What happens to the chemical structure of water when it changes states

It is true that I think the morning ozone mixing ratio predicted by the photostationary-state relationship would be more accurate.

This is due to the fact that greater ROG (reactive organic gas) concentrations in the morning cause ozone to be produced more quickly through the following reaction: NO2 + ROG = O3 + NO The slower ozone synthesis in the afternoon due to the lower ROG levels results in a lower calculated ozone mixing ratio.

Due to other elements, such as wind and atmospheric mixing, the real ozone mixing ratio may not vary as much between morning and afternoon. As a result, the projected ozone mixing ratio for the morning would be more accurate.

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Answer:

At a constant 100km/hr, you would travel 600km

Explanation:

Have a good day :)

Answer:

600

Explanation:

the upper person is correct.. 100 per hour and u got 6.. so multiply 6 times 100 and it's 600

From strongest to weakest bond strength: left to right:- Mg^2+ O^2 > Ca^2+ O^2- > Ca^2+ Se^2- >Li F^- > Na^+ F^- > Na^+ Br^- due to short Ionic Bond strength.

Bond energy, also known as mean bond enthalpy as well as average bond enthalpy, is a measure of the strength of a chemical bond. In chemistry, bond strength has been defined as the strength that a chemical bond contains two atoms together. This one is usually expressed in kilocalories per mole as the amount of energy needed to break the bond.

Due to the electrostatic attraction among its negative and positive ions, an ionic compound is stable. The lattice energy of an ionic bond is the amount of energy required to separate one mole of the a compound into its gas phase ions. Ions to higher charges as well as shorter distances between them have higher lattice energy.

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It is important to consider shedding when assessing the potential risks associated with biohazard experiments involving research animals, and to take appropriate precautions to minimize the risk of exposure to these hazards.True.

Shedding of biohazards from research animals is an important factor to consider when evaluating the risk of conducting experiments involving these animals.

Biohazards are infectious agents or biological materials that can pose a threat to human health, animal health, or the environment. The risk of exposure to biohazards can be influenced by a variety of factors, including the route of transmission and the amount of the infectious agent or biological material present.

Shedding refers to the release of infectious agents or biological materials from animals into the environment, which can increase the risk of exposure to these hazards.

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Hence, when 1.28 moles of hydrogen react, approximately \(7.712 \times 10^{23\)  water molecules will be produced.

According to the balanced chemical equation, 3 moles of hydrogen react with 1 mole of \(Fe_2O_3\) to produce 3 moles of water. Therefore, the molar ratio between hydrogen and water is 3:3, or simply 1:1. This means that for every mole of hydrogen that reacts, one mole of water is produced.

Given that 1.28 moles of hydrogen are reacting, we can conclude that an equal number of water molecules will be produced. Therefore, the number of water molecules can be calculated by multiplying the number of moles of hydrogen by Avogadro's number, which is approximately \(6.022 \times 10^{23\) molecules per mole.

Calculating the number of water molecules:

1.28 moles of hydrogen × \(6.022 \times 10^{23\) molecules/mole = \(7.712 \times 10^{23\)water molecules.

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Transition metals are much stronger and denser than alkali metals and alkaline earth metals and it is located between group 2 and group 3 of the periodic table.

Alkali metals and alkaline earth metals form ions with a +1 charge while the transition metals can form ions with variable charges. The transition metals are much harder, stronger and denser. They have much higher melting points . The transition metals are much less reactive. The alkali metals react with water, oxygen and halogens while the transition metals either react very slowly or do not react at all. A group 1 of the periodic table that is alkali metal will tarnish in the presence of oxygen as a metal oxide is formed. When cut with a knife the shiny appearance of the metal disappears in seconds as it is covered by the dull metal oxide.

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Answer:

The light goes through

Explanation:

The light goes through the transparent glass without being reflected or absorbed, for example, a window is a transparent glass, you never see light being reflected off of a window

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The correct answer is that each member of a homologous series typically differs from the previous member by one carbon atom.

n a homologous series, each member differs from the previous member by the same functional group and a constant increment of carbon atoms. This constant increment is known as the "carbon atom difference" or "carbon atom increment."

In the given options, the correct answer is (1) 1. Each member of a homologous series typically differs from the previous member by adding or subtracting one carbon atom.

For example, consider the homologous series of alkanes:

Methane (CH4)

Ethane (C2H6)

Propane (C3H8)

Butane (C4H10)

In this series, each member differs from the previous member by adding one carbon atom.

Methane has one carbon atom, ethane has two carbon atoms (one more than methane), propane has three carbon atoms (one more than ethane), and so on.

Therefore, the correct answer is that each member of a homologous series typically differs from the previous member by one carbon atom.

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The type of bonding expected for each substance is as  Co(s): Metallic bonding, CoCl2(s): Ionic bonding, CCl4(l): Covalent bonding.

a. Co(s) (solid cobalt): Metallic bonding is expected in solid cobalt. Metallic bonding occurs between metal atoms, where the valence electrons are delocalized and form a "sea" of electrons that can move freely throughout the metal lattice. This results in high electrical and thermal conductivity.

b. CoCl2(s) (solid cobalt(II) chloride): Ionic bonding is expected in solid cobalt(II) chloride. Ionic bonding occurs between a metal cation (Co2+) and nonmetal anions (Cl-). The Co2+ cations donate electrons to the Cl- anions, resulting in the formation of a lattice structure held together by strong electrostatic forces.

c. CCl4(l) (liquid carbon tetrachloride): Covalent bonding is expected in liquid carbon tetrachloride. Covalent bonding occurs between nonmetal atoms, where they share electrons to achieve a stable electron configuration. In carbon tetrachloride, the carbon atom shares electrons with four chlorine atoms, forming a tetrahedral molecule held together by covalent bonds.

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Answer:

Gas Pressure

Explanation:

Gas pressure is caused by the force exerted by gas molecules colliding with the surfaces of objects (Figure 5.2. 1). Although the force of each collision is very small, any surface of appreciable area experiences a large number of collisions in a short time, which can result in a high pressure.

Answer:

Collisions

Explanation:

It says that it was the answer.

The concentration of the acid is  0.016 M

A neutralization reaction is a chemical reaction in which an acid and a base react to form a salt and water. The reaction occurs when the hydrogen ions (H+) from the acid react with the hydroxide ions (OH-) from the base to form water (H2O). The salt that forms depends on the specific acid and base that are reacted.

Using;

CAVA/CBVB = NA/NB

CA = concentration of acid

CB = concentration of base

VA = volume of acid

VB = Volume of base

Then;

CAVANB = CBVBNA

CA =  CBVBNA/VANB

CA = 0.0193 M  *  25.6 mL * 1/15 mL  * 2

CA = 0.016 M

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We need to add 50 mL of lotion base to the 30 mL of oxiconazole nitrate lotion to reduce its concentration to 6 mg/mL.

To solve this problem, we need to find the volume of lotion base that needs to be added to achieve a concentration of 6 mg/mL.

First, we need to convert the concentration of the oxiconazole nitrate lotion from 1% w/v to mg/mL.

1% w/v means that 1 gram of oxiconazole nitrate is present in 100 mL of solution. Therefore, the concentration is 1 gram/100 mL = 10 mg/mL.

We want to reduce the concentration to 6 mg/mL. This means that for every 1 mL of solution, we need 6 mg of oxiconazole nitrate.

Now, let's calculate the volume of lotion base needed. Since we have 30 mL of the original lotion with a concentration of 10 mg/mL, the total amount of oxiconazole nitrate in this lotion is 30 mL * 10 mg/mL = 300 mg.

To achieve a concentration of 6 mg/mL, we divide the total amount of oxiconazole nitrate (300 mg) by the desired concentration (6 mg/mL):

300 mg / 6 mg/mL = 50 mL.

Therefore, to achieve a concentration of 6 mg/mL, 50 mL of lotion base should be added to the existing 30 mL of oxiconazole nitrate lotion.

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Answer:

I am pretty sure it is An exothermic reaction has reactants that are lower in energy than products because energy is released to form the products.

Hope i could help and please mark me

The reaction is exothermic because the total energy released by the products is greater than the energy absorbed in the reactants.

The exothermic reactions are those in which heat and light is released to its surrounding.

In an exothermic reaction, the standard enthalpy is always negative.

Some examples are burning sugar, burning of candles, rusting of iron.

Thus, the correct option is D, The reaction is exothermic because the total energy released by the products is greater than the energy absorbed in the reactants.

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Answer:

True

Explanation:

Explanation:

density=mass÷volume

volume of irregular object= 71-61= 10 mL

density=125.5÷10

density= 12.55g/mL

Answer:

Sandstone.

Explanation:

There is some rock and sand on this type of stone, that is sandstone. Sandstone is stone that is mixed of sand and stone.

hope this helps.

Elements created in stellar nucleosynthesis are carbon, oxygen, iron, calcium .

What is stellar nucleosynthesis ?

Stellar nucleosynthesis is a process involving nuclear reactions in which new atomic nuclei are synthesized from existing nuclei or nucleons. The first stage of nucleosynthesis occurred in the hot early universe, producing H, He, and trace amounts of Li-7 (primordial nucleosynthesis). In today's universe, nucleosynthesis takes place as follows.

(1) thermonuclear reaction and explosion inside the star (nucleus formation up to the Fe peak), (2) neutron capture and explosion inside the star (nucleus formation above the Fe peak), (3) stars Spallation reactions in interstitial matter, where light nuclei (Li, Be, and B) arise from the fragmentation of heavy nuclei (C, N, and O).

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Answer:

2

Explanation:

Answer:

It is Noble-gas notation

Explanation:

Just did it on Edgenuity 2020

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, the given electronic configuration represents noble-gas notation​.

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

The systematic distribution of electrons in the various atomic orbitals is called its electronic configuration. The atomic number of argon is 18. The electronic configuration of argon is (Ne) 3s² 3p⁶. 1,2,3 represents the number of shells and s and represents the orbitals. The superscripts represents the number of electrons in each orbitals. The given electronic configuration represents  noble-gas notation​.

Therefore, the given electronic configuration represents noble-gas notation​.

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18.99g/mol F = 1 mole of F

1 mole is equal to Avogadro's number which is:

\(6.02214076 × {10}^{23} \)

Therefore, one mole of fluorine has 6.02214076 × 10^23 fluorine atoms.

Answer:

Explanation:

The Molar mass of fluorine= 18.99

Moles=mass/molar mass=18.99/18.99=1

Numbers of atoms=1x6.02x10^23=6.02x10^23

I hope it helps

Answer:

answer

Explanation:

explination

Answer:

Facts About Biosphere 1: The Evolution Of Biosphere

Biosphere has evolved.  It started from the non living matter or simple organic compound which created the life. This process is called bioprocess which conducted around 3.5 billion years ago.

Facts about Biosphere 2: the life of earth

It is not easy for the scientists to determine the life of earth.  However, they can estimate it after the discovery of the metasedimentary rocks from Western Greenland. The scientists believed that it was dated back around 3.7 billion years old.

Facts About Biosphere 3: Another Evidence For The Earth’s Life

Evidence was found in Western Australia. The discovery of microbial mat fossils made the scientists estimated that the earth was dated around 3.48 billion years ago.

Answer:

Explanation:

When we go down in a column , we are going down in a period . In going down , one additional orbit go on adding to the atom . But the total number of electrons in the outermost orbit which is also called valence electron remains the same .

For example , when we go down in the first   group A , the outermost orbit go on changing like 1 s¹ , 2 s¹ , 3 s¹ . 4 s ¹ etc which represents hydrogen , lithium . sodium , potassium etc.

So we see that , it is number of valance electrons that remains constant.

Answer:

C: water crops often to wet soil.

Explanation:

Working in the plan industry, it becomes obvious that when watering the plants often, it will pack down the topsoil into the plant. Topsoil is lose at first as stated above, but when enough water gets on it, it becomes almost like mud. This is the kind of topsoil you want. No wind or water will mess it up because it already it watered! It will also help the grow. In addition, plowing is not correct because you only need to plow twice in the plant process. Before you plant the seeds, and to harvest the crops. If you plow to soon and often, you won’t have any plants.

Answer:

The answer is species diversity

Explanation:

Hope this helps:)......if not then sorry for wasting your time and may God bless you:)

Answer:

Formaldehyde, ozone, carbon monoxide, and radon are common indoor air contaminants. Formaldehyde can come from building materials and household products, ozone can be produced by electronic devices, carbon monoxide can be produced by gas appliances, and radon can seep into homes from the ground. Sulfur oxides, on the other hand, are more commonly found in outdoor air pollution, particularly from industrial emissions and fossil fuel combustion.

Answer:

Compound 3 is a clear liquid with a strong pleasantly fruity smell. If cooled it freezes at about −10°C. In the solid state it does not conduct electricity. ... It dissolves slightly in water, and a solution of 2g in 100mL of water doesn't change the electrical conductivity of the water.

Answer:

molecular

Explanation:

In the case of Compound 1, the fact that melted below room temperature, and is a volatile liquid at room temperature, strongly suggests it's a molecular compound.

The concept combined gas law is used here to determine the new temperature. The new temperature obtained is 384 K.

The combined gas law is defined as the law which combines Boyle's law, Charles's law and Gay-Lussac's law. Mathematically the combined gas law can be expressed as:

PV / T = constant (k)

When two substances are combined, then the equation is:

P₁V₁/T₁ = P₂V₂/T₂

T₁ = 15 + 273 = 288 K

T₂ = P₂V₂T₁ / P₁V₁

= 100.0 × 75.0 × 288 / 45.0 × 125.0

= 384 K

Thus the new temperature is 384 K.

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