If I contain 25 grams of argon in a container with a volume of 60 liters and


at a temperature of 400 K, what is the pressure inside the container?

Answer:

Look up at the atom on the periodic table of elements and find out what its atomic mass is. Subtract the number of protons from the atomic mass. This is the number of neutrons that the regular version of the atom has. If the number of neutrons in the given atom is different, than it is an isotope.

The most likely product for this reaction will be A. K2CO3(aq) + H20(l).

It should be noted that a chemical reaction simply means a process where one or more substance which are known as the reactants are converted to another substance which is the product.

In this case, the most likely product for this reaction will be K2CO3(aq) + H20(l). It should be noted that the products are the result of the chemical reaction that is gotten from the reaction. It's the rearrangement of the reactants.

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Answer:The most likely product for this reaction will be A. K2CO3(aq) + H20(l).

Explanation:

A brownfield is a property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant.

A “brownfield” generally refers to a parcel of land that was previously used for industrial purposes and which is contaminated by low concentrations of hazardous chemicals.

A brownfield development requires more work and investment upfront: existing structures may have to be demolished, materials must be removed, and developers may have to engage in extensive environmental cleanup to remove pollutants.

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Explanation:

By Avagadro's Law,

V¹n¹ = V²n², where P and T are constant.

Therefore (4.00L)(0.200mol) = (3.25L)n²,

n² = 0.246mol. (3s.f.)

P.S. n² does not mean the square of n in this case, it is just a subscript.

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Combined Boyle's and Charles' gas law is used here. Therefore, 0.246mol of gas remain if some of the gas is released and the new volume is 3.25 L.

Ideal gas equation is the mathematical expression that relates pressure volume and temperature.

Mathematically the relation between Pressure, volume and temperature can be given as

PV=nRT

where,

P = pressure of ideal gas

V= volume of ideal gas

n =number of moles of ideal gas

T =temperature of ideal gas

R = Gas constant = 0.0821 L.atm/K.mol

By Avagadro's Law,

V₁n₁= V₂n₂, where P and T are constant.

V₁×n₁= V₂×n₂,

(4.00L)(0.200mol) = (3.25L)n²

n₂ = 0.246mol.

Therefore, 0.246mol of gas remain if some of the gas is released and the new volume is 3.25 L.

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All the statements given above are correct.

Atoms within resonance structures are the same. The species' structure is not accurately reflected by a single resonance structure.

A representation of a molecule or an ion called a resonance structure depicts several electron combinations that are not conceivable in a single, static structure.

Resonance hybrid refers to the actual structure of the molecule or ion, which is an average of the potential resonance structures.

Resonance structures are not different in terms of atoms, but rather in the arrangement of electrons.

Resonance structures vary, and no single resonance structure can fully capture the structure of an entire species.

The species that make up resonance structures have isomers.

The species could have any of these structures at any time since resonance forms quickly interconvert.

It is not real to have individual resonance shapes.

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Explanation:

area of triangle is 1÷2 base xheight

\(1 \div 2 \times45 \times 11 \\ = 247.5\)

Answer:

Circulatory System

Explanation:

Blood carries oxygen to the rest of the body, as well as glucose.

Explanation:

Crystallography. an arrangement in space of isolated points (lattice points ) in a regular pattern, showing the positions of atoms, molecules, or ions in the structure of a crystal.

If an atom experiences sufficient thermal activation, it can move to a neighboring lattice position.4 If the vibration frequency of the atom is v and the atom has Z nearest neighbors, the total number of jump attempts is vZ. However, only a small fraction of the attempts will be successful, with a probability depending on the ratio between the necessary activation energy for a single jump QD and the thermal activation kBT. The effective jump frequency ΓD is then

(5.6)

With each successful jump, the atom travels one atomic distance λ and the total traveling distance in unit time is thus ΓDλ. Substituting the jump frequency ΓD into the expression for the root mean square displacement of a random walker [equation (5.5)] and using the spatial coordinate r leads to

Answer:

Pupa Stage

Explanation:

Silk worm consists of four stages- the adult, the egg, the larva (caterpillar) and the pupa stage.

Answer: Mg + FeS ——> Fe + MgS

Explanation: Explain

Ionization of beryllium (Be) produces a +2 charge. Be now has a net positive charge of +2 after losing two electrons and gaining two fewer negative charges in its ionized state.

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However, I can still explain the location of a peptide bond in a peptide in general terms. Peptide bonds are formed between the carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid. This bond formation occurs through a dehydration synthesis reaction, resulting in the elimination of a water molecule.

In a peptide chain, multiple amino acids are linked together through peptide bonds, forming a linear sequence. The location of a peptide bond can be identified by examining the specific amino acids involved in the bond. Generally, a peptide bond connects the carbonyl carbon (C=O) of one amino acid to the nitrogen (N-H) of the adjacent amino acid in the chain.

To pinpoint the exact location of a peptide bond within a specific peptide, a more detailed analysis of the peptide sequence or structural information is usually required.

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Answer:

AB

Explanation:

When combining two elements in different groups, you would just put them together unless you have two or more of each element

If element A is in Group 2 and element B is in Group 17, the formula if they bond together is AB. Therefore, option B is correct.

A chemical element is a type of atom with a specific number of protons in its nucleus, including the pure substance made up entirely of that species. Chemical elements, unlike chemical compounds, cannot be broken down into simpler substances by any chemical reaction.

An element is a substance that is composed of only one type of atom, all of which have the same number of protons. Pure gold is a well-known example. A pure gold ring would be composed of millions upon millions of atoms, each with 79 protons in its nucleus and thus the same atomic number.

Any substance that cannot be decomposed into simpler substances by ordinary chemical processes is referred to as a chemical element. Elements are the basic building blocks of all matter.

Thus, option B is correct.

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Hydrogen chloride (HCl) and sodium bicarbonate (NaHCO3) are the reactants. The substances produced as a result of this reaction are CO2(g), H2O(l), and NaCl(aq).

The reactants in the following equation:

HCl (a q) + NaHCO3(a q) → CO2(g) + H2O(l) + Na C l (aq) are hydrogen chloride (HC l) and sodium bicarbonate (NaHCO3).

Explanation:

A reactant is a substance that undergoes change during a chemical reaction. A reaction equation includes the symbols and formulas of reactants and products, along with the physical states of the substances, as they appear before and after the reaction.

The chemical reaction in this question is: HC l(a q) + NaHCO3(a q) → CO2(g) + H2O(l) + Na Cl (a q)In this equation, the reactants are H Cl (a q) and NaHCO3(a q), which are in an aqueous state.

Therefore, hydrogen chloride (H Cl) and sodium bicarbonate (NaHCO3) are the reactants. The substances produced as a result of this reaction are CO2(g), H2O(l), and Na Cl (a q).

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NaHCO3(s) + HC2H3O2(aq) → CO2(g) + H2O(l) + NaC2H3O2(aq)

This equation represents the reaction of baking soda (sodium bicarbonate) with vinegar (acetic acid) to generate carbon dioxide gas, water, and sodium acetate.

The balanced equation for the reaction of NaHCO3(s) with HC2H3O2(aq) including phase symbols is

NaHCO3(s) + HC2H3O2(aq) → CO2(g) + H2O(l) + NaC2H3O2(aq)

Baking soda, also known as sodium bicarbonate, is a white, crystalline powder with the chemical formula NaHCO3. It is an alkaline substance that neutralizes acids.

Vinegar is mostly composed of acetic acid, HC2H3O2, which is a weak acid. Vinegar has a sour flavor and a strong smell due to the presence of acetic acid.

NaHCO3(s) + HC2H3O2(aq) → CO2(g) + H2O(l) + NaC2H3O2(aq)  This equation represents the reaction of baking soda (sodium bicarbonate) with vinegar (acetic acid) to generate carbon dioxide gas, water, and sodium acetate. When the baking soda and vinegar are combined, a chemical reaction occurs, causing carbon dioxide gas bubbles to form. This is due to the reaction between the acid and base in the mixture, which generates carbon dioxide gas as a byproduct. This reaction is commonly used in baking as a leavening agent to make cakes, muffins, and other baked goods rise.

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Answer:

5.68

Explanation:

just divide. hope this helps!

Answer:

Carbon dioxide ---> CO₂

Water ----> H₂O

Carbon ---> C

Oxygen ----> O₂

Hydrogen ----> H₂

Explanation:

The molecular formula of an element or compound is a formula which represents the composition of a molecule of that element or compound. It consists of the formula representing the atoms present as well as the number of atoms of each element innthe compound written as subscript innthe formula of the element or compound.

The molecular formula of the given elements and compounds are given below:

Carbon dioxide ---> CO₂

Water ----> H₂O

Carbon ---> C

Oxygen ----> O₂

Hydrogen ----> H₂

The molecular formula of carbon dioxide shows that in a molecule of carbon dioxide, there are two atoms of oxygen and one atom of carbon present in a molecule of carbon dioxide.

The molecular formula of water shows that are two atoms of hydrogen and one atom of oxygen present in a molecule of water.

The molecular formula of carbon shows that there are one carbon atoms in a molecule of carbon.

The molecular formula of oxygen shows that there are two oxygen atoms in a molecule of oxygen gas.

The molecular formula of hydrogen shows that there are two molecules of hydrogen in a molecule of hydrogen gas.

Answer:

synergy

Explanation:

when two substances combine effects to be greater than just their sum of their individual effects

Answer:

Mass; mass; amount of space taken up.

Explanation:

Matter is anything that has mass and takes up space. The mass of an object measures the amount of matter or substance the object contains.

Volume is the measure of the amount of space taken up by the object.

The SI units for mass and volume are kilogram (kg) and cubic meter (m³) respectively.

Generally, matter exists in three (3) distinct phases and these are;

1. Solid: it is the state of matter in which the physical substance has a definite shape and fixed volume but not compressible. Examples of solids are pen, screwdriver, television, car etc.

2. Liquid: it is the state of matter in which the physical substance can be poured and takes the shape of its container. Also, liquids generally have a definite volume. Examples of liquids are urine, water, milk, blood etc.

3. Gas: it is the state of matter in which the physical substance has no definite shape or volume and as a result fills all available space. Also, gases are easily compressible and can flow. Examples of gases are hydrogen, oxygen, argon, nitrogen etc.

Answer:

intensive property I think

Explanation:

The treatment to prevent RSV (respiratory syncytial virus) in an extra pale ghost baby is palivizumab (option f).

Palivizumab is a monoclonal antibody medication used to prevent RSV infection, particularly in high-risk infants and children. RSV is a common respiratory virus that can cause severe illness, especially in young children, premature infants, and those with underlying health conditions. Palivizumab works by providing passive immunity against RSV, reducing the risk of severe respiratory infections. It is administered as a monthly injection during the RSV season, typically from November to April.

By receiving palivizumab, the extra pale ghost baby can be protected from the potential complications of RSV infection.

Option f is answer.

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Answer:

The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og).

Explanation:

Answer:

Observation

-I smell onions

-My dog weighs 45 pounds

-It is 85 degrees outside today

Predictions

-My dog will bark at the vacuum cleaner

although he has never seen it before

-My mother is going to cook spaghetti for

supper next Tuesday

-It will be a long, hot summer

Explanation:

The volume of 0.00703 mol of neon gas under the same temperature and pressure as 0.00901 mol of neon gas occupying 242 ml is 188 ml.

According to the Ideal Gas Law, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

Assuming that the temperature and pressure are constant, we can set up a proportion to find the volume of 0.00703 mol of neon gas:

0.00901 mol neon / 242 ml = 0.00703 mol neon / x

Solving for x, we get:

x = (0.00703 mol neon * 242 ml) / 0.00901 mol neon

x = 188 ml

Therefore, the volume of 0.00703 mol of neon gas under the same conditions is 188 ml.

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The ranking of the compounds from highest boiling point to lowest boiling point is: Hexanoic acid > 1-Hexanol > Hexane > n-Hexanal.

Intermolecular forces depend on molecular weight, polarity, hydrogen bonding, and functional groups. The compounds are ordered by boiling point:

Hydrogen bonding and polarity make hexanoic acid the highest boiling chemical.

1-Hexanol, which forms hydrogen bonds, has the second highest boiling point.

Since it does not form hydrogen bonds, nonpolar hexane has a lower boiling point than hexanoic acid and 1-hexanol.

Since it is nonpolar and lacking hydrogen bonding functional groups, n-Hexanal has the lowest boiling point.

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The number of atoms : =  6.02.10²³

Given

mass = 20.17 g of Neon

Required

The number of atoms

Solution

The mole is the number of particles(molecules, atoms, ions) contained in a substance  

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

mol Neon :

= mass : Ar Neon

= 20.17 : 20,1797 g/mol

= 0.999 ≈ 1

The number of atoms :

= 1 x  6.02.10²³

=  6.02.10²³

Answer:

the answer is liquids

Explanation:

After 10 days, there will be approximately 15,625 radioactive atoms left.

What is radioactive?
The process through which an unstable nucleus loses energy through radiation is known as radioactive decay, also recognised as nuclear decay, radioactive contamination, radioactive disintegration, as well as nuclear disintegration. A substance that has unstable nuclei is regarded as radioactive. Alpha decay, beta decay, and gamma decay are three of the most frequent types of decay, and they all involve the emission of one or even more particles. Beta decay is a result of the weak force, while the nuclear force and electromagnetism are in charge of the other two mechanisms. Electron capture, which occurs when an unstable nucleus seizes an inner electron in one of the electron shells, is the fourth common type of decay.

This is because the half life of the nuclide is 2 days, meaning that after 2 days, half of the 100,000 atoms will have decayed and only 50,000 atoms will remain. After 10 days, the number will have halved 6 times, leaving 15,625 atoms (50,000/2^6).

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