the temperature of the co2 in your erlenmeyer is measured as 25.80°c. convert this temperature to kelvin

Answer:

yes glucose is a polar molecule

Explanation:

Because of high difference in electronegative between the oxygen and hydrogen atoms in the OH group

Answer:

the number of protons determines the atomic number

Explanation:

Ex. Aluminum has 13 protons, so it's atomic number is 13

hope this helps :)

Answer:

see the pic for the answer

The reaction you're describing is a halogenation reaction where an unsymmetrical alkene reacts with a halogen (X2) and water (H2O) to form a halohydrin. The general reaction can be represented as follows:

Asymmetrical alkene + X2 + H2O → Halohydrin

For example, let's consider the reaction between propene (an asymmetrical alkene) and chlorine gas (Cl2) in the presence of water (H2O):

CH3CH=CH2 + Cl2 + H2O → CH3CH(Cl)CH2OH

In this reaction, the double bond of propene is broken and a chlorine atom is added to one carbon atom, while a hydroxyl group (-OH) is added to the other carbon atom.

This forms a halohydrin, which in this case is 2-chloropropanol. The reaction mechanism involves the formation of a cyclic intermediate called a halonium ion, which is then attacked by water to form the halohydrin.

Note that the halogenation of an unsymmetrical alkene can lead to the formation of different products, depending on the regioselectivity of the reaction. In the example above, the reaction is regioselective because the chlorine atom is added to the less-substituted carbon atom of the alkene.

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The concentration of hydroxide ions in the solution is approximately 5.623 × 10^(-11) M.

To determine the concentration of hydroxide ions ([OH-]) in a solution, you need to use the relationship between pOH and [OH-]. The pOH is the negative logarithm (base 10) of the hydroxide ion concentration.

Given that the pOH of the solution is 10.75, we can calculate the [OH-] using the following equation:

\(pOH= -log10[OH^-]\)

Rearranging the equation, we get: [OH-] = 10^(-pOH)

Substituting the value of pOH (10.75) into the equation: [OH-] = 10^(-10.75)

Calculating this expression gives us the concentration of [OH-] in the solution: [OH-] ≈ 5.623 × 10^(-11) M.

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Answer: 10 electrons.

Explanation:

Answer:

Explanation:

the maximum number of electrons that can occupy the first five principle energy is that

we know that the maximum number of electrons in an energy level given by the formulae is 2(n^2)

here n=5 as given in the question for the energy level for the 5

put that 5 in the formula we get 2(5^2)

                                               50

so therefore the maximum number of electrons that can be in the first five energy principle level is 50

Answer:

The percentage efficiency of the electrical element is approximately 82.186%

Explanation:

The given parameters are;

The thermal energy provided by the stove element, \(H_{supplied}\) = 3.34 × 10³ J

The amount thermal energy gained by the kettle, \(H_{absorbed}\)  = 5.95 × 10² J

The percentage efficiency of the electrical element in heating the kettle of water, η%, is given as follows;

\(\eta \% = \dfrac{H_{supplied} - H_{absorbed} }{H_{supplied}} \times 100\)

Therefore, we get;

\(\eta \% = \dfrac{3.34 \times 10^3 - 5.95 \times 10^2}{3.34 \times 10^3} \times 100 = \dfrac{549}{668} \times 100 \approx 82.186 \%\)

The percentage efficiency of the electrical element, η% ≈ 82.186%.

All the given elements in the options match the description.

All the elements of group 7 in the periodic table are known as halogens. Examples include chlorine, fluorine, iodine, and bromine. The valence shell of these elements has 7 electrons. Alkaline earth metals are found in Group 2A (also known as IIA) on the periodic table. The alkaline earth metals are Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium.

NGEs (or noble gas elements) like argon are the most non-reactive elements in the periodic table and show little reactivity to other elements at Earth’s surface temperatures and pressures. Potassium belongs to the group of alkali metals in the periodic table and it has one electron in the valence shell.

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Explanation:

Iron fillings are magnetic in nature so They get attracted by a magnet.

One is through sublimation, where the mixture is heated and iodine gets converted into gaseous form, leaving behind the iron fillings.

While visiting his uncle's farm, Derek learned that horses and donkeys are two different species. Based on this information, Derek can infer that horses and donkeys are members of different populations.


Since horses and donkeys are different species, they belong to different populations. A population refers to a group of individuals of the same species that live in the same area and can interbreed. While horses and donkeys can mate, their offspring, known as mules, are usually infertile.

This means that mules cannot produce offspring of their own, which indicates that horses and donkeys are not members of the same population. In contrast, if they were members of the same population, they would be able to produce fertile offspring. Therefore, Derek can infer that horses and donkeys are members of different populations.

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The primary goal of the carburetor is to atomize and vaporize the fuel before mixing it with air in varying proportions, making it the device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions.

The device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions is Carburetor. A carburetor is a device that blends air and fuel for an internal combustion engine. It is often located on the top of an engine on a direct engine-to-carburetor link, and it controls how much air and fuel are mixed.The carburetor must also supply the engine with a spark plug to ignite the fuel/air mixture in each cylinder.

The carburetor must provide a fuel/air mixture that is consistent with the engine's changing demands, which vary with engine speed, load, and temperature. A carburetor is responsible for enriching the fuel/air mixture when the engine is cold and for leaning the mixture as the engine warms up. As well, it is also responsible for regulating the fuel/air mixture at part-throttle levels, where the engine spends most of its time when driving.

When an engine is running at full throttle, it is operating at wide-open throttle (WOT), and the carburetor provides the richest fuel/air mixture possible.The carburetor, like most engine systems, is a complex and sensitive device that must be correctly tuned to perform properly. The primary goal of the carburetor is to atomize and vaporize the fuel before mixing it with air in varying proportions, making it the device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions.

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Moles of H2SO4 that can be made when 12.00 moles of HNO3 are consumed is 72 g of H2O.

Mole, in chemistry, is a standard scientific unit for measuring large quantities of a very small entities such as atoms, molecules and other specified particles. The mole designates a large number of units, 6.02214076 × 10^23. Mole is widely used in chemistry as a way to express amounts of reactants and products of a chemical reaction.

Given;  12 mol HNO3

Moles of H2SO4 that can be made when 12.00 moles of HNO3 are consumed:

12 mol HNO3 x (2 mol H2O/6 mol HNO3) x (18 g H2O/1 mol H2O)

= 72 g H2O

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The amount of chemical product, y, at a distance of x = 1 is given by y = -ln(-(1/2) ln|3| + C3), where C3 is a constant.

The given differential equation is dx/dy = e^(-y)(2x+1), where y represents the amount of chemical product and x represents the length across the reactor.

i. To find the particular solution for y, we need to solve the given differential equation. Let's separate the variables and integrate both sides with respect to x and y.

dx/(2x+1) = e^(-y) dy

Integrating both sides, we get:

∫ dx/(2x+1) = ∫ e^(-y) dy

To integrate the left side, we can use the substitution u = 2x+1. This gives us du = 2dx, which implies dx = du/2.

∫ dx/(2x+1) = ∫ (1/u) (du/2)

= (1/2) ∫ du/u

= (1/2) ln|u| + C1, where C1 is the constant of integration.

= (1/2) ln|2x+1| + C1

Integrating the right side:

∫ e^(-y) dy = -e^(-y) + C2, where C2 is the constant of integration.

Now, equating both sides and simplifying:

(1/2) ln|2x+1| + C1 = -e^(-y) + C2

Rearranging the terms:

e^(-y) = -(1/2) ln|2x+1| + C3, where C3 = C2 - C1.

Taking the natural logarithm of both sides:

-y = ln(-(1/2) ln|2x+1| + C3)

y = -ln(-(1/2) ln|2x+1| + C3), where C3 is a constant.

ii. To find the amount of chemical product, y, at a distance of x = 1, we substitute x = 1 into the particular solution obtained in part i.

y = -ln(-(1/2) ln|2(1)+1| + C3)

Simplifying further:

y = -ln(-(1/2) ln|3| + C3)

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Answer:

non of them it is

halogen elements

The mass of CaCl2 is 0.076gram.

The molar mass of a compound is just the molar hundreds of every detail inside the compound brought up. Since the molar mass of Calcium is 40.08 g and the molar mass of Chlorine is 35.45, it might be 40g.08g+35.45g+35.45g (with 2 Chlorines in step with the subscript.) That leaves you with 110.98 g

Calcium and chlorine are the 2 factors in our instance. The molar loads of Ca (forty.08g/mol) and Cl (35.45g/mol) need to then be determined. Now that we have the masses of calcium and each chlorine atom, we are able to truly place them together to get the whole compound's molar mass, which is a hundred and 10.98 g/mol.

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Answer:

I think they both need water and sun light to stay alive

Explanation: Animals need water so they can have energy and they have extra energy when they are in the sun they have more energy

The aromatic compound is the limiting reagent.

A chemical compound is a chemical substance composed of many same molecules containing atoms from multiple chemical element held together by chemical bonds. A molecule consisting of atoms of best one detail is therefore no longer a compound.

A compound is a material composed of or greater components. Water, carbon dioxide and table salt are a few examples of compounds.

Factors are materials that can't be damaged down into simpler materials with specific houses. factors have been organized by way of their houses to form the periodic desk. or extra atoms can combine to shape a molecule. Molecules inclusive of multiple detail are known as compounds

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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:

46.97g

Explanation:

Hello,

To find the theoretical yield, we must first of all get the equation of reaction right in order to know how the compounds combine together.

Equation of reaction;

2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

From the equation of reaction,

2 moles of C₂H₆ reacts with 7 moles of O₂ to produce 4 moles of CO₂.

Number of moles = mass / molar mass

Mass = number of moles × molar mass

Mass of CO₂ = 4 × 44 = 176g

Mass of C₂H₆ = 2 × 30 = 60g

Mass of O₂ = 7 × 32 = 224g

Therefore, 224g + 60g (O₂ + C₂H₆) = 176g of CO₂.

284g of reactants = 176g of product(CO₂)

(18 + 57.8)g of reactants = x g of products(CO₂)

X = (75.8 × 176) /284

X = 46.97g of CO₂.

Theoretical yield of CO₂ is 46.97g

Based on the analysis above, we can rank the acids from most acidic to least acidic is:

1. CHCl₂COOH

2. CHF₂COOH

3. CH(CH₃)₂COOH

To rank the acids from most acidic to least acidic, we need to consider the stability of their conjugate bases. A more stable conjugate base indicates a stronger acid. The stability of the conjugate base can be influenced by several factors, including the inductive effect and the resonance effect.

1. CH(CH₃)₂COOH:

The presence of the two methyl groups (–CH₃) on the α-carbon of the carboxylic acid group increases electron density through the inductive effect. This electron-donating effect destabilizes the conjugate base, making it less stable.

2. CHF₂COOH:

The presence of the electronegative fluorine atom (–F) on the α-carbon of the carboxylic acid group withdraws electron density through the inductive effect. This electron-withdrawing effect stabilizes the conjugate base, making it more stable compared to CH(CH₃)₂COOH.

3. CHCl₂COOH:

The presence of the two chlorine atoms (–Cl) on the α-carbon of the carboxylic acid group also withdraws electron density through the inductive effect. This electron-withdrawing effect is stronger than the effect of a single fluorine atom. Therefore, CHCl₂COOH has a more stable conjugate base compared to CHF₂COOH.

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The complete question is:

Rank the following acids from most acidic to least acidic. Explain the ranking using the effects that lead to the stabilization of the conjugate base. CH(CH₃)₂COOH, CHF₂COOH, CHCl₂COOH.

We have that the first step is to put the Power source into an on state,Thereby powering the Light point and the Spectrophotometer.

From the question we are told

identify the first step in preparing a spectrophotometer for use.

Generally

This is a device is out there to help scientist i the mostly in the field of chemistry.

Therefore

The first step is to put the Power source into an on state,Thereby powering the Light point and the Spectrophotometer.

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Answer:

water

for one molecule of water each atom has the atomic mass unit, u,shown.

Explanation:

*can i be the brainliest*

Answer:

i believe its A or D

Explanation:

sorry is its wrong

hope it helps

Answer:

One way is that carbon dioxide automatically dissolves in cold ocean surface waters anyway so large bodies of water already have a concentration of carbon dioxide. Another way is when carbon dioxide dissolves in rainwater which later reacts with minerals in rocks. These rocks then get carried away by rivers or streams into bigger bodies of water and the carbon is transported through the minerals in the rocks.

Volume under the following condition is 280.47 cm³.

Given,

intial volume is 310cm³

temperature is 242K

final pressure is 840mmHg

pressure at STP is 1atm or 760mmHg

we have to find out volume at final pressure

Use Boyle's law

P1 * V1 = P2 * V2

Put the values from the question

760* 310 = 840 * V2

V2 = 760* 310 / 840

V2 = 280.47 cm³

Therefore, volume at final pressure is 280.47 cm³.

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When antacid reacts with HCl to produce H2CO3 it produce fizzy gas react due to a double displacement reaction.

Table salt and carbonic acid are produced in a two fold displacement process when hydrochloric acid and antacid are combined. Additionally, due to the instability of carbonic acid, it will decompose into water and carbon dioxide, emitting a "fizzy" gas.

Strong acid hydrochloric acid is denoted by the chemical formula HCl. The primary ingredient in antacids is sodium bicarbonate, sometimes known as baking soda and has the chemical formula NaHCO3.

Antacid undergoes a chemical reaction when it reacts as a carbonate with powerful acids like hydrochloric acid to create compounds with a different chemical makeup from the beginning components. Similar reactions will be produced by other carbonates, such as calcium carbonate, which makes up the majority of Tums.

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Therefore, 9.49 grams of water is expected in the given 3.21 g sample of CuSO4 • 10H2O.

To determine the number of water molecules in the given hydrate, CuSO4 • 10H2O, we'll need to find out the molar mass of the compound and the molar mass of water to make a comparison.

The molar mass of CuSO4 • 10H2O is calculated as:

CuSO4 → 159.6 g/mol10H2O → 180.16 g/mol (18.016 g/mol × 10)CuSO4 • 10H2O → 159.6 g/mol + 180.16 g/mol

= 339.76 g/mol (rounded to three significant figures)

Thus, we can see that the molar mass of CuSO4 • 10H2O is 339.76 g/mol.

We know that this hydrate consists of ten molecules of water, each having a molar mass of 18.016 g/mol (which is the same as the molar mass of water), and one molecule of CuSO4 with a molar mass of 159.6 g/mol.

Therefore, the number of moles of water in the sample is:

(10 × 18.016 g/mol) ÷ 339.76 g/mol = 0.527 moles

So, the mass of water is equal to its molar mass multiplied by the number of moles.

The mass of water is:

0.527 mol × 18.016 g/mol = 9.49 g

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The right answer is C) A solute's concentration affects a colligative property that causes a depression in freezing point.

What does chemistry mean by a colligative property?

Colligative qualities of solutions are characteristics that depend on the quantity of molecules or ions in the solute, but not on the kind of solute. Osmotic pressure, boiling point elevation, freezing point depression, and vapor pressure reduction are examples of ligand-like properties.

Why are colligative qualities given that name?

Colligative means "connected to the number" in Greek, which suggests that these attributes are related to the quantity of solute particles rather than their identities. These features are known as colligative properties.

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