In the ___________, two molecules of an aldehyde or ketone react with each other in the presence of a base to form a Beta-hydroxy carbonyl compound

The mucosa or mucous membrane layer which is the innermost layer of the alimentary canal wall, adsorbs nutrients .

The wall of alimentary canal possesses four layers - serosa , muscularis , submucosa , and mucosa . Serosa is the outermost layer and is made up of thin mesothelium and connective tissue . Muscularis is formed by smooth muscles usually arranged into an inner circular and an outer longitudinal layer . Sub-mucosa layer is formed of loose connection tissues congaing nerves , blood and lymph vessels .

To learn more about alimentary canal wall please click here ,

https://brainly.com/question/9120234

#SPJ4

When 2.00 moles of N2 react with sufficient H2, the balanced chemical equation for the synthesis of ammonia (NH3) is N2(g) + 3H2(g) → 2NH3(g).

According to the stoichiometry of the reaction, 1 mole of N2 reacts with 3 moles of H2 to produce 2 moles of NH3. Since you have 2.00 moles of N2 reacting, you can use the mole ratio to determine the moles of NH3 produced:
(2 moles NH3 / 1 mole N2) × 2.00 moles N2 = 4.00 moles NH3,

So, when 2.00 moles of N2 react with sufficient H2, 4.00 moles of NH3 will be produced.

38.5 g is the mass of nitrogen.

generated moles of ammonia Chemical formula

N₂ + 3H₂ → 2NH₃

Number of nitrogen moles: Mass x molar mass equals number of moles 38.5 g/28 g/mol is the weight in moles.

1.375 mol is the number of moles.

The moles of ammonia and nitrogen from the balance chemical equation will now be compared.

 N₂ : NH₃ 1 : 2

1.375 : 2×1.375 = 2.75 mole..Thus, from 38.5 g of nitrogen, 2.75 moles of ammonia are created.

Learn more about synthesis of ammonia (NH3) here

https://brainly.com/question/15653755

#SPJ11

The period that an element is in tells the number of electrons shells normally possessed by an atom.

An electron is a negatively charged subatomic particle that can be either sure to an atom or loose. An electron that is sure to an atom is one of the three number one types of debris in the atom the opposite  are protons and neutrons.

Electrons are the smallest of the debris that make up an atom, and they bring a bad price. The variety of protons and electrons is equal in a impartial atom. The hydrogen atom, as an instance, has just one electron and one proton.

Atoms are constructed of two sorts of elementary particles: electrons and quarks. Electrons occupy a space that surrounds an atom's nucleus. each electron has an electrical charge of -1. Quarks make up protons and neutrons, which, in turn, make up an atom's nucleus.

Learn more about electrons  here:-https://brainly.com/question/860094

#SPJ4

Answer:

C- transforemed or changed

Explanation:

matter can be changed by application of heat or cold

For the subsequent reaction, 0.295 moles of bromine and 0.420 moles of chlorine gas are combined. The limiting reagent's formula is Br2. The most hydrochloric acid that may be produced is 67.56g.

Chemical element bromine has the symbol Br and atomic number 35. At room temperature, it is a flammable red-brown liquid that easily evaporates to form a similar-colored vapour for bromine. It is the third-lightest element in group 17 of the periodic table (halogens). An aqueous solution of hydrogen chloride is hydrochloric acid, often called muriatic acid. It is a colourless solution with an overpowering odour. Strong acid is how it is categorized is known as  hydrochloric acid.

A limiting reagent is a chemical that is only minimally present.

Br2 = 0.295/1 =0.295\sCl2 = 0.420/1 = 0.420

Br2 is therefore the limiting agent.

BrCl's mass is equal to its molecular mass multiplied by 1.

BrCl mass = 0.59*114.5.

BrCl has a mass of 67.56g.

Learn more about bromine here

https://brainly.com/question/17538491

#SPJ4

Answer:

3. Bacteria

Explanation:

If you don't trust me, search it up!

Answer:

F=ma

Explanation:

F=m×a

according to that F÷m=a and also F ÷a=m

A compound is formed while atoms of or extra physical bond collectively chemically changes. For example, desk salt is a chemical compound that effects while atoms of Sodium (Na) bond with atoms of chlorine (Cl).

The residences of an detail do alternate while that detail combines with different factors to shape compounds. There are handiest 118 recognized factors which integrate to make the entirety withinside the universe. If you consider that, you will see that the residences of the detail have to alternate relying upon the compound it's far in.

For example, water is a compound crafted from the factors hydrogen and oxygen. Sugar is likewise a chemical compound which incorporates hydrogen and oxygen, in addition to carbon. The residences of the hydrogen atoms are one of a kind while they're a part of a sugar molecule than while they're a part of a water molecule.

Read more about compound:

https://brainly.com/question/26487468

#SPJ4

If one have 10 grams of a substance that decays with a half-life of 14 days, then after 70 days it will be 0.313 g, which is in second option, as the half-life of a substance is the time ,one substance takes for half of the initial amount of the substance to decay. In this case, the half-life is 14 days. So, second option is correct.

Here, given is, number of half-lives = 70 days / 14 days per half-life = 5 half-lives

So, the formula of remaining amount = Initial amount × \((1/2)^(^n^u^m^b^e^r^ o^f ^h^a^l^f^ l^i^v^e^s^)\)

Initial amount (here) = 10 grams

Then, Remaining amount = 10 grams × \((1/2)^5\)

Remaining amount = 10 grams × \((1/2)^5\)

Remaining amount = 10 grams × (1/32)

Remaining amount = 0.313 grams

Learn more about the half life here

https://brainly.com/question/12712810

#SPJ1

Answer:

To determine the grams of silver phosphate produced and excess reagent, we need to use stoichiometry and identify the limiting reagent.

First, we need to find the number of moles of each reactant using their molar masses:

Number of moles of AgNO3 = 200 g / 169.87 g/mol = 1.177 mol

Number of moles of Na3PO4 = 200 g / 380.13 g/mol = 0.526 mol

Next, we need to use the balanced chemical equation to determine the theoretical yield of silver phosphate:

From the balanced equation, 3 moles of AgNO3 react with 1 mole of Na3PO4 to produce 1 mole of Ag3PO4. Therefore, the number of moles of Ag3PO4 produced is:

1.177 mol AgNO3 × (1 mol Ag3PO4 / 3 mol AgNO3) = 0.392 mol Ag3PO4

To convert moles of Ag3PO4 to grams, we use its molar mass:

0.392 mol Ag3PO4 × 418.58 g/mol = 164.0 g Ag3PO4

Therefore, 164.0 grams of Ag3PO4 are produced.

To determine the excess reagent, we need to identify the limiting reagent. The reactant that produces less product is the limiting reagent.

From the stoichiometry calculation above, we can see that 1.177 moles of AgNO3 are required to react with 0.526 moles of Na3PO4, so Na3PO4 is the limiting reagent. Therefore, we need to determine how much of the excess AgNO3 remains after the reaction is complete.

The amount of AgNO3 that reacted is:

0.526 mol Na3PO4 × (3 mol AgNO3 / 1 mol Na3PO4) × (169.87 g/mol AgNO3) = 85.3 g AgNO3

The amount of excess AgNO3 is:

200 g AgNO3 - 85.3 g AgNO3 = 114.7 g AgNO3

Therefore, 114.7 grams of AgNO3 is left over as excess reagent.

The energy needed to change the temperature of 1 g of water by 1 °C is 0.415 J. Then the energy needed to change the temperature of 50 g of water by 15 °C is 311.25 J.

The specific heat capacity of a substance is the heat energy needed to increase the temperature by 1 °C per one gram of the substance. The specific heat of water is 0.415 J/g °C.

Hence, the energy needed to change the temperature of 1 g of water by 1 °C is 0.415 J. The energy needed to change the temperature can be found using the calorimetric equation as follows:

Q = m c ΔT

Here m = 50g

c = 0.415 J/g °C.

ΔT = 15 °C.

then q= 50 g ×15 °C ×0.415 J/g °C

          = 311.25 J.

Therefore, 311.2 J of energy needed to change the temperature of 50 g of water by 15 °C.

Find more on specific heat:

https://brainly.com/question/11297584

#SPJ1

Steel is less malleable than the elements that make it.

Pure iron is exceedingly malleable and soft. Depending on the amount of carbon present, steel can be soft or hard. Although not as soft as pure iron, very low carbon steels are fairly soft.

Because they are essentially made of metal ions that are packed closely together and encased in an electron sea—the term "sea" is figurative—all metals should be malleable. This is why metal are good electrical conductors. The metal atoms may always be shown to be on planes that will allow them to slide over one another while they are submerged in this sea. The ability of a metal to retain and transport heat is also influenced by the sea, which offers additional degrees of freedom not found in a lattice.

To know more about conductors click below:

https://brainly.com/question/18084972#

#SPJ4

Answer:

313.8264 Amu

Explanation:

You can use a formula to find the weighted average of isotopes of an element:

[(abundance)(weight)+(abundance)(weight)+(abundance)(weight)]/100

In this case:

[(37.26)(312)+(2.79)(313)+(59.95)(315)]/100

which gives 313.8264

When the hydrate of CuSO4·5H2O (copper sulfate pentahydrate) is heated, it undergoes a chemical reaction that results in the loss of water molecules, leaving behind anhydrous CuSO4 (copper sulfate). This process is known as dehydration. The reaction proceeds in the direction of the products as the anhydrous CuSO4 is the thermodynamically stable form of copper sulfate at high temperatures.

Copper sulfate pentahydrate (CuSO4·5H2O) is a crystalline compound that contains five water molecules (H2O) per formula unit. When this compound is heated, the water molecules are lost, and the remaining compound is anhydrous CuSO4. This process is known as dehydration, and it is an example of a chemical reaction.

The chemical equation for the dehydration of copper sulfate pentahydrate can be represented as follows:

CuSO4·5H2O(s) → CuSO4(s) + 5H2O(g)

In this equation, the arrow points in the direction of the products, indicating that the reaction proceeds in that direction. This means that, upon heating, the hydrate of copper sulfate loses its water molecules, and the anhydrous form of the compound is formed.

The driving force for this reaction is the thermodynamic stability of anhydrous CuSO4 at high temperatures. Anhydrous CuSO4 is more stable than copper sulfate pentahydrate at temperatures above 100°C, and as such, the reaction proceeds in the direction of the products, leading to the formation of anhydrous CuSO4.

In conclusion, the dehydration of copper sulfate pentahydrate results in the formation of anhydrous CuSO4, and the reaction proceeds in the direction of the products due to the thermodynamic stability of anhydrous CuSO4 at high temperatures.

To learn more about crystalline compound click here : brainly.com/question/30458843

#SPJ11

It holds true. Orbitals are still a molecular orbitals cloud of charge density, which means that the protons are dispersed across a wide area as opposed to someone being centralized in a single place.

Each subshell's electrons are organized into orbitals, which are areas of the atom's interior where a certain electron is still most likely to be. There are two electrons in each orbital, and their spins vary. An electron in a certain subshell can be located in an atom's orbital, an area of space.

Any atom typically contains a large number of orbitals for each n value and these orbitals are collectively referred to as electron shells.

To know more about Orbitals visit :

https://brainly.com/question/18914648

#SPJ4

Answer:

4

Explanation:

Analytical methods for the determination of trichloroethylene (TCE) and its major metabolites include gas chromatography (GC), liquid chromatography (LC), solid-phase microextraction (SPME), immunoassay techniques, and mass spectrometry (MS).

These methods offer sensitivity, selectivity, and can be applied to various sample matrices. Sample preparation techniques may be used to enhance analysis.

Trichloroethylene (TCE) and its major metabolites, chloral hydrate, trichloroacetic acid, and dichloroacetic acid, can be determined using various analytical methods. Here is a review of some commonly used techniques for their determination:

Gas Chromatography (GC):

GC is widely employed for the analysis of volatile organic compounds like TCE and its metabolites. The sample is vaporized, and the gaseous analytes are separated by chromatography on a capillary column. Detection can be achieved using a flame ionization detector (FID) or mass spectrometry (MS).

Liquid Chromatography (LC):

High-performance liquid chromatography (HPLC) has been utilized for the determination of TCE and its metabolites. Different LC modes, such as reverse phase or ion-exchange chromatography, can be employed depending on the properties of the analytes. UV detection or MS can be used for quantification.

Solid-Phase Microextraction (SPME):

SPME is a sampling technique that combines extraction and sample introduction into a GC or HPLC system. It involves the use of a fiber coated with an adsorbent material to extract analytes from the sample matrix selectively. SPME has been employed for the determination of TCE and its metabolites in water, air, and biological samples.

Immunoassay Techniques:

Enzyme-linked immunosorbent assays (ELISA) and other immunoassay-based methods have been developed for the rapid screening of TCE and its metabolites. These methods rely on specific antibody-antigen interactions for detection and can provide quick results, although they may have limitations in terms of sensitivity and selectivity.

Mass Spectrometry (MS):

MS techniques, such as gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS), offer high sensitivity and selectivity for the determination of TCE and its metabolites. They provide structural information and can be used for both qualitative and quantitative analysis.

It is important to note that the choice of analytical method depends on factors such as the sample matrix, required sensitivity, specificity, and available instrumentation. Additionally, sample preparation techniques like extraction or derivatization may be employed to enhance the analyte recovery or improve detection limits.

learn more about trichloroethylene here

https://brainly.com/question/8174936

#SPJ11

Pure science deals with the process of discovering new scientific facts through carefully controlled scientific experiments while applied science deals with the use of scientific knowledge to solve problems in society.  Efforts to make quinine cheaper and more accessible is an example of applied science.

The scientific efforts that are concentrated on making new facts available is known as pure science. Efforts such as discovery of new elements is an example of pure science.

The scientific efforts that are concentrated on applying scientific knowledge in solving new problems in the world is an example of applied science.

Efforts to make quinine cheaper and more accessible is an example of applied science.

Learn more: https://brainly.com/question/13675957

Answer: The mass

Explanation: ability to rust, flammability, and ability to combust are chemical properties.

This means that the sodium bicarbonate in this experiment is the Excess reactant.

These are the elements or compounds which are involved in a chemical reaction and react to form the products.

The reactants were sodium bicarbonate and acetic acid with small amounts of the former being  unreacted at the bottom of the beaker means it's anm excess reactant.

Read more about Reactants here https://brainly.com/question/6421464

Answer:

1. Crush the sugar into powder.

2. Heat the water.

3. Dissolve it by stirring continuously

Explanation:

1. Crushing the sugar into powder increases surface area. So it increases the changes of dissolving

2. Heating the water increases the capacity of water to dissolve sugar.

3. Stirring continuously increases randomness of particles so eases mixing up thus increasing dissolving tendency.

Answer: fe 203

Hope that helps

Answer:

the substance with 169 melting point is buten

The formal charge on B = -1

Formal charge on F forming two bonds = +1

Formal charge on F forming one bond = 0

The lewis dot structure of BF₃ where all the atoms have a complete octet is shown in the image below.

Although this structure does not exist in reality. The actual structure of BF₃ has boron bound to all the three fluorine atoms via single bonds, this leaves the boron with an incomplete octet. So, BF₃ is actually an exception to the octet rule.

To calculate the formal charge (FC) of an atom in reference to the structure shown below, use the following formula

\(\rm FC = (no. \ of \ valence \ electrons ) - (non \ bonding \ electrons) - (no. \ of \ bonds)\)

Therefore, the formal charge on the atoms are,

\(\rm FC \ on \ B = (3)- (0) - (4) = -1\\\\FC \ on \ F \ with \ two \ bonds = (7)- (4) - (2) = +1\\\\FC \ on \ F \ with \ one \ bond = (7)- (6) - (1) = 0\)

To know more on formal charge, click on

https://brainly.com/question/30459289

#SPJ1

Answer:

Sodium has fewer electrons than aluminum and therefore a weaker inward pull on its electrons, which results in a bigger atomic radius.

The sponge is unsaturated when it is taking in more water. It becomes saturated when it stops taking in water. It is supersaturated when water starts oozing out from the sponge.

A saturated solution contains just as much solute as it normally hold at a particular temperature. An unsaturated solution contains less solute than it can normally hold at a particular temperature. A supersaturated solution contains more solute than it can normally hold at a particular temperature.

We can use a sponge to model these three scenario as follows;

Water continues to enter into the sponge when it is unsaturated, this continues until the sponge becomes saturated with water and takes in no more water. When the sponge becomes supersaturated, water begins to ooze out from the sponge because it can no longer hold more water.

Learn more: https://brainly.com/question/1527403

Answer:

Nepal Bhasa Patrika

Explanation:

Nepal Bhasa Patrika