Pepsin can begin the digestion of protein in the stomach after it is converted from pepsinogen by?

Rudy consumes  2.5 ×[tex]10^{-4}[/tex] moles hydrogen ions.

What are ions?

A negatively charged ion called an anion has more electrons than protons compared to a positively charged ion called a cation. The electrostatic force causes opposite electric charges to be drawn towards one another, causing cations and anions to attract one another and easily form ionic compounds.

Atomic or monatomic ions are those made up of just one atom, whereas molecular or polyatomic ions are those made up of two or more atoms. Physical ionization occurs when molecules spontaneously collide in a fluid (gas or liquid), producing "ion pairs" that each contains a free electron and a positive ion. Chemical reactions, such as the dissolution of a salt in liquids, can also produce ions.

Rady consumes 500 ml of organic juice of [tex]p^{H}[/tex]

3.3

[tex]p^{H}[/tex] = 33

- log [[tex]H^{+}[/tex]] = 3.3

[[tex]H^{+}[/tex]] = [tex]10^{-3.3}[/tex]

[[tex]H^{+}[/tex]] = 5.01 x [tex]10^{-4}[/tex] M

Volume of organic juice = 500ml = 0.5L

Mole of [tex]H^{+}[/tex] ions = 2.5 ×[tex]10^{-4}[/tex] moles

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Sparrows with average-sized wings survive severe storms better than those with longer or shorter wings illustrates Stabilizing selection.

Stabilizing selection is a natural selection in which stabilized traits are selected rather than any extreme traits by the nature. Nature do not favors any drastic change in the traits over the years.

Stabilizing selection is often confused with or misunderstood as negative or purifying selection.

Stabilizing selection favors intermediate variants promoting survival of the species.

Average phenotype is selected and continuously dominates in coming generations.

This natural selection helps species to adapt stable phenotype for better survival rate.

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d5 electron count can exhibit both high-spin and low-spin states in an octahedral complex

Electron is a free, open-source software framework developed and maintained by GitHub. This framework is designed to build desktop applications using web technologies rendered using a variant of the Chromium browser engine and a backend using the Node.js runtime environment.

Electrons are negatively charged subatomic particles that are free to (not) bond with atoms. Electrons bound to atoms are one of the three main types of particles within atoms. The other two are protons and neutrons. Electrons, protons, and neutrons together form the nucleus.

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According to the research, the correct option is do not perform photosynthesis. Animal cells lack chloroplasts because they do not perform photosynthesis.

It is a eukaryotic type cell belonging to the Animalia kingdom and can reproduce independently and depending on the tissue to which they belong, they fulfill specific functions that define their morphology, their function and their needs.

In this sense, plants carry out photosynthesis since their cells have chloroplasts, which house chlorophyll, essential for obtaining energy from sunlight, on the other hand, animal cells lack these organelles and instead have what is necessary for oxidation glucose (respiration).

Therefore, we can conclude that according to the research, the correct option is do not perform photosynthesis. Animal cells lack chloroplasts because they do not perform photosynthesis.

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Answer:

A, C And B

Explanation:

mark me brainlest

Answer:

A.✅(maybe)

B.✅

C.✅

D.✅

Explanation:

For A. if the symbol is given then answer can be determined. If symbol is V then it's true, if other then false

Answer:

High sodium concentration in the extracellular fluid and high potassium concentration in the cytoplasm

Explanation:

In calcium nitrate 0.502 mol are present no of moles of calcium ions Calcium ions=0.502 mol, nitrate ions= 1.004 mol, oxygen atoms =3.012 mol

Calcium nitrate Ca(NO3)2 = 0.502 mol

The required equation for the given question is below:

Ca(NO3)2 → 2N03- + Ca2+

Here two ion are present

2 nitrate ions per mole of Ca(NO3)2

1 calcium ion per mole of Ca(NO3)2

6 oxygen atoms per mole of Ca(NO3)2

Calcium ions therefore equal 0.502 mol,

Nitrate ions equal 2 x 0.502 mol = 1.004 mol

Oxygen atoms equal 6 x 0.502 mol = 3.012 mol

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Answer:

a water molecule.  

Explanation:

The two reacting groups are a carboxylixc acid group (-COOH) and an amine (-CNH2).  The forms the peptide link (-C-CO-N-C) and a molecule of water is released (H2O).

The molar mass of anthroquinone is 208g/mol. The empirical formula of anthraquinone is C₇H4O₁. And the molecular formula of anthraquinone is C₁₄H₈O₂

The empirical formula is only a ratio of the moles of the various chemicals expressed in whole numbers. They are the elements that make up the compound.

The total number of atoms of an element in a compound is indicated by the molecular formula. It is the total atoms.

Thus, the mpirical formula of anthraquinone is C₇H4O₁. And the molecular formula of anthraquinone is C₁₄H₈O₂.

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The volume of a solution of iron (III) chloride is 1565.29 mL when it has a density of 1.118 g/mL and a mass of 1.75 kg.

Density may be defined as a type of physical property that significantly deals with the description of how much space an object or substance takes up with respect to the amount of matter in that object or substance.

In a more simple sense, it is characterized as the measurement of quantity or mass per unit of volume in a particular substance.

According to the question,

The density of iron chloride solution = 1.118 g/mL.

The mass of iron chloride solution = 1.75 kg.= 1750 g.

The formula for calculating the density is as follows:

Volume = 1750 g/1.118g/mL = 1565.29 mL.

Therefore, the volume of a solution of iron (III) chloride is 1565.29 mL when it has a density of 1.118 g/mL and a mass of 1.75 kg.

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Because they lack the stiffness required for alignment, molecules with only single bonds do not generally display liquid-crystalline characteristics. One or more atoms make up a molecule. The biological substances, such as proteins and DNA, can be composed of thousands of the atoms.

A molecule is composed of atoms that have been joined together. So, whereas an atom is a separate thing, a molecule is generated when those atoms come together. These elements are may be the same, such as the two oxygen atoms bonded together (O2), or they may be different atoms linked together, such as the water (H2O).

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High temperature: 58 °F

Low Temperature: 43 °F

50 °F is the average temperature.

Precipitation: 3.12"

79% humidity

44 °F Dew Point

Wind speed: 9 mph

29.96 mmHg pressure "Hg

12-mile visibility

Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. It is the largest of the British Isles, the largest European island, and the ninth-largest island in the world, with a total area of 209,331 km (80,823 sq mi). It is characterized by a maritime climate with a narrow temperature range.

Northern Bay has about 290 permanent residents and is located on Route 70 between the neighboring communities of Gull Island and Ochre Pit Cove. It stretches from the "south side" of Northern Bay, where the beach is, to what was once known as the "Lower Rooms."

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Scientists use tectonics plates to understand the plates moving beneath the volcano.

According to the widely recognized scientific hypothesis known as plate tectonics, the Earth's lithosphere is made up of many sizable tectonic plates that have been steadily moving for nearly 3.4 billion years. Our globe would look drastically different if it weren't for plate tectonics. We have a stable climate, mineral and oil deposits, and oceans with a chemical balance that supports life thanks to the continuous recycling of the Earth's crust. Even now, every few hundred million years, it offers evolution a boost. The plates fit tightly against one another and sit on the heated, molten rock of the Earth's mantle like fragments of a broken shell. The plates move as a result of the heat produced by nuclear processes occurring inside the planet.

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One type of chemical reaction is combustion. Carbon dioxide is produced when carbon combines with oxygen in the combustion of charcoal, for example. Carbon and oxygen are reactants, or the chemicals that initiate a chemical reaction. The process produces carbon dioxide. However, this change is just physical.

As the constituent molecules' composition remains unchanged: 11.19% hydrogen and 88.81% oxygen by mass. Physical change can be classed as either reversible or irreversible. When we burn coal, a chemical reaction occurs, and new substances such as carbon dioxide and water are formed. Burning coal is considered as a chemical change since it results in the production of new compounds.

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The protons located on the unlabeled carbon atom belong to a proton set.

An atom is a particle of matter that uniquely defines a chemical element. Atoms consist of a central nucleus surrounded by one or more negatively charged electrons. The nucleus is positively charged and contains one or more relatively heavy particles known as protons and neutrons.

Atoms are the building blocks of matter that cannot be broken down into smaller pieces by chemical processes. Most atoms are made up of three particles: protons, neutrons, and electrons. The defining particle that identifies an atom is the number of protons it contains. A particle without protons is not an atom.

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The property that the upset stomach reliever and the baking ingredients have in common is baking soda or sodium bicarbonate. They used to bake cakes or biscuits and relive in acid reflex.

Sodium bicarbonate is the salt of carbonate, and it is commonly known as baking soda. The chemical formula is NaHCO₃. It is used in baking, cleaning, and acidity relieving.

Thus, baking soda, also known as sodium bicarbonate, is an ingredient that both the remedy for upset stomach and the baking ingredients share. They used to make biscuits or cakes and indulge in acid reflex.

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The resulting temperature change is: 40 degrees c

Here given heat added to system 40kcl

Weight of water 1kg we know the specific heat of water is

S= 4.2 J/g \degree c=1 cal/g\degree c

Q=40kcal  m=1.0 kg=4000 g

We have the heat transfer equation given by

Q= ms\Delta t   where Q=heat energy   m=mass

\Delta t=change in temperature

Put the values and we'll have a change in temperature

\Delta t= [tex]\frac{Q}{ms}[/tex]

\Delta t= 40 degree C

Temperature is a numerical expression of how hot a substance or radiation is.

There are three different types of temperature scales: those that are defined by the average translational kinetic energy per freely moving microscopic particle, like an atom, molecule, or electron, in a body, like the SI scale; those that rely only on macroscopic properties and thermodynamic principles, like Kelvin's original definition; and those that are not defined by theoretical principles but rather by useful empirical properties of particulate matter.

A thermometer is used to determine temperature. It is calibrated using different temperature scales that historically defined themselves using different reference points and thermometric substances.

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Paracelsus (Philippus Aureolus Theophrastus Bombastus von Hohenheim) was the first to articulate the foundational principle of toxicology, that the dose that makes the poison.

Philippus Aureolus Theophrastus Bombastus von Hohenheim, in short Paracelsus, is the man who introduced the use of chemicals and minerals in medicine.  He quoted that   "In all things, there is a poison, and there is nothing without poison. It depends only upon the dose whether a poison is poison or not..." Since most of his prescriptions had the attention of arguments and fell out of favor, the use of arsenic is still active in killing certain parasites.

In the 16th century, his ideas on poison led to the introduction of chemistry into medicine.  He was appreciated for these ideas when his presciption cured  Louis XIV. The field of medicine would be different without his contributions.

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From the knowledge provided in this module, emergency response training should be provided before starting work and as periodic refresher training.

What does routine refresher training entail?

Refresher training is applicable to all learning domains. This tactic is particularly important in compliance and safety training, as businesses typically have regulations for yearly or irregular reviews. Regular sessions make sure that students are continuously updated on the most recent information as well as intricate organizational procedures and processes.

Who needs to be trained on emergency action plan components?

OSHA mandates that all employees receive training on the emergency action plan. When any of the following occurs, employees must receive training: A job is initially given to an employee. The plan's requirements for an employee change.

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The ratio of the mass in grams of fluorine to the mass in grams of iodine in the three compounds is 13.49

Fluorine mass in grams is 134.9 g and  iodine mass in grams is 10.0 g so here the ratio of this two in the three compound is 134.9/10.0=13.49

The mass of ratio of florine and iodine is 13.49

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At a ph of 7.25 , the ratio of protonated glu molecules to deprotonated glutamate molecules is 1.100

Here at a pH of 7.25, the average Glu side chain is and protonated negatively charged so used henderson hasellbalch equation so ph=pka+log[A+]/[HA] the side chain carboxylic acid functional group of the glutamic acid molecule has a pKa of 4.1 and therefore exists almost entirely in its negatively charged deprotonated carboxylate form at pH values greater than 4.1; therefore, it is negatively charged at physiological pH ranging from 7.35 to 7.45

Glutamic side chain is 4.25

At a ph of 7.25 , the ratio of protonated glu molecules to deprotonated glutamate molecules is 1.100

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The numerical value of the Ksp  of [tex]BaSO_{4}[/tex] is 1.69 * 10^-20.

The Ksp is an equilibrium constant that shows the extent to which a substance is soluble in water. Now consider the fact that [tex]BaSO_{4}[/tex] is almost insoluble in water.

i) The Ksp of the [tex]BaSO_{4}[/tex] solution can be obtained from the relation;

Ksp = [[tex]Ba^{2+}[/tex]] [[tex]SO_{4}^{2-}[/tex]]

ii) The numerical value of the Ksp is obtained from; [1.30 × 10–10]^2 = 1.69 * 10^-20

iii) The reason for the toxicity of [tex]BaCO_{3}[/tex] even though it is not more soluble that barium sulfate is that [tex]BaCO_{3}[/tex] can dissolve in the gastrointestinal tract which is acidic leading to barium poisoning.

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The final temperature of the gas is 137°C at which it must be heated to occupy the volume of 557 ml.

Given,

V₁= 371ml

V₂ = 557 ml

T₁ = 0°C or 273 okay

We ought to locate the very last temperature of the fuel that must be heated.

as the cylinder is transferring freely, the pressure is equal to the outside pressure, i.e., 1 atm, beneath all situations.

consequently, by using the use of Charles regulation, we get

V₁ / T₁ = V₂ / T₂

where V₁ and V₂ are preliminary and very last volumes

and T₁ and T₂ are preliminary and very last temperatures (in Kelvin).

accordingly, the very last temperature is

T₂ = V₂ × T₁ / V₁

Or, T₂ = 557 x (zero+273) / 371

Or, T₂ = 410 okay

Or, T₂ = 137°C

consequently the final temperature is 137°C.

The physical principle known as Charles' law states that the volume of a gas equals a constant value multiplied by its temperature as measured on the Kelvin scale (zero Kelvin corresponds to -273.15 degrees Celsius)

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In the absence of stability information water containing formulations (prepared from ingredients in solid form) should be assigned by a beyond-use date that is: no later than 14 days when stored at cold temperature.

When to use beyond-use dates when preparing suspension?

When using manufactured solid dosage forms to prepare a solution or aqueous suspension, the compound is additionally to consider factors such as hydrolysis and the freeze-thaw property of the final preparation before assigning a beyond-use date.

What is solution and suspension?

While suspensions are heterogeneous mixtures, solutions are homogeneous mixtures. The particles of a suspension may be seen with the open eye, whereas the particles of an answer are at the ion or molecular level and cannot be seen with it.

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When a cell is placed in a solution with a very low solute concentration, water diffuses into the cell. such a solution is called a hypotonic solution. Subtract the solute's mass from the total volume of the solution.  Divide the figures you found for mass and volume to find the concentration of your solution.

The overall solute concentration of a solution is described by its osmolarity. A solution with a low osmolarity has more water molecules than solute particles; a solution with a high osmolarity contains fewer water molecules than solute particles. Solute concentration is defined as the amount of solutes and particles dissolved in a solution.

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Body temperature is controlled by a negative feedback control system.

What is negative feedback?

In biological systems, a type of control known as negative feedback occurs when a process's output lowers its own stimulus. A common regulation mechanism in many biological responses is feedback. The body may regulate numerous aspects of its internal environment by permitting particular routes to be switched on and off. This is like turning a switch. Feedback enables a pathway's output to operate a switch. Negative feedback, often known as a "negative feedback loop," happens when a pathway's end product disables the corresponding metabolic step.

In order to maintain body temperature, the hypothalamus reacts to this information by directing nerve impulses to effectors. For instance, the hair erector muscles tighten up if we get too cold. As a result, a layer of air is trapped near to the skin, raising the skin hairs. Systematic negative feedback regulates body temperature.

Thus the hypothalamus is the vital organ for this system.

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The density of water at room temperature is 1.0 g/ml.

Density is defined as the mass per unit volume. It gives the denseness of a given substance in a specific space. Different substances have different densities.

The formula to calculate the density is:

                                        ρ =m/v

where,

ρ is the density, m is the mass of the object and V is the volume of the object. The SI unit of density is kg/m³, but we use g/ml for our convenience.

For example, the density of water is 1000 kg/m3 but we convert it into 1.0 g/ml.

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In addition, the sodium-potassium pump activates integrators that regulate the Mitogen-Activated Protein Kinase (MAPK) Pathway, intracellular calcium, and reactive oxygen species. The majority of the ATP produced by human cells is used to maintain sodium (Na+) and potassium (K+) concentration gradients.

Sodium and potassium move in the opposite direction of the concentration gradients. The Na+ K+-ATPase pump maintains a gradient of higher sodium concentrations extracellularly and higher potassium levels intracellularly.

The sodium-potassium pump is a cellular mechanism that transports sodium and potassium ions in opposite directions against a concentration gradient using Adenosine triphosphate (ATP). The pump mechanism's purpose is to keep the potassium ion concentration constant.

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Answer:

1. there are 29,000 grams present in 29 kilograms

2. there are 2000 millimeters present in 2 meters.

check out this conversion table if you get stuck again! :)