7. Emissions of sulfur dioxide and oxides of nitrogen are the pollutants mainly responsible for the production of acid rain.
8. When the base of an inversion lowers, pollutants are able to be dispersed throughout a greater volume of air.
9. The best time of day to see the green flash is around noon when the sun's rays are most intense.
10. Oxides of nitrogen from automobile exhaust appear to be the main cause of acid rain in eastern North America.

To solve this problem, we can use the Ideal Gas Law equation: PV = nRT. Where P is pressure, V is volume, n is the number of moles of gas, R is the gas constant, and T is temperature. First, we need to convert the given volume of 28.5 L to liters per mole (L/mol) by dividing by the molar volume of an ideal gas at standard temperature and pressure (STP), which is 22.4 L/mol.

Given:
P = 1.8 atm
V = 28.5 L (convert to liters if needed)
T = 298 K
R = 0.0821 L·atm/mol·K (ideal gas constant)

Step 1: Rearrange the Ideal Gas Law equation to solve for n: n = PV/RT

Step 2: Plug the given values into the equation: n = (1.8 atm × 28.5 L) / (0.0821 L·atm/mol·K × 298 K)

Step 3: Calculate the number of moles: n ≈ 2.18 moles

Therefore, there are approximately 2.18 moles of oxygen gas in the cylinder.

Learn more about volume here : brainly.com/question/1578538

#SPJ11

Answer:

Biotic factors cant survive as if there no abiotic factors which means theres no air , surrounding.water, climate which makes the biotic factors to die .i.e An ecosystem cant be formed without abiotic factors.

Answer:

Either A or D

But i think D

hope this helps =3

sorry if im wrong

An oxide of rhenium crystallizes with rhenium atoms at each of the corners and oxygen atoms in the middle of each edge of the cell. The formula of the oxide is ReO2.

An oxide is a chemical compound of at least one oxygen atom and one other element. One of the most common oxides is carbon dioxide, which is made up of one carbon atom and two oxygen atoms. Oxides are found in many other minerals and rocks, as well as in the atmosphere and they may be divided into acidic oxides and basic oxides on the basis of their chemical behavior. Formula of the oxide the rhenium atoms are present at each of the corners, whereas the oxygen atoms are located in the middle of each edge of the cell, as a result, the oxide formula will be ReO2.

When the structure of the oxide is observed, it is observed that the oxide is made up of tetrahedra in which the oxygen atoms are positioned at the vertices and the rhenium atoms are positioned at the centre of each face. In this, the atoms are arranged in the form of a cubic unit cell, with the oxygen atoms situated at each corner and the rhenium atoms located at the center of each edge. As a result, the oxide formula will be ReO2.

Learn more about rhenium at:

https://brainly.com/question/2692749

#SPJ11

There cannot be a reaction between solid magnesium metal and aqueous sodium nitrate because magnesium cannot displace sodium from solutions.

The activity series of metal is a table that arranges metals or their ions in descending order of reactivity. In other words, it is a table that arranges metals based on how reactive they are from the strongest to the weakest.

Metals at the top of the reactivity series are able to displace metals that are below them in reactivity. On the other hand, lower-placed metals cannot displace higher-placed metals on the reactivity series.

The reactivity series of metals follows the pattern, potassium<sodium<calcium<magnesium<carbon<zinc, and so on.

Considering this fact, one would not expect solid magnesium metal to displace sodium from solutions because sodium is more highly placed on the reactivity series table than magnesium. If the reverse were to be the case, however, sodium would be able to displace magnesium.

Hence, there cannot be a reaction between solid magnesium metal and aqueous sodium nitrate.

More on the reactivity series can be found here: https://brainly.com/question/24866635

#SPJ1

Answer:

There cannot be a reaction because magnesium cannot displace sodium from solutions.

I hope this helps! Cheers ^^

Answer:

The nucleus in eukaryotes and the cytoplasm in prokaryotes

Explanation:

The nucleus is the largest organ in a eukaryotic cell which is responsible for the control of the cell activities based on processing of received information and cell administration. The nucleus is therefore, known as the cell cell control center for regulating the metabolism of the cell and administers the cell and cellular information with which proteins are made

The nucleus contains nucleolus and it is the store for the chromosomes, which play an important role in genetics, related to the synthesis and replication of DNA and RNA

The functions of the nucleus are spread out through out the cytoplasm of prokaryotes.

Answer:

volume= 1.77dL

first you'll find the moles using

Moles= Mass/Molar mass

After that you'll find the volume using

Molarity= Moles/Volume

Answer:

c. sometimes

Explanation:

Its depending on what the new genetic sequence expresses.

Answer: In its natural condition, a pure element

Radiation interacts with matter to produce :

Ionization

Excitation

Free radicals

Chemical bonds

Radiation interacts with matter to produce the following effects:

Ionization: Radiation can ionize atoms or molecules by removing or adding electrons, creating charged particles called ions.

Excitation: Radiation can excite atoms or molecules by elevating their energy levels without ionizing them.

Free radicals: Radiation can generate free radicals, which are highly reactive species with unpaired electrons.

Chemical bonds: Radiation can break chemical bonds in molecules, leading to the formation of new compounds or fragments.

Therefore, the correct answers are:

Ionization

Excitation

Free radicals

Chemical bonds

Learn more about Radiation here:

https://brainly.com/question/13934832

#SPJ11

Answer:

This is balanced

Explanation:

Both sides contain 2 Ag 2 NO3 1 Ba and 2 Cl.

Answer:

The answer is (A)

Explanation:

When the weather changes, nature also changes because most plants rely on photosynthesis and if they don't get as much light then they can't support as much as they used causing them to shut down parts of the plant.

Answer:

Sex cells are different in body cells because the sex cells are eggs while body cells are formed.

The products will be \(ZnCl_2(s) + H_2(g)\)

Zn is higher than hydrogen in the reactivity series. Thus, it will be able to displace hydrogen from the acid.

The equation of the reaction becomes: \(Zn(s) + HCl(aq) -- > ZnCl_2 (s) + H_2 (g)\)

Hydrogen gas is released as a result. In fact, it is one of the ways of preparing hydrogen gas in the laboratory.

More on chemical reactivity can be found here: https://brainly.com/question/9621716

#SPJ1

The quantity of Cu deposited at the cathode will be 7.117 grams.

Given,

Current (in Amperes) = 12 A

This will be equal to 12 C/s (in coulombs per second).

Therefore the total charge in 30 minutes will be:

Q = 12C/s × 30 min × 60 seconds/minute

=> Q = 21600 C

Now, the number of moles of copper which are plated out (n) will be :

n = Q / z·F

In the half-cell reaction,

the number of electrons ( for Cu ) will be = 2 (Cu 2+)

F, the Faraday's constant = 96,485 per mole

We have already discussed that,

n = Q / z.F

=> n = 21600 / (2×96485)

=> n = 0.112 mol

So, 0.112 mol of Cu will be equal to:
0.112×63.546 = 7.117 g

Learn more about Copper Electrolysis  at:

https://brainly.com/question/15208303

In the case of the equilibrium reaction provided, if the concentration of Co(H2O)2+ is increased, the reaction will shift to the right in order to consume the excess Co(H2O)2+ and produce more CoCl2 and H2O.

Conversely, if the concentration of CoCl2 is increased, the reaction will shift to the left in order to consume the excess CoCl2 and produce more Co(H2O)2+ and Cl- ions.

According to Le Chatelier's principle, a change in concentration of one or more of the reactants or products of a chemical reaction at equilibrium will cause a shift in the equilibrium position to counteract the change and re-establish equilibrium.

Specifically, if the concentration of one of the reactants is increased, the reaction will shift in the direction that consumes that reactant in order to restore equilibrium.

Learn more about chemical equilibrium at: https://brainly.com/question/18849238

#SPJ1

Answer:

Assuming the mass of Na2SO4.10H2O obtained from the crystallization was: 8.5g

The % yield is 94.3%

Explanation:

Assuming the mass of Na2SO4.10H2O was:

Based on the reaction:

2NaOH + H2SO4 + 8H2O →Na2SO4.10H2O

Where 2 moles of NaOH reacts producing 1 mole of Na2SO4.10H2O

To solve this question we need to find the moles of NaOH added. With the moles and the reaction we can find the moles of Na2SO4.10H2O and its actual theoretical yield. Assuming the mass of Na2SO4.10H2O produced was: 8.5g

we can find the percent yield as follows:

Moles NaOH:

25.0cm³ = 0.0250dm³ * (2.24mol/dm³) = 0.056 moles NaOH

Moles Na2SO4.10H2O:

0.056 moles NaOH * (1mol Na2SO4.10H2O / 2mol NaOH) = 0.028 moles Na2SO4.10H2O

Mass Na2SO4.10H2O:

0.028 moles Na2SO4.10H2O * (322g / mol) = 9.016g Na2SO4.10H2O = Theoretical yield

Percent yield is 100 times the ratio between actual yield:

8.5g / 9.016g * 100 = 94.3%

Answer- im pretty sure it's 2

Answer:

Explanation:

Filtration is any of various mechanical, physical or biological operations that separate solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass. The fluid that passes through is called the filtrate.[1] In physical filters oversize solids in the fluid are retained and in biological filters particulates are trapped and ingested and metabolites are retained and removed. However, the separation is not complete; solids will be contaminated with some fluid and filtrate will contain fine particles (depending on the pore size, filter thickness and biological activity). Filtration occurs both in nature and in engineered systems; there are biological, geological, and industrial forms. For example, in animals (including humans), renal filtration removes wastes from the blood, and in water treatment and sewage treatment, undesirable constituents are removed by absorption into a biological film grown on or in the filter medium, as in slow sand filtration.

Answer:

A change that produces one or more new substances is a chemical change or chemical reaction.

Answer:

New Substances. type that in.

Explanation:

Answer:

+1

Explanation:

your removing a electron and it was already balanced

Answer: my opinion is about 5 pounds of apples that you can get with $10

Explanation:

srry if im wrong

Answer:

c is the answer

step by step explanation is not

The formula which represent a hydrocarbon with a double covalent bond is C₂H₄.

Hence, option D is correct answer.

A double covalent bond is a type of covalent bond which involves the sharing of two pairs of electrons.

A covalent bond is a type of chemical bond that involves the sharing of electron pairs between the atoms.

Now lets check all options one by one

Option (A): CH₃Cl

In CH₃Cl carbon has 4 valence electrons and carbon shares its 1 electron each with three hydrogen atoms and carbon shares its 1 electron with chlorine. Here bonds are formed due to sharing of electrons between the atoms. Hence CH₃Cl is covalent bonded.

So, it is incorrect option.

Option (B): C₂H₃Cl

In  C₂H₃Cl, here two carbon atoms form double bond but they not form covalent bond.

So it is incorrect option.

Option (C): C₂H₂

In C₂H₂, each carbon has 4 valence electrons and each carbon shares its   one electron with each hydrogen atom here two carbon atoms are triple bonded.

So, it is incorrect option.

Option (D): C₂H₄

In C₂H₄, there are two carbon atoms and two hydrogen atoms, here two carbon atoms are double bonded.

So, it is correct option.

Thus, from above conclusion we can say that The formula which represent a hydrocarbon with a double covalent bond is C₂H₄.

Learn more about Covalent bond here: https://brainly.com/question/12732708

#SPJ2

Answer:

covalent bond

...........

Explanation:

..............................

To determine the electron change taking place for rubidium and the correct formula of the rubidium ion when it reacts with bromine, we need to consider their respective group numbers and the concept of electron transfer in forming ions.

Rubidium is in Group I of the Periodic Table, also known as the alkali metals. Elements in Group I have one valence electron. Bromine is in Group VII, also known as the halogens. Elements in Group VII have seven valence electrons.

When rubidium reacts with bromine, rubidium loses one electron to achieve a stable electron configuration, while bromine gains one electron to achieve its stable electron configuration. This electron transfer results in the formation of ions.

The rubidium ion will have a +1 charge since it loses one electron. The bromide ion, formed by bromine gaining one electron, will have a -1 charge.

Therefore, the correct formula for the rubidium ion is Rb+, indicating that it has lost one electron, and the bromide ion is represented by Br-, indicating that it has gained one electron.

Row: Rubidium (Rb) loses 1 electron, Rubidium ion (Rb+)

Formula: Rb+

Answer:

2.481cm³

Explanation:

this is general has equation so the formula is

P1V1/T1 = P2V2/T2

At STP, pressure is 1.01*10⁵ and temperature is 273K

((1.20*10³)400)/(250+273) = ((1.01*10⁵)V2/(273)

V2 = 2.481cm³

There are a total of 38 atoms in the compound 4(NH3)2NO2.

To determine the number of atoms in the given compound, we first need to break down the formula and identify the number of atoms in each element.

The formula is 4(NH3)2NO2, which can be written as:

4 x 2(NH3) + 1 x 2(NO2)

Each molecule of NH3 contains

Each molecule of NO2 contains

Therefore, the total number of atoms in the given compound is:

4 x 2 x (1 nitrogen atom + 3 hydrogen atoms) + 1 x 2 x (1 nitrogen atom + 2 oxygen atoms)

= 4 x 2 x 4 + 1 x 2 x 3

= 32 + 6

= 38

Learn more about atoms at

https://brainly.com/question/6258301

#SPJ1

The correct answer of the question of Isotope is option c) Atom 1: nucleus with 92 protons and 143 neutrons, 92 electrons and Atom 2: nucleus with 92 protons and 146 neutrons, 92 electrons .

They are isotopes because while each atom has the same atomic number, its atomic mass varies. a radioactive form of an element, as well as any other two or more forms of the same element that have varying numbers of neutrons in their nuclei but equal amounts of protons overall. These forms differ in relative atomic mass but not in chemical characteristics. The terms "radioisotope" and "radionuclide" refer to isotopes that have been observed to decay radioactively, while "stable isotope" and "stable nuclide" refer to isotopes that have not been observed to decay radioactively. In spite of the periodic table only allowing for 11 elements between lead and uranium inclusive, the radiochemist Frederick Soddy first hypothesized the existence of isotopes in 1913. His hypothesis was based on studies of radioactive decay chains that revealed about 40 different species known as radioelements between uranium and lead.

To learn more about neutrons click here

brainly.com/question/10238787

#SPJ4

Complete Question

Each of the following describes an "Atom 1" and an "Atom 2." In which case are the two atoms different isotopes of the same element?

A)Atom 1: nucleus with 6 protons and 8 neutrons,  6 electrons

Atom 2: nucleus with 7 protons and 8 neutrons, 7 electrons

B)Atom 1: nucleus with 8 protons and 8 neutrons,  8 electrons

Atom 2: nucleus with 8 protons and 8 neutrons, 7 electrons

C)Atom 1: nucleus with 92 protons and 143 neutrons, 92 electrons

Atom 2: nucleus with 92 protons and 146 neutrons, 92 electrons

D)Atom 1: nucleus with 1 proton and 0 neutrons, 1 electron

Atom 2: nucleus with 2 protons and 2 neutrons, 2 electrons

E)Atom 1: nucleus with 4 protons and 5 neutrons,  4 electrons

Atom 2: nucleus with 5 protons and 5 neutrons, 4 electrons

Answer:

it's A) or E)

others are not suitable cuz their melting point is weak.

Answer:

Gallium

Explanation:

Because the melting point is low and the drinks are usually around 60-70 degrees Celsius so it wil melt