How many molecules in 35 g of CO2

False. Because the scientific study of behavior of the substances near 0k is called cryogenics.

The behavior of the substance at very low temperature is called cryogenics. This is the branch of engineering that involves the study of very low temperatures that are below 123k.Rapid moving molecules in a substance  have a higher temperature than slower moving molecules. Ultra cold temperature changes the chemical properties of materials. It is used to produce cryogenic field  for rockets MRI machines, storing large quantity of food. It is also used in freezing blood sample and tissues. This is also use preservation of organs.

Pyrogenic is the formation of the particle by means of flame oxidation of metals in gas phase. This is the study of temperature between 1000c to 2400c.this is produced by producing heat.it generally produced in human body caused by fever.

So, the behavior of a substance at 0k is called cryogenics not pyrogenic.

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Answer:

chemical energy then electrical energy

Explanation:

chemical energy in the batteries is converted to electrical energy

When a developed TLC plate is placed in the chamber and capped, the iodine sublimes and reacts with the compounds on the plate.

While a evolved TLC plate is placed in the chamber and capped, the iodine sublimes and reacts with the compounds at the plate, forming yellow-brown spots. The shade occurs due to the fact iodine bureaucracy colored complexes with many natural compounds.

The silica gel at the TLC plate is impregnated with a fluorescent material that glows underneath ultraviolet light. A niche will intervene with the fluorescence and seem as a darkish spot on a sparkling background. At the same time as beneath the UV light, the spots may be outlined with a pencil to mark their places.

The staining of a TLC plate with iodine vapor is some of the oldest strategies for the visualization of organic compounds. it's far based totally upon the remark that iodine has a high affinity for each unsaturated and aromatic compounds.

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Some practical uses of metallic change are : electrolysis, heating of silver coin and melting.

Practical application of metallic change is electrolysis. Charge is conducted through metals. In electrolysis, input of energy is needed to force a nonspontaneous redox reaction.

When the silver-colored penny is heated, zinc atoms outside and copper atoms inside move around because of the heat. This results in the outer layer of zinc mix with the copper which becomes an alloy called yellow brass.

Melting is an example of a physical change. A physical change is a change to a sample of matter where some properties of the material change but the identity of the matter does not.

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Answer:

There are places on earth where its too hot and the water evaporates and that means that the land dries out and the water goes away and people can't live there.

PLEASE GIVE BRAINLIEST THANK YOU!!!

Hydrogen  is the first element to have a different number of protons and neutrons in the nucleus.

Hydrogen (H), a gaseous material that is colorless, odorless, tasteless, and flammable, is the most basic chemical element. A proton with one unit of positive electrical charge and an electron with one unit of negative electrical charge make up the hydrogen atom's nucleus.

Hydrogen makes up just around 0.14 percent of the weight of the Earth's crust, despite being the most common element in the universe and three times as abundant as helium, the next most frequent element. The water in oceans, ice caps, rivers, lakes, and the atmosphere all contain significant amounts of it.

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The concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution. The  Concentration of Cl⁻ and Zn²⁺ is 0.28M and 0.14M respectively.

Molarity can be calculated by dividing number of moles of solute by volume of solution in liter. Molarity is affected by temperature. Its unit is mole/liter. It measure the concentration of any solute in a solution.

Molarity of ZnCl[tex]_2[/tex]=0.14 M

ZnCl[tex]_2[/tex] dissociates as

ZnCl[tex]_2[/tex][tex]\rightarrow[/tex] Zn²⁺+ 2Cl⁻

Concentration of Zn²⁺=0.14 M

Concentration of Cl⁻= 2×0.14 M=0.28M

Therefore, concentration of Cl⁻ and Zn²⁺ is 0.28M and 0.14M respectively.

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All atoms of a given element contain the same number of protons but different number of neutrons.

The smallest component of ordinary stuff that makes up a chemical element is an atom. Atoms that are neutral or ionized make up every solid, liquid, gas, and form of plasma. Atoms are very tiny, measuring approximately 100 picometers across.

Each atom is made up of a nucleus and one or more electrons that are linked to it. One or more protons and a significant number of neutrons make up the nucleus. Only the most prevalent kind of hydrogen is neutron-free. The nucleus of an atom contains more than 99.94% of its mass.

Although the number of protons in the nucleus is the same for all atoms of the same chemical element, the number of neutrons is not. As a result, atoms of the same chemical element do not always have the same mass.

Thus, option A is correct.

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To learn the temperature, rapid temperature increase and adaptive radiation of euphemisms.

What is temperature?

A substance's temperature is defined as its average kinetic energy across all of its atoms or molecules. A substance's constituent particles do not all possess the same kinetic energy. The distribution of the particles' kinetic energy at any particular moment can be used to describe it.

What is adaptive radiation?

Rapid increases in the number of species sharing a common ancestor are known as "adaptive radiation," which is marked by significant ecological and morphological variety. The adaptation of organisms to novel ecological environments is the driving force behind it.

Around 55 million years ago, there was a sharp rise in global temperature, resulting in tropical conditions worldwide and the adaptive radiation of euphemisms.

Therefore,  these conditions cause adaptive radiation of euphemisms.

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For a neutral molecule, the sum of individual oxidation states is 0. Since the oxidation states of Nitrogen and oxygen have already been found in previous steps, the oxidation state of manganese can be found by simple substitution.

Answer: The oxidation states for manganese, nitrogen and oxygen are as +2, +5 and -2 respectively.

The oxidation state, commonly known as the oxidation number, is the potential charge that an atom would have if all of its bonds to other atoms were fully ionic. It describes the degree of atom oxidation within a chemical compound. The oxidation state may be positive, negative, or zero in theory.

The oxidation state of an atom refers to the total number of electrons that have been added to (forming a negative oxidation state) or subtracted from (producing a positive oxidation state) an element to bring it to its current state.

The oxidation number of a free, neutral element is zero, according to one of these oxidation laws. The charge of a monoatomic ion is equal to the number of its oxidations. The oxidation number for Group IA elements is always 1. The oxidation number for Group IIA elements is always +2.

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When a solution containing AGNO3 is mixed with a solution of NACl  AgCl will precipitate because Q > Ksp. Silver chloride will precipitate out of solution, leaving an unsaturated solution of AgCl.

Explain molarity?

Information provided according to:

As a result, AgNO3's molarity is 0.10 M.

Following that, NaCl's molarity is equal to 0.075 M.

Thus, Ksp AgCl is equal to 1.77 * 10^-10.

Then the variables in the equation are as follows:

 AgNO3 + NaCl AgCl(s) + NaNO3 (aq)

Next, we have 0.10 moles of Ag+ for every 0.10 moles of AgNO3 (molarity is equal to 0.10 M).

Following that, we have 0.075 moles of Cl- (molarity is 0.075 M) for 0.075 moles of NaCl.

Now, we compute Q, which is:

So Q is = [Ag+][Cl-]

In the following, Q is equal to (0.10 M)(0.075 M) = 0.0075.

Currently, Ksp is 1.77 x 10-10.

Q >>> Ksp.

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The maximum mass of pure iron that can be produced by the combustion of coke is 3.9 × 10⁶ kg.

Combustion, or burning, is a high-temperature exothermic redox chemical reaction between gasoline and an oxidant, generally atmospheric oxygen, that produces oxidized, regularly gaseous products, in a combination termed as smoke. combustion, a chemical reaction between materials, typically consisting of oxygen and normally observed by way of the era of warmth and mild inside the shape of a flame.

A combustion reaction is a sort of chemical reaction wherein a response between any flammable substance and an oxidizer takes area as a way to shape an oxidized product. Combustion reactions are regularly followed via fires and the discharge of power in the form of warmth.

Calculation:-

2Fe₂O₃ ------> 4Fe(s) + 3O₂

C(s) + O₂  -------> CO₂ ₓ 3

________________________

2Fe₂O₃ + 3C(s) ------------> 4Fe + 3CO₂(g)

mass of coke = 630 . t

                       = 630 × 1000

                      = 6.3 × 10⁵

So, 3 × 12g og Coke = (4 × 56)/3×12 kgFe

                                  = 39.2 × 10⁵ kg Fe

                                  = 3.9 × 10⁶ kg

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Type of substance is the original orange solid is element .

What is chemical reaction ?

Chemical reaction, the process by which one or more substances (reactants) are transformed into one or more other substances (products). Substances are either chemical elements or compounds. Chemical reactions rearrange the constituent atoms of reactants to produce different substances as products.

Chemical reactions are an integral part of technology, culture, and even life itself. Fuel combustion, iron smelting, glass and pottery making, beer brewing, and wine and cheese making are just a few examples. Activities involving chemical reactions that have been around for thousands of years. Chemical reactions are abundant in a variety of complex processes that occur in Earth's geology, atmosphere and oceans, and in all biological systems.

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Answer: get frogged person

Explanation:

The formal charge of the central nitrogen atom of dinitrogen sulfide is +1.

Formal charge refers to the presence of electrons on an atom when absent and present in the molecule.

Lewis structure is The structural representation of a compound in which the electrons existing around the atom are represented by points is called the Lewis point structure.

Three possible Lewis structures of dinitrogen sulfide are shown below.

But the best Lewis structure of these is the first. The central nitrogen atom has a positive charge and the sulfur atom has a negative charge. The charges on these atoms are the most stable and make compounds stable.

Therefore, the central nitrogen atom has a formal charge of +1.

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Ammonia can form nitrite, which can then be converted into nitrate. Both can be taken in by plants. This process is known as nitrification.

The nitrogen cycle refers to the processes by which nitrogen is cycled between the living and non-living components of the environment.

The nitrogen cycle consists of processes that add as well as remove nitrogen from the soil and the atmosphere.

Plants require nitrogen for growth. This nitrogen is sourced mainly from the atmosphere. Nitrogen is the most abundant gas in the atmosphere, however, it exists in a form that is not readily available to plants.

Hence several processes such as nitrogen fixation, nitrification, and ammonia conversion are required for plants to obtain nitrogen.

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The frequency of a 4,600 cm wave is 652 Hz

Frequency is the number of waves that pass a fixed point in unit time

Here given data is

Wave =  4,600 cm = 4.6 × 10⁸ nm

We have to calculated frequency = ?

Frequency =v = c/λ

Frequency = 3×10⁸m / 4.6 × 10⁸ nm

Frequency = 652 Hz

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The most likely purpose of the purchase of a Reflected Ultraviolet Imaging System (RUVIS) device by the local police department is: to find and process more fingerprints.

Digital forensics can be defined as a type of technology which is designed and developed to gather, access, and monitor the activities of a particular user or users on a computer system, networks, and other devices over the Internet such as a Reflected Ultraviolet Imaging System (RUVIS).

Generally speaking Reflected Ultraviolet Imaging System (RUVIS) simply refers to an optical touchless instrument that is designed and developed to be used by crime scene search investigators and the police for the detection of latent fingerprints without making use of any of the following chemical substances:

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The stress that would lead to response by succession is volcanic eruption.

We define the term environmental stress as anything that tends to change the way the environment is. We know that there are several events that could change the way that the ecosystem operates as well as the kind of species that are in the ecosystem.

When there is a volcanic eruption, there is likely to be an ecological succession in which the new kinds of organisms would appear in the ecosystem as it begins to recover from the impact of the volcanic eruption.

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Electrons are transferred through the respiratory chain from reduced nadh or fadh2 to oxygen in small steps with each step in the pathway associated with a slightly more positive reduction potential.

What is  reduction potential?

Because reduction requires electron gain, an electrode's tendency to gain electrons is referred to as its reduction potential.

The electrode potential is the equilibrium potential difference between the metal electrode and the solution around it. It is also defined as an electrode's proclivity to lose or gain electrons.

When a piece of metal is immersed in a solution of its own ions, a potential difference is formed at the metal-solution contact. The size of the potential difference measures the tendency of electrodes to oxidize or reduce, or to lose or acquire electrons.

The half cell is represented by the metal and the ion, and the reaction is half-reaction. The immersed metal is an electrode, and the potential is caused by a reaction at the electrode's interface, and the solution is known as the electrode potential. Thus, electrode potential is an electrode's proclivity to lose or absorb electrons. The reduction potential is used when the reduction occurs at the electrode.

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The ground state electronic configuration has the lowest energy distribution of the electrons. correct option is (A).

The energy associated to an electron is that of its orbital. The energy of configuration is often approximated as the sum of the energy of each electron, neglecting the electron electron interactions.

The configuration that corresponds to the lowest electronic energy is called the ground state. Any other configuration is an excited state.

As an example, the ground state configuration of the sodium atom is 1s2 2s2 2p6 3s1, as deduced from Aufbau principle.

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The mass of AgBr produced from 22.5 L of AgNO₃ is 50.01 gram

Mass is a measure of the amount of matter in a substance or an object.

Here given reaction is stoichiometric

From the balanced equation for the reaction si

2AgNO₃ + MgBr₂ → 2AgBr + Mg(NO₃)₂

The mole ratio of AgNO₃ and AgBr is 2 : 1

Mole of 22.5 g AgNO₃ = 22.5/169.87

Mole of 22.5 g AgNO₃ = 0.1325 mole

Equivalent mole of AgBr = 0.265 mole

Mass of 0.265 mole AgBr = 0.265×188.77

Mass of 0.265 mole AgBr = 50.01 gram

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The percentage s character and what percent p character are 25% and 75 % respectively.

Sp3 hybridization refers to the integration character of one 2s-orbital and three 2p-orbitals to create 4 hybrid orbitals with similar characteristics. in order for an atom to be sp3 hybridized, it must have an s orbital and 3 p orbitals. whilst 1 s and 2 p are superimposed.

Calculation:-

Sp³ = s + 3P

percentage s character = 1/4 × 100

                                        =  25 %

Percentage P character = 3/4 × 100

                                        = 75%

They shape the sp2 hybrid orbital, and the process is called sp2 hybridization. then again, whilst 1 s is superimposed with three p atomic orbitals, they shape a brand new hybrid orbital, named the sp3 hybridized orbital. Orbitals. Hybridized structures. sp.

The time period sp3 hybridization refers to the integration of a man or woman of one 2s-orbital and three 2p-orbitals to create four hybrid orbitals with comparable traits. in order for an atom to be sp3 hybridized, it needs to have an s orbital and three p orbitals.

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The interstitial fluid surrounding the proximal tubules becomes very salty, with a high osmolality due to Na+ and water exchanging across the epithelium, with water moving into the intestinal fluid and Na+ moving into the tubules.

Proximal tubules is the coiled portion arising from the bowmans capsule. It is situated near the cortex.

The proximal convoluted tubules is formed by a single layer of cuboidal epithelial cells. Characteristic feature of these cells is the presence of hair like projections directed towards the lumen to tubules, because of the presence of these projections, the epithelial cells are called as brush bordered cells.

Substances reabsorbed from proximal tubules are glucose, amino acids, sodium, potassium, calcium, bicarbonates, urea, uric acid, and water.

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The route that the mountaineer should choose from the graph is route A.

The term mountaineer has to do with a person who is a specialist in the process of climbing mountains. Such a person does know the various routes around a mountain and how to get to the peak of the mountain very easily.

In this case, we have to consider the steepness of each of the paths as we can see from the graph. The steeper the mountain path that is chosen the broader it is and the  easier it is for the mountaineer to climb the mountsin successfully.

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Missing parts;

A mountaineer is planning an expedition. He wants to follow the easiest possible path, which means he needs to find the most gentle slope up the mountain. Which route should the mountaineer choose?

A.Route A

B.Route B

C.Route C

D.Route D

Well .you know that PV= nRT.

Explanation:

..and so we access the molar quantity...

n=PVRT=758⋅Torr760⋅Torr⋅atm−1×122⋅mL×10−3⋅L⋅mL0.0821⋅L⋅atmK⋅mol⋅323.15⋅K

=4.59×10−3⋅mol... and please note that if you go thru the quotient the units cancel out to give 1mol−1=11mol= mol  AS REQUIRED....

And then continuing the torture with units, we take the product...

=4.59×10−3⋅mol×39.9⋅g⋅mol−1=0.183⋅g.

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STP volume of carbon dioxide gas produced from the combustion of 14.0 g of propane according to the combustion reaction is 20.83 L

What is Combustion reaction?

STP, Volume of CO2 = ?

Combustion reaction of propane:

C3H8 + 5 O2 --> 3 CO2 + 4 H20

Molar mass of C3H8 is 12×3 + 8×1 = 36+8 = 44g/mol

No of moles of C3H8 in 14 g = 14 g / 44 = 0.31 mol

So no of moles of CO2 produced = 3× 0.31 mol

At STP, one mole of any gas occupies a volume of 22.4L

STP volume of CO2 gas is 22.4×3×0.31 = 20.83 L

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A balanced chemical equation for this reaction would be 1 mole of Ca reacting with 1 mole of Cl2 to produce one mole of CaCl2.

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reactant and product side of the reaction and the total charge are the same for both the reactants and the products. In other words, the mass and the charge are balanced on both sides of the reaction.

In the formation of calcium chloride reaction we can see that Calcium is reacting with chlorine molecule to form a calcium chloride molecule. From the balanced chemical reaction we can see that one mole of calcium reacts with one mole of Cl2 to form one mole of calcium chloride molecule. The reaction is given below

Ca + Cl2 ⇄ CaCl2

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