Increasing the volume of a sealed container will cause the gas particles within the container to.

The oil not dissolve into the water because of hydrophobic interactions.

The propensity of nonpolar groups or molecules to assemble in water solutions is referred to as the hydrophobic interaction. The interactions between water and hydrophobes are known as hydrophobic interactions (low water-soluble molecules).

Nonpolar hydrophobic molecules, which typically have a long carbon chain and do not interact with water molecules, are known as hydrophobes. The interaction that occurs when fat and water are combined is a nice illustration. The hydrophobic effect, which promotes the aggregation of these nonpolar solutes, is brought on by the exclusion of nonpolar moieties from an aqueous environment. Due to its crucial function in both chemistry and biology, it has been the subject of extensive research.

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The equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g).  SO\(_2\)  is limiting reagent.

The reactant that controls how much of the products are generated inside a chemical reaction is known as the limiting reagent. Since some of the other reactants remain that after limiting reagent has been used fully, it is occasionally discovered that they are in excess in the reactions. The theoretical yield is the most product that can theoretically be produced.

2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g)

moles of SO\(_2\) =20.0 g / 64.07

                      =0.312moles

moles of O\(_2\)= 15.6 g/32

                   =0.487moles

On dividing the moles by stoichiometry, out of  O\(_2\) and SO\(_2\), SO\(_2\)  is limiting reagent.

Therefore,  the equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g).  SO\(_2\)  is limiting reagent.

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Explanation:

The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change

Answer:True

Explanation:

Answer:

is there a way of reducing light pollution at the edges of a forest work?

Answer:

5.77 x 10¹⁴ Hz

Explanation:

Answer:

\(\boxed{\rm Al_{\,(s)}+Fe_2O_{\,(s)} \rightarrow Al_2O_{3\,(s)} + Fe_{\,(s)}}\)

Explanation:

Aluminium metal + iron(I) oxide powder → aluminium oxide solid + iron metal

This is an example of a displacement reaction, with chemical equation:

\(\boxed{\rm Al_{\,(s)}+Fe_2O_{\,(s)} \rightarrow Al_2O_{3\,(s)} + Fe_{\,(s)}}\)

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Answer:

Substance I is a neutral substance and substance II is a base.

The frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

The frequency and wavelength of a wave are related by the following equation:

λf = c

Where λ is the wavelength of the wave in meters, f is the frequency in Hertz, and c is the speed of light in a vacuum.

in this case, λ = 676 nm = 6.76 x \(10^{-7\) m

c = 299,792,458 m/s

Making f the subject of the formula:

f = c/λ

  = 299,792,458/6.76 x \(10^{-7\)

  = 4.43 x \(10^{14\) hertz

In other words, the frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

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Hello. You have not presented the image that presents the two elements mentioned in the question. This makes it impossible for your question to be answered. However, I will try to help you as best I can.

To say whether the compounds obey the law of multiple proportions, you should observe whether one of the elements, formed from the compounds, maintains a fixed mass, while the other element presents the mass in a varied amount of small, whole numbers, spread across the formed compounds .

This is because the law of multiple proportions states that an element must have a fixed mass when reacting with another element to create compounds. This reaction will allow this element to keep the mass fixed, while the other element will generate different compounds, where each one presents a part of the mass of the forming element, in small and whole numbers.

The carbons on either side of the double bond are pointed in opposite directions.

Answer:

The heat required to convert 1 gram of water to steam is ∆Hvap = 2260 J/g.

So, to convert 15,000 J of heat to steam, we need to divide 15,000 J by 2260 J/g = 6.62 g.

Therefore, 6.62 grams of water are converted to steam when 15,000 J of heat is absorbed.

Answer:

Difference in temperature.

Explanation:

Conduction is the movement of heat energy through a substance or from one substance to another by direct contact of atoms and molecules. Heat moves directly from one molecule to another. The heat energy speeds up the movement of the atoms and they collide with other molecules setting them into faster motion.

Answer:

39

Explanation:

Total protons + total neutrons = mass number

When 1-chloropentane, 3-chloropentane, and 2-chloro-2-methylpentane are treated with a strong base, two different alkenes will be produced each time. For 1-chloropentane, the two alkenes produced are 1-pentene and 2-pentene; for 3-chloropentane, the two alkenes produced are 2-pentene and 3-pentene; and for 2-chloro-2-methylpentane, the two alkenes produced are 2-methyl-1-pentene and 2-methyl-2-pentene.

Explanation: The substrates 1-chloropentane, 3-chloropentane, and 2-chloro-2-methylpentane are to be treated with a strong base to determine how many different alkenes will be produced. Here's the answer to the question:The presence of strong bases is required to promote the E2 (bimolecular elimination) reaction, which results in the formation of alkenes. E2 is a form of elimination reaction in which two species are removed from a molecule, with the simultaneous formation of a double bond. The number of alkenes produced in this reaction is determined by the total number of α-protons on the substrate.1-chloropentaneWhen 1-chloropentane is treated with a strong base, two different alkenes are produced. 1-pentene and 2-pentene are the two alkenes produced.3-chloropentaneWhen 3-chloropentane is treated with a strong base, three different alkenes are produced.1-pentene, 2-pentene, and 3-pentene are the three alkenes produced.2-chloro-2-methylpentaneWhen 2-chloro-2-methylpentane is treated with a strong base, only one type of alkene is produced. 2-methyl-2-pentene is the only alkene produced. Therefore, the number of different alkenes produced is dependent on the number of α-protons present in the substrate.

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Answer:

no

Explanation:

Answer:

The answer is B

Answer: Finding the [H3O+] and pH of Strong and Weak Acid Solutions The larger the Ka, the stronger the acid and the higher the H+ concentration at equilibrium. hydronium ion, H3O+, 1.0, 0.00, H2O, 1.0×10−14, 14.00.

Explanation:The hydrogen ion in aqueous solution is no more than a proton, a bare ... the interaction between H+ and H2O .

molar mass= energy x mass= 10 x 2.55 x 10^-23

Avogadro's number (NA) or Avogadro's constant (6.0221 x 10^23). The term "mole" is defined as that one mole of a substance with a molecular (or atomic) mass of one (1), will have a mass of 1 gram.

The number of molecules in one mole is 6.022 * 10^ 23 numbers. The molecular mass of the molecule is 2.55 x 10^-23

Molar mass can be defined as 'mass per mole.' In other words, molar mass is the sum of the mass of all the atoms found in one mole's worth of a substance. It is expressed in units of grams per mole.

Molar mass is depicted for elements or molecules. In the case of single elements or individual atoms, the molar mass would just be the element's mass expressed in atomic mass units.

Molar mass =  2.55 x 10^-23/ 6.022 * 10^ 23

                   = 0.423

Therefore, Avogadro's number (NA) or Avogadro's constant (6.0221 x 10^23). The term "mole" is defined as that one mole of a substance with a molecular (or atomic) mass of one (1), will have a mass of 1 gram.

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Answer:Water contains Oxygen the purified the methane gas

Explanation:

Answer:

B. NUCLEAR POWER CAN PRODUCE ELECTRICITY IN A Y KIND IF WEATHER.

Answer:

In humans, a cleft chin is dominant and no-cleft is recessive. What will the generations look like? Assume that Mendel’s method of crossing two true breeding parents with opposite traits is followed. Check all that apply.

The P generation, F1 generation, and F2 generation will have all cleft chins.

The P generation, F1 generation, and F2 generation will have all no-cleft chins.

The P generation and F1 generation will have all cleft chins.

The F1 generation will have all cleft chins.

The P generation and F2 generation will have all no-cleft chins.

The P generation and F2 generation will have cleft chins and no-cleft chins.

The P generation, F1 generation, and F2 generation will have cleft chins and no-cleft chins.

Explanation:

For average speed, we divide the total distance covered by the total time taken.

After doing that, you will see that Jane has the lowest average speed.

1. The number of mole of copper in 5.0 grams of nickel coin is 0.059 mole

2. The number of atoms of copper in 5.0 grams of nickel coin is 3.55×10²² atoms

First, we shall obtain the mass of copper in 5.0 grams of nickel coin. Details below:

Mass of copper = percent of copper × mass of compound

Mass of copper = 75% × 5

Mass of copper = 0.75 × 5

Mass of copper = 3.75 g

Now, we shall obtain the mole of copper. This is shown below:

Mole = mass / molar mass

Mole of copper = 3.75 / 63.546

Mole of copper = 0.059 mole

The number of atoms of copper can be obtain as shown below:

1 mole of copper = 6.022×10²³ atoms

Therefore,

0.059 mole of copper = 0.059 × 6.022×10²³

0.059 mole of copper = 3.55×10²² atoms

Thus, the number of atoms of copper is 3.55×10²² atoms

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Electrons, H2, and O2 are not allowed to transfer across the proton exchange membrane, while H+ ions can move through due to differences in size, charge, and the membrane's selective permeability.

The proton exchange membrane (PEM) used in fuel cells and other electrochemical devices is designed to selectively allow the transfer of protons (H+ ions) while inhibiting the passage of electrons, H2 molecules, and O2 molecules. This selectivity arises from the membrane's physical and chemical properties.

Electrons are much larger than protons and cannot pass through the small pores or channels present in the PEM. Similarly, H2 and O2 molecules are electrically neutral and cannot move across the membrane, which is selectively permeable to ions.

In contrast, H+ ions are small and positively charged, allowing them to move through the PEM. The membrane is designed with specific materials, such as perfluorinated sulfonic acid polymers (e.g., Nafion), which have ion-conductive properties, enabling the facilitated transport of protons while blocking the passage of larger molecules and electrons.

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The isotope symbol that fits each description is as follows: 68 neutrons, 47 electrons is Ag b. mass number = 197, 79 electrons is Au c. atomic number = 86, 136 neutrons is Rn d. atomic number = 76, mass number = 192 is Os.

Isotopes are two or more atom types that share the same atomic number (number of protons in their nuclei), location in the periodic table, and chemical element but have distinct nucleon numbers (mass numbers) as a result of having a different number of neutrons in their nuclei. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics.

The name "isotope" refers to the fact that different isotopes of the same element occupy the same location on the periodic table. The word "isotope" is derived from Greek origins that mean "the same place".

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Answer:

Explanation:

mjiio[mk'pk oikiom[,l

Answer:

The bigger marble may hold more momentum

Explanation:

Answer:

In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom.

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please give brainlist

Answer:

Nonmetals with Nonmetals

Explanation:

Their difference in electronegativity is below 1.7