₃'s molar mass = 169.87 g/mol.

By dividing the mass of weighed-out AgNO₃ by its molar mass, we can now determine how many moles of AgNO₃ were utilized in the experiment:

AgNO₃'s mass and molar mass are used to calculate its moles.

For example: if 2.5 grams of AgNO₃ were weighed out at the beginning of the experiment, the calculation would be:

moles of AgNO₃ = 2.5 g ÷ 169.87 g/mol

moles of AgNO₃ = 0.0147 mol

∴, 0.0147 moles of AgNO₃ were used in the experiment.

Learn more about how to calculate moles for a compound here:

https://brainly.com/question/21911991

#SPJ4

[NH3] will increase and [N2] and [H2] will decrease in concentration when the mixture comes to equilibrium.

What is concentration?

In chemistry, concentration is a measure of the amount of a substance in a given volume of a solution or mixture. It is usually expressed in terms of the number of moles of the substance per liters of solution or mixture.

We have an equilibrium constant of Ke = 1.2 at 375°C and the starting concentrations are [H2]0 = 0.76 M, [N2]0 = 0.60 M, and [NH3]0 = 0.48 M.

Concentration at equilibrium is,

N2(g) + 3H2(g) — 2 NH3 (g)

We shall determine whether the reaction will move forward or backward by calculating the reaction Q. If Q < K, the reaction will proceed forward so the concentration of reactants will decrease and that of products will increase. The opposite will happen if Q> K (reaction proceeds backwards).

[tex]Q= \frac{NH_{3} ^{2} }{[N_{2} ] [H_{2}]^{3} } = \frac{0.48^{2} }{(0.60) (0.76)^{3} } = 0.87[/tex]

Since Q < [tex]K_{cr}[/tex], the reaction will proceed forward. Therefore, the concentration of reactants N2 and H2 will decrease while the concentration of the product NH3 will increase.

Therefore, [NH3] will increase and [N2] and [H2] will decrease.

To learn more about concentration from the link

https://brainly.com/question/10725862

#SPJ1

46.27 cubic feet  soil are needed to fill the flower box

Given Data

Length of Box = 5.40 feet

Width of Box =  9.52 feet

Depth of Box = 0.9 feet

Let us find the volume of the box

The volume can be found be using the expression below

Volume = L*W*D

Substitute the given data into the expression we have

Volume = 5.40*9.52*0.9

Volume = 46.27 cubic feet

Learn more about Volume here:

https://brainly.com/question/21092361

#SPJ1

If a glass of water contains( 6.022×10²⁴) hydrogen atoms, how many moles of H[tex]_2[/tex]O are present, 10 moles are there.

Water has the chemical formula H[tex]_2[/tex]O and is an inorganic substance. It is a clear, tasteless, odorless, and almost colorless chemical substance that is the primary ingredient of the Earth's hydrosphere as well as the fluids of all recognized living species.

Despite not supplying food, energy, or organic micronutrients, it is essential for all known life forms. Its chemical equation, H[tex]_2[/tex]O, reveals that every single its molecules is made up of one hydrogen atom and two oxygen atoms that are linked together by covalent bonds.

mole = given number of atom/ Avogadro number

       =   6.022×10²⁴   /   6.022×10²³  

      = 10 moles

Therefore, 10 moles are there.

To learn more about water, here:

https://brainly.com/question/16630851

#SPJ9

The atomic mass of the silver if silver has 2 naturally occurring isotopes with masses and natural abundance is  Ag-107 106.90509 amu 51.84% Ag-109 108.90476 amu 48.46% is  108.19 amu.

The atomic mass of the silver , Ag - 107 =  106.90509 amu

The natural abundance = 51.84 % = 0.5184

The atomic mass of the silver , Ag - 109 = 108.90476 amu

The natural abundance =  48.46 % = 0.4846

The atomic mass = mass of isotopes × natural abundance + mass of isotopes × natural abundance

The atomic mass =  0.5184 × 106.90509 + 0.4846 × 108.90476

The atomic mass =  108.19 amu

To learn more about atomic mass here

https://brainly.com/question/14664137

#SPJ4